{"title":"NMB 4715MS Series Fans","description":"\u003cp\u003eBrowse NMB 4715MS series AC axial cooling fans by exact model number.\u003c\/p\u003e","products":[{"product_id":"nmb-mat-4715ms-20t-b50-ac-axial-fan","title":"NMB-MAT 4715MS-20T-B50 AC Axial Fan 200VAC 119x119x38mm 50\/60Hz","description":"\u003cstyle\u003e.nxs-industrial-product-page{--navy:#082f49;--blue:#0b4f7c;--blue2:#0f6ea8;--cyan:#38bdf8;--border:#c9dce9;--text:#173042;font-family:Arial,Helvetica,sans-serif;color:var(--text);line-height:1.75;background:linear-gradient(180deg,#eef6fb,#f7fafc 320px,#eef3f7);padding:18px 0 36px}.nxs-industrial-product-page *{box-sizing:border-box}.nxs-industrial-product-page .container{width:92%;max-width:1120px;margin:auto}.nxs-industrial-product-page .section{position:relative;background:#fff;border:1px solid var(--border);border-radius:14px;margin:22px 0;padding:32px 28px;box-shadow:0 10px 30px rgba(8,47,73,.08);overflow:hidden}.nxs-industrial-product-page 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37px;background:#f7fbfe;border:1px solid #dbe8f0;border-radius:8px}.nxs-industrial-product-page li:before{content:'';position:absolute;left:15px;top:21px;width:9px;height:9px;transform:rotate(45deg);background:var(--blue2)}.nxs-industrial-product-page .purchase-info{background:#edf7fc;border:1px solid #cfe4f1;border-left:4px solid var(--blue2);padding:18px;border-radius:9px;margin:0}.nxs-industrial-product-page .faq{counter-reset:faq}.nxs-industrial-product-page .faq\u003ep{position:relative;background:#f8fbfd;border:1px solid #d8e6ef;border-radius:9px;padding:16px 18px 16px 53px;margin:12px 0;counter-increment:faq}.nxs-industrial-product-page .faq\u003ep:before{content:counter(faq,decimal-leading-zero);position:absolute;left:14px;top:16px;background:var(--blue);color:#fff;font-size:11px;font-weight:bold;padding:4px 6px;border-radius:5px}.nxs-industrial-product-page .faq strong{color:var(--blue)}@media(max-width:760px){.nxs-industrial-product-page .container{width:100%;padding:0 12px}.nxs-industrial-product-page .section{margin:14px 0;padding:23px 15px;border-radius:11px}.nxs-industrial-product-page h2{font-size:20px}.nxs-industrial-product-page .spec-table{table-layout:fixed}.nxs-industrial-product-page .spec-table td{padding:10px 8px;font-size:13px;line-height:1.55}.nxs-industrial-product-page .spec-table td:first-child{width:43%}.nxs-industrial-product-page .features,.nxs-industrial-product-page ul{grid-template-columns:1fr}.nxs-industrial-product-page .card{padding:18px 15px}.nxs-industrial-product-page li{font-size:14px}.nxs-industrial-product-page .faq\u003ep{font-size:14px;padding-left:47px}.nxs-industrial-product-page .faq\u003ep:before{left:11px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page *{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eNMB-MAT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e4715MS-20T-B50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eAC Axial Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eNMB Technologies Corporation \/ MinebeaMitsumi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003e4715MS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Manufacturer Series\u003c\/td\u003e\n\u003ctd\u003e11938MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan Type\u003c\/td\u003e\n\u003ctd\u003eAC Tubeaxial Cooling Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer-Documented Standard Model\u003c\/td\u003e\n\u003ctd\u003e4715MS-20T-B50-B00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional Documented Configuration\u003c\/td\u003e\n\u003ctd\u003e4715MS-20T-B50-BE0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard -B00 Termination\u003c\/td\u003e\n\u003ctd\u003eTwo Electrical Power Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial -BE0 Termination\u003c\/td\u003e\n\u003ctd\u003eThree-Terminal Version Including an Earth Terminal, According to MinebeaMitsumi Model-Conversion Documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Supply Type\u003c\/td\u003e\n\u003ctd\u003eAlternating Current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e200 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Frequency\u003c\/td\u003e\n\u003ctd\u003e50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStarting Voltage\u003c\/td\u003e\n\u003ctd\u003e130 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Dimensions (W × H × D)\u003c\/td\u003e\n\u003ctd\u003e119 × 119 × 38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Width\u003c\/td\u003e\n\u003ctd\u003e119 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Height\u003c\/td\u003e\n\u003ctd\u003e119 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Depth\u003c\/td\u003e\n\u003ctd\u003e38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Fan Size Class\u003c\/td\u003e\n\u003ctd\u003e120 × 120 × 38 mm Class; Actual Manufacturer Frame Dimensions Are 119 × 119 × 38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Frame Tolerance\u003c\/td\u003e\n\u003ctd\u003e119.0 ±0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Depth Tolerance\u003c\/td\u003e\n\u003ctd\u003e38.0 ±0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current at 50Hz\u003c\/td\u003e\n\u003ctd\u003e0.140 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current at 60Hz\u003c\/td\u003e\n\u003ctd\u003e0.120 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power at 50Hz\u003c\/td\u003e\n\u003ctd\u003e15 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power at 60Hz\u003c\/td\u003e\n\u003ctd\u003e13 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power Tolerance\u003c\/td\u003e\n\u003ctd\u003e+10% \/ -20% in Manufacturer Documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Fan Speed at 50Hz\u003c\/td\u003e\n\u003ctd\u003e2600 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Fan Speed at 60Hz\u003c\/td\u003e\n\u003ctd\u003e2900 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Airflow at 50Hz\u003c\/td\u003e\n\u003ctd\u003e89.3 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Airflow at 60Hz\u003c\/td\u003e\n\u003ctd\u003e103.6 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Airflow at 50Hz in Metric Units\u003c\/td\u003e\n\u003ctd\u003e2.50 m³\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Airflow at 60Hz in Metric Units\u003c\/td\u003e\n\u003ctd\u003e2.90 m³\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Static Pressure at 50Hz\u003c\/td\u003e\n\u003ctd\u003e64.7 Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Static Pressure at 60Hz\u003c\/td\u003e\n\u003ctd\u003e76.5 Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Static Pressure at 50Hz in Inches of Water\u003c\/td\u003e\n\u003ctd\u003e0.26 in H₂O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Static Pressure at 60Hz in Inches of Water\u003c\/td\u003e\n\u003ctd\u003e0.31 in H₂O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Level at 50Hz\u003c\/td\u003e\n\u003ctd\u003e37 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Level at 60Hz\u003c\/td\u003e\n\u003ctd\u003e41 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Type\u003c\/td\u003e\n\u003ctd\u003eShaded-Pole Induction Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Protection\u003c\/td\u003e\n\u003ctd\u003eImpedance Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Type\u003c\/td\u003e\n\u003ctd\u003eBall Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer-Listed Life Expectancy\u003c\/td\u003e\n\u003ctd\u003e100,000 Hours L10 at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLegacy Distributor Life Reference\u003c\/td\u003e\n\u003ctd\u003e50,000 Hours at 25°C in DigiKey Attributes; Different from NMB Current L10 Documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd\u003e550 g in Manufacturer Documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e200VAC Industrial Axial Cooling Fan\u003c\/h3\u003e\n\u003cp\u003eThe NMB-MAT 4715MS-20T-B50 is an AC axial cooling fan from the 4715MS series. The manufacturer-documented 4715MS-20T-B50-B00 operates at a nominal 200 VAC and supports both 50Hz and 60Hz electrical supply frequencies. This model is an AC-powered fan and must not be confused with DC axial cooling fans of similar physical dimensions.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e119 × 119 × 38 mm Flange-Mount Construction\u003c\/h3\u003e\n\u003cp\u003eThe fan features a 119 mm square frame with a nominal depth of 38 mm. NMB's series drawing specifies 105 mm mounting-hole center spacing and 4.3 mm mounting holes. The black-painted aluminum frame and plastic impeller provide the documented construction for compatible industrial equipment cooling assemblies.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eFrequency-Specific Electrical Ratings\u003c\/h3\u003e\n\u003cp\u003eAt 50Hz, the 4715MS-20T-B50-B00 is rated at 0.140 A and 15 W input power. At 60Hz, the rating is 0.120 A and 13 W. These frequency-specific electrical values should be used when evaluating fan circuits, equipment power consumption and replacement compatibility.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e2600RPM to 2900RPM Cooling Performance\u003c\/h3\u003e\n\u003cp\u003eNMB specifies 2600 RPM and 89.3 CFM maximum airflow at 50Hz, increasing to 2900 RPM and 103.6 CFM at 60Hz. Maximum static pressure is 64.7 Pa at 50Hz and 76.5 Pa at 60Hz. Actual airflow in an installed enclosure depends on resistance from ventilation openings, component placement and equipment design.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eBall Bearings and Protected AC Motor\u003c\/h3\u003e\n\u003cp\u003eThe documented fan uses ball bearings and a shaded-pole induction motor with impedance protection. NMB specifies an L10 expected life of 100,000 hours at 25°C and an operating temperature range of -10°C to +70°C. The L10 figure is a statistical reliability measure under defined conditions, rather than a guaranteed operating period for every individual fan.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eLegacy Replacement and Connection Options\u003c\/h3\u003e\n\u003cp\u003eNMB identifies 11938MB-B0N-EA-00 as the newer part number for the standard 4715MS-20T-B50-B00. The original -B00 has two AC power terminals, while the separately documented -BE0 includes a third earth terminal. MinebeaMitsumi does not provide a direct successor for the -BE0 in its model conversion table, so its grounding and termination requirements need separate review.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e200VAC industrial electrical control cabinet ventilation\u003c\/li\u003e\n\u003cli\u003eIndustrial machinery electrical enclosure cooling\u003c\/li\u003e\n\u003cli\u003eAC-powered electronic power supply ventilation\u003c\/li\u003e\n\u003cli\u003eIndustrial power conversion equipment thermal management\u003c\/li\u003e\n\u003cli\u003eMachine control panel forced-air cooling systems\u003c\/li\u003e\n\u003cli\u003eCompatible electronic test and measurement equipment ventilation\u003c\/li\u003e\n\u003cli\u003eIndustrial communication and instrumentation cabinet cooling\u003c\/li\u003e\n\u003cli\u003eMaintenance of compatible 119 × 119 × 38 mm AC axial fan installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp class=\"purchase-info\"\u003eWe support online purchase inquiries for the NMB-MAT 4715MS-20T-B50 AC Axial Fan. If you require bulk quantities or information about other industrial cooling products, please contact our team with the full model number, required quantity and equipment specifications. Please indicate whether your existing fan is the standard 4715MS-20T-B50-B00 or the earth-terminal 4715MS-20T-B50-BE0 configuration. We can provide quotation information and discuss applicable delivery and transportation arrangements after reviewing your request. For the standard -B00 model, the manufacturer identifies 11938MB-B0N-EA-00 as the newer part number. Before ordering, verify the nominal 200 VAC supply, 50Hz or 60Hz frequency, terminal configuration, protective grounding arrangement, mounting dimensions and required cooling performance. Installation and replacement of AC-powered fans should be performed using appropriate electrical safety procedures.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is NMB-MAT 4715MS-20T-B50?\u003c\/strong\u003e\u003cbr\u003eNMB-MAT 4715MS-20T-B50 is an AC axial cooling fan from the NMB Technologies 4715MS series. The manufacturer-documented standard full model is 4715MS-20T-B50-B00. It is rated for nominal 200 VAC operation at 50Hz or 60Hz and features a 119 × 119 × 38 mm frame, shaded-pole induction motor and ball bearings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 4715MS-20T-B50 an AC fan or a DC fan?\u003c\/strong\u003e\u003cbr\u003eIt is an AC axial cooling fan. The documented 4715MS-20T-B50-B00 operates from a nominal 200 VAC supply. It should not be connected to a 12 VDC, 24 VDC or 48 VDC power source or substituted for a DC fan based only on similar frame dimensions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the rated voltage and operating frequency?\u003c\/strong\u003e\u003cbr\u003eThe nominal voltage is 200 VAC, with manufacturer specifications at both 50Hz and 60Hz. NMB lists a starting voltage of 130 VAC. This starting-voltage figure does not establish 130 VAC as the rated continuous operating voltage. Use the manufacturer's nominal electrical rating and the requirements of the installed equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions and mounting specifications?\u003c\/strong\u003e\u003cbr\u003eThe fan measures 119 × 119 × 38 mm nominally. NMB's mechanical drawing specifies 119.0 ±0.5 mm external frame dimensions, 38.0 ±0.5 mm depth, 105.0 ±0.3 mm mounting-hole center spacing and 4.3 mm mounting holes. The standard fan uses a flange-type frame.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the current and input power at 50Hz and 60Hz?\u003c\/strong\u003e\u003cbr\u003eAt 50Hz, NMB specifies 0.140 A and 15 W input power. At 60Hz, the fan is rated at 0.120 A and 13 W. The manufacturer lists an input-power tolerance of +10% \/ -20%. These power ratings should be used directly rather than calculating AC real power from voltage and current alone, because motor power factor affects the relationship between those values.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the fan speed of 4715MS-20T-B50?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 2600 RPM at 50Hz and 2900 RPM at 60Hz. Fan speed differs with supply frequency, which should be considered when evaluating equipment cooling performance or comparing replacement models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the maximum airflow and static pressure ratings?\u003c\/strong\u003e\u003cbr\u003eAt 50Hz, NMB specifies 89.3 CFM maximum airflow and 64.7 Pa maximum static pressure. At 60Hz, it specifies 103.6 CFM maximum airflow and 76.5 Pa maximum static pressure. The corresponding airflow values are approximately 2.50 m³\/min and 2.90 m³\/min. Maximum airflow and maximum static pressure are different points on the fan performance curve and are not achieved simultaneously.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the noise level of 4715MS-20T-B50?\u003c\/strong\u003e\u003cbr\u003eNMB lists a noise rating of 37 dB at 50Hz and 41 dB at 60Hz. Installed noise may vary with protective grilles, mounting structure, vibration, cabinet resonance and airflow restriction. Select the appropriate frequency-specific reference for equipment acoustic evaluations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat motor and bearing type does 4715MS-20T-B50 use?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies a shaded-pole induction motor with impedance protection and ball bearing construction. NMB publishes an L10 expected life of 100,000 hours at 25°C. Some legacy distributor listings provide a different lifetime reference, so the manufacturer's current documented L10 rating and applicable operating conditions should be used when assessing service life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between 4715MS-20T-B50-B00 and 4715MS-20T-B50-BE0?\u003c\/strong\u003e\u003cbr\u003eBoth versions are documented by NMB at nominal 200 VAC with the same published 50Hz and 60Hz electrical and airflow performance. The important distinction is the termination and grounding arrangement. The standard -B00 is a two-terminal fan, while MinebeaMitsumi identifies the -BE0 as a three-terminal configuration with an earth terminal. The -BE0 is not assigned the same direct replacement in the manufacturer's conversion table. Confirm the complete suffix before replacing either version.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between 4715MS-20T-B50 and 4715MS-22T-B50?\u003c\/strong\u003e\u003cbr\u003eThe 4715MS-20T-B50 is the nominal 200 VAC version, while 4715MS-22T-B50 is a separate 220 VAC model. For the standard full-suffix versions, NMB lists 11938MB-B0N-EA-00 as the successor to 4715MS-20T-B50-B00 and 11938MB-B2N-EA-00 as the successor to 4715MS-22T-B50-B00. Although their dimensions and nominal fan speeds are similar, the current, starting voltage and electrical ratings differ. Do not assume direct interchangeability between the 200 VAC and 220 VAC versions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 4715MS-20T-B50 discontinued, and what should be checked before ordering?\u003c\/strong\u003e\u003cbr\u003eNMB identifies the standard 4715MS-20T-B50-B00 as a legacy part number not recommended for new designs and specifies 11938MB-B0N-EA-00 as its newer designation. DigiKey lists the old -B00 as obsolete. The -BE0 is separately documented as a three-terminal earth-terminal type without a direct new part number in MinebeaMitsumi's conversion table. Before ordering, verify the full suffix, 200 VAC supply, 50Hz or 60Hz frequency, 119 × 119 × 38 mm frame, 105 mm mounting-hole spacing, ball bearing construction, two-terminal or three-terminal connection, earth provision, counterclockwise rotation viewed from the label side, airflow outlet toward the label side and applicable equipment safety requirements.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"NMB","offers":[{"title":"Default Title","offer_id":67750536806479,"sku":"LL1-NMB- 4715MS20TB50","price":22.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/4715MS-20T-B50-01.jpg?v=1792218516"},{"product_id":"nmb-mat-4715ms-12t-b50-ac-axial-fan","title":"NMB-MAT 4715MS-12T-B50 AC Axial Fan 115VAC 119x119x38mm 50\/60Hz","description":"\u003cstyle\u003e.nxs-industrial-product-page{--navy:#082f49;--blue:#0b4f7c;--blue2:#0f6ea8;--cyan:#38bdf8;--border:#c9dce9;--text:#173042;font-family:Arial,Helvetica,sans-serif;color:var(--text);line-height:1.75;background:linear-gradient(180deg,#eef6fb,#f7fafc 320px,#eef3f7);padding:18px 0 36px}.nxs-industrial-product-page *{box-sizing:border-box}.nxs-industrial-product-page .container{width:92%;max-width:1120px;margin:auto}.nxs-industrial-product-page .section{position:relative;background:#fff;border:1px solid var(--border);border-radius:14px;margin:22px 0;padding:32px 28px;box-shadow:0 10px 30px rgba(8,47,73,.08);overflow:hidden}.nxs-industrial-product-page .section:before{content:'';position:absolute;left:0;top:0;width:5px;height:100%;background:linear-gradient(var(--blue2),var(--blue))}.nxs-industrial-product-page h2{font-size:24px;line-height:1.3;color:var(--navy);margin:0 0 23px;border-bottom:2px solid 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#cfe4f1;border-left:4px solid var(--blue2);padding:18px;border-radius:9px;margin:0}.nxs-industrial-product-page .faq{counter-reset:faq}.nxs-industrial-product-page .faq\u003ep{position:relative;background:#f8fbfd;border:1px solid #d8e6ef;border-radius:9px;padding:16px 18px 16px 53px;margin:12px 0;counter-increment:faq}.nxs-industrial-product-page .faq\u003ep:before{content:counter(faq,decimal-leading-zero);position:absolute;left:14px;top:16px;background:var(--blue);color:#fff;font-size:11px;font-weight:bold;padding:4px 6px;border-radius:5px}.nxs-industrial-product-page .faq strong{color:var(--blue)}@media(max-width:760px){.nxs-industrial-product-page .container{width:100%;padding:0 12px}.nxs-industrial-product-page .section{margin:14px 0;padding:23px 15px;border-radius:11px}.nxs-industrial-product-page h2{font-size:20px}.nxs-industrial-product-page .spec-table{table-layout:fixed}.nxs-industrial-product-page .spec-table td{padding:10px 8px;font-size:13px;line-height:1.55}.nxs-industrial-product-page .spec-table td:first-child{width:43%}.nxs-industrial-product-page .features,.nxs-industrial-product-page ul{grid-template-columns:1fr}.nxs-industrial-product-page .card{padding:18px 15px}.nxs-industrial-product-page li{font-size:14px}.nxs-industrial-product-page .faq\u003ep{font-size:14px;padding-left:47px}.nxs-industrial-product-page .faq\u003ep:before{left:11px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page *{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eNMB-MAT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e4715MS-12T-B50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eAC Axial Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eNMB Technologies Corporation \/ MinebeaMitsumi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003e4715MS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer-Documented Complete Model\u003c\/td\u003e\n\u003ctd\u003e4715MS-12T-B50-A00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Frequency-Specific Models\u003c\/td\u003e\n\u003ctd\u003e4715MS-12T-B50-A00_50Hz and 4715MS-12T-B50-A00_60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAC Tubeaxial Cooling Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Supply Type\u003c\/td\u003e\n\u003ctd\u003eSingle-Phase Alternating Current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e115 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Frequency\u003c\/td\u003e\n\u003ctd\u003e50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStarting Voltage\u003c\/td\u003e\n\u003ctd\u003e65 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Dimensions (W × H × D)\u003c\/td\u003e\n\u003ctd\u003e119 × 119 × 38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Width\u003c\/td\u003e\n\u003ctd\u003e119 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Height\u003c\/td\u003e\n\u003ctd\u003e119 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Depth\u003c\/td\u003e\n\u003ctd\u003e38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Fan Size Class\u003c\/td\u003e\n\u003ctd\u003e120 × 120 × 38 mm Class; Actual Manufacturer Dimensions Are 119 × 119 × 38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current at 50Hz\u003c\/td\u003e\n\u003ctd\u003e0.250 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current at 60Hz\u003c\/td\u003e\n\u003ctd\u003e0.210 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power at 50Hz\u003c\/td\u003e\n\u003ctd\u003e15.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power at 60Hz\u003c\/td\u003e\n\u003ctd\u003e14.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power Tolerance\u003c\/td\u003e\n\u003ctd\u003e+10% \/ -20% According to NMB Documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Fan Speed at 50Hz\u003c\/td\u003e\n\u003ctd\u003e2600 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Fan Speed at 60Hz\u003c\/td\u003e\n\u003ctd\u003e2900 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Airflow at 50Hz\u003c\/td\u003e\n\u003ctd\u003e89.3 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Airflow at 60Hz\u003c\/td\u003e\n\u003ctd\u003e103.6 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Airflow at 50Hz in Metric Units\u003c\/td\u003e\n\u003ctd\u003e2.50 m³\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Airflow at 60Hz in Metric Units\u003c\/td\u003e\n\u003ctd\u003e2.90 m³\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHistorical Airflow Figure at 50Hz\u003c\/td\u003e\n\u003ctd\u003e88.2 CFM in an Older NMB Series Datasheet; Current Manufacturer Product Page Lists 89.3 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHistorical Airflow Figure at 60Hz\u003c\/td\u003e\n\u003ctd\u003e102.0 CFM in an Older NMB Series Datasheet and Distributor Records; Current Manufacturer Product Page Lists 103.6 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAirflow Data Note\u003c\/td\u003e\n\u003ctd\u003eThe Manufacturer's Current Product Pages and Older Catalog Express the Same 2.50 \/ 2.90 m³\/min Values with Slightly Different CFM Figures; Current Product-Page Values Are Used Here\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Static Pressure at 50Hz\u003c\/td\u003e\n\u003ctd\u003e64.7 Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Static Pressure at 60Hz\u003c\/td\u003e\n\u003ctd\u003e76.4 Pa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Static Pressure at 50Hz in Inches of Water\u003c\/td\u003e\n\u003ctd\u003e0.26 in H₂O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Static Pressure at 60Hz in Inches of Water\u003c\/td\u003e\n\u003ctd\u003e0.31 in H₂O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Level at 50Hz\u003c\/td\u003e\n\u003ctd\u003e37 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Level at 60Hz\u003c\/td\u003e\n\u003ctd\u003e41 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Structure\u003c\/td\u003e\n\u003ctd\u003eShaded-Pole Induction Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Protection\u003c\/td\u003e\n\u003ctd\u003eImpedance Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Type\u003c\/td\u003e\n\u003ctd\u003eBall Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer-Listed Life Expectancy\u003c\/td\u003e\n\u003ctd\u003e100,000 Hours L10 at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLife Rating Interpretation\u003c\/td\u003e\n\u003ctd\u003eL10 Is a Statistical Life Reference Corresponding to 10% Failure Under the Defined Test Conditions; Not a Guaranteed Individual Service Life\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLegacy Distributor Life Reference\u003c\/td\u003e\n\u003ctd\u003e50,000 Hours at 25°C in DigiKey Historical Product Attributes; Different from the Manufacturer's Current L10 Reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Mass\u003c\/td\u003e\n\u003ctd\u003e550 g in NMB Manufacturer Documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e115VAC Industrial Axial Cooling Fan\u003c\/h3\u003e\n\u003cp\u003eThe NMB-MAT 4715MS-12T-B50 is an AC axial cooling fan from the 4715MS product family. The manufacturer-documented full model, 4715MS-12T-B50-A00, operates from a nominal 115 VAC supply at either 50Hz or 60Hz. It is intended for forced-air ventilation in compatible industrial control equipment, electronic power supplies and machinery enclosures.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eCompact 119 × 119 × 38 mm Frame\u003c\/h3\u003e\n\u003cp\u003eThe fan features a 119 mm square housing and a 38 mm frame depth. Its black-painted aluminum casing and UL94V-0 plastic impeller are documented in NMB's series datasheet. The flange-type mounting arrangement includes a nominal 105 mm mounting-hole spacing, supporting installation in equipment designed for this mechanical format.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e50Hz and 60Hz Electrical Performance\u003c\/h3\u003e\n\u003cp\u003eNMB specifies 0.250 A, 15.5 W and 2600 RPM at 50Hz, compared with 0.210 A, 14.5 W and 2900 RPM at 60Hz. These ratings demonstrate why the correct operating frequency is important when calculating electrical loading, evaluating fan operation and selecting replacements for equipment used in different power systems.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eUp to 103.6CFM Manufacturer-Documented Airflow\u003c\/h3\u003e\n\u003cp\u003eCurrent NMB product pages list a maximum airflow of 89.3 CFM at 50Hz and 103.6 CFM at 60Hz. Maximum static pressure is 64.7 Pa and 76.4 Pa, respectively. An older series catalog gives slightly different CFM conversions for the same 2.50 and 2.90 m³\/min values. Actual installed airflow depends on the equipment's airflow resistance.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eBall Bearings and Impedance-Protected Motor\u003c\/h3\u003e\n\u003cp\u003eThe 4715MS-12T-B50-A00 uses a shaded-pole induction motor with impedance protection and ball bearing construction. The manufacturer lists a 100,000-hour L10 expected life at 25°C and an operating temperature range of -10°C to +70°C. The published expected-life figure is a statistical reliability reference rather than a guaranteed service duration.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eManufacturer-Documented Replacement Model\u003c\/h3\u003e\n\u003cp\u003eNMB identifies 11938MB-A1N-EA-00 as the updated part number for 4715MS-12T-B50-A00. Both 50Hz and 60Hz current manufacturer product records specify the same electrical and airflow performance for the newer designation. Replacement selection should still confirm the complete model, terminal arrangement, mounting dimensions, grounding provisions and equipment requirements.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e115VAC industrial electrical control cabinet ventilation\u003c\/li\u003e\n\u003cli\u003eIndustrial machine controller enclosure cooling\u003c\/li\u003e\n\u003cli\u003eAC-powered electronic power supply thermal management\u003c\/li\u003e\n\u003cli\u003eIndustrial instrumentation and automation cabinet ventilation\u003c\/li\u003e\n\u003cli\u003eIndustrial power electronics forced-air cooling\u003c\/li\u003e\n\u003cli\u003eElectronic test and measurement equipment ventilation\u003c\/li\u003e\n\u003cli\u003eMaintenance of legacy NMB 4715MS cooling fan installations\u003c\/li\u003e\n\u003cli\u003eReplacement of compatible 119 × 119 × 38 mm AC axial fans\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp class=\"purchase-info\"\u003eWe support online purchase inquiries for the NMB-MAT 4715MS-12T-B50 AC Axial Fan. For individual units, bulk requirements or related industrial cooling products, please contact our team with the required quantity, complete model number and equipment specifications. The documented standard configuration is 4715MS-12T-B50-A00, rated for nominal 115 VAC at 50Hz and 60Hz. We can provide quotation information and discuss applicable delivery and transportation arrangements after reviewing your request. NMB identifies 11938MB-A1N-EA-00 as the newer part number. Before ordering or installing a replacement, confirm the electrical supply, operating frequency, full model suffix, two-terminal or equipment-specific lead-wire connection, protective grounding provision, 119 × 119 × 38 mm dimensions and required cooling performance. AC electrical installation should be performed by appropriately qualified personnel using applicable safety procedures.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is NMB-MAT 4715MS-12T-B50?\u003c\/strong\u003e\u003cbr\u003eNMB-MAT 4715MS-12T-B50 is an AC axial cooling fan from NMB Technologies. The manufacturer's documented complete model is 4715MS-12T-B50-A00. It operates at a nominal 115 VAC with 50Hz and 60Hz ratings and has a 119 × 119 × 38 mm frame, ball bearings and a shaded-pole induction motor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 4715MS-12T-B50 an AC fan or a DC fan?\u003c\/strong\u003e\u003cbr\u003eIt is an AC axial cooling fan. The documented model uses a nominal 115 VAC alternating-current supply. It must not be connected directly to 12 VDC, 24 VDC or 48 VDC fan circuits. Similar physical dimensions do not establish compatibility with DC axial fans.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the voltage and frequency specifications?\u003c\/strong\u003e\u003cbr\u003eNMB specifies 115 VAC nominal voltage with separate 50Hz and 60Hz operating characteristics. The published starting voltage is 65 VAC at both frequencies. This starting-voltage specification does not establish 65 VAC as the recommended continuous operating voltage; use the manufacturer's nominal supply rating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and mounting-hole specifications?\u003c\/strong\u003e\u003cbr\u003eThe fan is nominally 119 mm wide, 119 mm high and 38 mm deep. NMB's mechanical drawing specifies 119.0 ±0.5 mm frame dimensions, 38.0 ±0.5 mm depth, 105.0 ±0.3 mm mounting-hole center spacing and 4.3 mm mounting holes. Confirm equipment clearance and mounting details before replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rated current at 50Hz and 60Hz?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 0.250 A at 50Hz and 0.210 A at 60Hz. The difference is associated with the operating characteristics of the AC induction motor at each supply frequency. Use the appropriate value when evaluating equipment fan circuits and electrical loading.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the input power of 4715MS-12T-B50?\u003c\/strong\u003e\u003cbr\u003eNMB lists 15.5 W at 50Hz and 14.5 W at 60Hz, with a published power tolerance of +10% \/ -20%. These are manufacturer-specified real input-power ratings. Multiplying AC voltage by RMS current does not necessarily give the same wattage because the motor's power factor affects real power consumption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the fan speed at 50Hz and 60Hz?\u003c\/strong\u003e\u003cbr\u003eThe documented fan speed is 2600 RPM at 50Hz and 2900 RPM at 60Hz. Both are specified by NMB for the complete 4715MS-12T-B50-A00. The appropriate frequency-specific speed should be used when comparing cooling performance and replacement options.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the maximum airflow and static pressure ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer's current product pages specify 89.3 CFM maximum airflow and 64.7 Pa maximum static pressure at 50Hz. At 60Hz, they specify 103.6 CFM and 76.4 Pa. Maximum free-air flow and maximum static pressure occur at different operating points and are not simultaneously achieved. Actual airflow depends on equipment airflow resistance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do some distributors list 102CFM instead of 103.6CFM?\u003c\/strong\u003e\u003cbr\u003eOlder NMB series documents and distributor product records list 102.0 CFM at 60Hz, while the manufacturer's current product page lists 103.6 CFM. Both sources provide approximately 2.90 m³\/min as the corresponding metric airflow. A similar difference appears at 50Hz, with historical documents showing 88.2 CFM and the current product page showing 89.3 CFM. For this product description, the current manufacturer webpage values are used.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the motor type, bearing type and expected service life?\u003c\/strong\u003e\u003cbr\u003eThe documented fan uses a shaded-pole induction motor with impedance protection and ball bearings. NMB lists an L10 life reference of 100,000 hours at 25°C and an operating temperature range of -10°C to +70°C. The L10 figure describes a statistical life criterion under defined conditions and does not guarantee that every installed fan will operate for that duration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes 4715MS-12T-B50 have terminals or lead wires?\u003c\/strong\u003e\u003cbr\u003eNMB's series documentation specifies Faston #110 or equivalent terminals and identifies separate lead-wire configurations using UL3266 AWG22 wire. DigiKey describes the standard 4715MS-12T-B50-A00 as a two-terminal fan, while some distributors refer to two-wire versions. Check the complete assembly and existing equipment harness before ordering. The standard two-terminal configuration does not provide separate tachometer, locked-rotor or PWM control connections.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 4715MS-12T-B50 discontinued, and what is the replacement?\u003c\/strong\u003e\u003cbr\u003eNMB identifies 4715MS-12T-B50-A00 as a legacy part number not recommended for new designs, and major distributors list it as obsolete. The manufacturer identifies 11938MB-A1N-EA-00 as its newer designation, with corresponding 50Hz and 60Hz specifications. Before ordering, confirm the full -A00 suffix, nominal 115 VAC voltage, 50\/60Hz frequency, 119 × 119 × 38 mm frame, 105 mm mounting-hole spacing, two-terminal connection, protective grounding provision, counterclockwise rotation viewed from the label side and airflow outlet toward the label side. The related 4715MS-12T-B5A-A00 has a different replacement designation, while 4715MS-20T-B50 and 4715MS-23T-B50 belong to different voltage configurations and should not be assumed electrically interchangeable.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"NMB","offers":[{"title":"Default Title","offer_id":67751153107023,"sku":"LL1-NMB-4715MS12TB50","price":21.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/4715MS-12T-B50-01.jpg?v=1792221730"},{"product_id":"nmb-mat-4715ms-23t-b10-ac-axial-fan","title":"NMB-MAT 4715MS-23T-B10 AC Axial Fan 230VAC 119x119x38mm 50\/60Hz","description":"\u003cstyle\u003e.nxs-industrial-product-page{--navy:#082f49;--blue:#0b4f7c;--blue2:#0f6ea8;--cyan:#38bdf8;--border:#c9dce9;--text:#173042;font-family:Arial,Helvetica,sans-serif;color:var(--text);line-height:1.75;background:linear-gradient(180deg,#eef6fb,#f7fafc 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53px;margin:12px 0;counter-increment:faq}.nxs-industrial-product-page .faq\u003ep:before{content:counter(faq,decimal-leading-zero);position:absolute;left:14px;top:16px;background:var(--blue);color:#fff;font-size:11px;font-weight:bold;padding:4px 6px;border-radius:5px}.nxs-industrial-product-page .faq strong{color:var(--blue)}@media(max-width:760px){.nxs-industrial-product-page .container{width:100%;padding:0 12px}.nxs-industrial-product-page .section{margin:14px 0;padding:23px 15px;border-radius:11px}.nxs-industrial-product-page h2{font-size:20px}.nxs-industrial-product-page .spec-table{table-layout:fixed}.nxs-industrial-product-page .spec-table td{padding:10px 8px;font-size:13px;line-height:1.55}.nxs-industrial-product-page .spec-table td:first-child{width:43%}.nxs-industrial-product-page .features,.nxs-industrial-product-page ul{grid-template-columns:1fr}.nxs-industrial-product-page .card{padding:18px 15px}.nxs-industrial-product-page li{font-size:14px}.nxs-industrial-product-page .faq\u003ep{font-size:14px;padding-left:47px}.nxs-industrial-product-page .faq\u003ep:before{left:11px}}@media(prefers-reduced-motion:reduce){.nxs-industrial-product-page *{transition:none!important}}\u003c\/style\u003e\n\u003cdiv class=\"nxs-industrial-product-page\"\u003e\n\u003cdiv class=\"container\"\u003e\u003cmain\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eNMB-MAT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e4715MS-23T-B10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eAC Axial Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eNMB Technologies Corporation \/ MinebeaMitsumi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003e4715MS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer-Documented Complete Model\u003c\/td\u003e\n\u003ctd\u003e4715MS-23T-B10-A00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Frequency-Specific Records\u003c\/td\u003e\n\u003ctd\u003e4715MS-23T-B10-A00_50Hz and 4715MS-23T-B10-A00-60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAC Tubeaxial Cooling Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Supply Type\u003c\/td\u003e\n\u003ctd\u003eSingle-Phase Alternating Current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e230 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Frequency\u003c\/td\u003e\n\u003ctd\u003e50 \/ 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStarting Voltage\u003c\/td\u003e\n\u003ctd\u003e175 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Dimensions (W × H × D)\u003c\/td\u003e\n\u003ctd\u003e119 × 119 × 38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Width\u003c\/td\u003e\n\u003ctd\u003e119 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Height\u003c\/td\u003e\n\u003ctd\u003e119 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Depth\u003c\/td\u003e\n\u003ctd\u003e38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommon Fan Size Class\u003c\/td\u003e\n\u003ctd\u003e120 × 120 × 38 mm Class; Actual Manufacturer Frame Dimensions Are 119 × 119 × 38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Frame Tolerance\u003c\/td\u003e\n\u003ctd\u003e119.0 ±0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer Depth Tolerance\u003c\/td\u003e\n\u003ctd\u003e38.0 ±0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current at 50Hz\u003c\/td\u003e\n\u003ctd\u003e0.050 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e230VAC Industrial Axial Cooling Fan\u003c\/h3\u003e\n\u003cp\u003eThe NMB-MAT 4715MS-23T-B10 is an AC axial cooling fan from the 4715MS family. Its manufacturer-documented full model, 4715MS-23T-B10-A00, operates from a nominal 230 VAC supply at 50Hz or 60Hz. It is designed for forced-air ventilation in compatible electronic equipment, industrial control cabinets and machinery enclosures.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e119 × 119 × 38 mm Flange-Mount Frame\u003c\/h3\u003e\n\u003cp\u003eThe fan features a 119 mm square housing with a 38 mm depth. Its black-painted aluminum casing and black UL94V-0 plastic impeller provide the documented mechanical construction. NMB's series drawing identifies 105 mm mounting-hole spacing, 4.3 mm mounting holes and a protective-earth tap, supporting installation in equipment designed for this flange-type format.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eLow-Speed B10 Airflow Performance\u003c\/h3\u003e\n\u003cp\u003eThe documented B10 model is rated at 1350 RPM and 45.9 CFM maximum airflow at 50Hz, and 1450 RPM and 49.4 CFM at 60Hz. Maximum static pressure is 14.7 Pa at both frequencies. The B10 is a lower-speed performance class than B20, B30, B40 and B50 versions in the same voltage family, making complete model identification important.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003e50Hz and 60Hz Electrical Specifications\u003c\/h3\u003e\n\u003cp\u003eNMB specifies 6.5 W input power at 50Hz and 6.0 W at 60Hz. The current is listed as 0.05 A on the individual product pages, while the manufacturer's series datasheet specifies 0.045 A at 60Hz. These figures should be interpreted in their documentation context rather than treated as different fan models without further evidence.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eBall Bearings and Impedance Protection\u003c\/h3\u003e\n\u003cp\u003eThe 4715MS-23T-B10-A00 uses a shaded-pole induction motor with impedance protection and ball bearings. NMB specifies an L10 expected life of 100,000 hours at 25°C and an operating temperature range of -10°C to +70°C. The L10 figure is a statistical life reference under defined conditions, not a guaranteed operating duration.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003carticle class=\"card\"\u003e\n\u003ch3\u003eManufacturer-Listed 11938MB Replacement\u003c\/h3\u003e\n\u003cp\u003eNMB identifies 11938MB-B3J-EA-00 as the updated model number for the legacy 4715MS-23T-B10-A00. The manufacturer publishes corresponding 50Hz and 60Hz specifications for the replacement. The closely related 4715MS-23T-B1A-A00 has a different successor, 11938MB-B3J-EP-00, so exact lettering and the full suffix should be checked during procurement.\u003c\/p\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e230VAC industrial electrical control cabinet ventilation\u003c\/li\u003e\n\u003cli\u003eLow-speed forced-air cooling in compatible electronics enclosures\u003c\/li\u003e\n\u003cli\u003eIndustrial machinery control-panel thermal management\u003c\/li\u003e\n\u003cli\u003eAC-powered electronic power supply ventilation\u003c\/li\u003e\n\u003cli\u003eElectronic instrumentation and monitoring cabinet cooling\u003c\/li\u003e\n\u003cli\u003eIndustrial communication and automation equipment ventilation\u003c\/li\u003e\n\u003cli\u003eMaintenance of legacy NMB 4715MS-B10 fan installations\u003c\/li\u003e\n\u003cli\u003eReplacement of matching 119 × 119 × 38 mm AC axial cooling fans\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp class=\"purchase-info\"\u003eWe support online purchase inquiries for the NMB-MAT 4715MS-23T-B10 AC Axial Fan. For individual units, bulk purchasing requirements or information about related industrial cooling products, please contact our team with the complete model number, required quantity and equipment specifications. The manufacturer-documented standard configuration is 4715MS-23T-B10-A00, rated for nominal 230 VAC at 50Hz and 60Hz. We can provide quotation information and discuss applicable delivery and transportation arrangements after reviewing your requirements. NMB identifies 11938MB-B3J-EA-00 as the newer part number. Before ordering, verify the full suffix, electrical supply, intended frequency, two-terminal connection, protective grounding arrangement, 119 × 119 × 38 mm frame, mounting-hole spacing, rotation and airflow direction, and required cooling performance. AC-powered fan installation should be carried out using appropriate electrical safety procedures.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"section faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is NMB-MAT 4715MS-23T-B10?\u003c\/strong\u003e\u003cbr\u003eNMB-MAT 4715MS-23T-B10 is an AC axial cooling fan from NMB Technologies. The documented full model is 4715MS-23T-B10-A00. It operates at a nominal 230 VAC, supports both 50Hz and 60Hz power frequencies and has a 119 × 119 × 38 mm frame, shaded-pole induction motor and ball bearings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 4715MS-23T-B10 an AC or DC cooling fan?\u003c\/strong\u003e\u003cbr\u003eIt is an AC axial cooling fan. NMB specifies a nominal 230 VAC alternating-current supply. It is not a 12 VDC, 24 VDC or 48 VDC model and should not be used on a DC fan circuit or replaced with a DC fan merely because the mounting dimensions appear similar.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the voltage and frequency ratings?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies a nominal voltage of 230 VAC and operation at 50Hz and 60Hz. The documented starting voltage is 175 VAC. This is a starting characteristic rather than a recommended continuous supply rating. Use the manufacturer's nominal supply requirements and verify the installed equipment electrical system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and mounting-hole specifications?\u003c\/strong\u003e\u003cbr\u003eThe fan is nominally 119 mm wide, 119 mm high and 38 mm deep. The manufacturer series drawing identifies frame dimensions of 119.0 ±0.5 mm, depth of 38.0 ±0.5 mm, mounting-hole spacing of 105.0 ±0.3 mm and 4.3 mm mounting holes. The drawing also shows an M4 earth tap. Confirm the equipment's mounting hardware, wiring clearance and protective-grounding arrangement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the current rating of 4715MS-23T-B10?\u003c\/strong\u003e\u003cbr\u003eNMB's individual product pages specify 0.050 A at both 50Hz and 60Hz. The manufacturer's 11938MB series datasheet gives 0.050 A at 50Hz and 0.045 A at 60Hz, which is also the current rating shown in DigiKey's legacy product attributes. This difference should be recognized as a documentation precision difference unless additional engineering data establishes otherwise.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the input power at 50Hz and 60Hz?\u003c\/strong\u003e\u003cbr\u003eThe manufacturer specifies 6.5 W at 50Hz and 6.0 W at 60Hz, with a published input-power tolerance of +10% \/ -20%. Because this is an AC induction motor, the rated input power is not necessarily equal to the supply voltage multiplied by RMS current. Real power depends on the motor's power factor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the fan speed of 4715MS-23T-B10?\u003c\/strong\u003e\u003cbr\u003eThe documented nominal fan speed is 1350 RPM at 50Hz and 1450 RPM at 60Hz. These values are lower than those of the related B20, B30, B40 and B50 performance classes, which have different airflow, current and acoustic characteristics. Use the full B10 model rather than substituting specifications from a faster version.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the maximum airflow and static pressure ratings?\u003c\/strong\u003e\u003cbr\u003eNMB specifies 45.9 CFM maximum airflow at 50Hz and 49.4 CFM at 60Hz, equivalent to approximately 1.30 and 1.40 m³\/min. The maximum static pressure is 14.7 Pa at both frequencies, equivalent to approximately 0.059 inches of water. Maximum airflow and maximum static pressure occur at different operating points of the fan performance curve and are not achieved simultaneously.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does the NMB 60Hz webpage show 0.59 in H₂O for static pressure?\u003c\/strong\u003e\u003cbr\u003eThe 60Hz manufacturer webpage lists 14.7 Pa alongside 0.59 inches of water. These are not equivalent values: 14.7 Pa converts to approximately 0.059 inches of water. The manufacturer series datasheet supports the approximately 0.06 in H₂O value. The product specification therefore uses 14.7 Pa and approximately 0.059 in H₂O rather than repeating the inconsistent webpage figure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the noise, bearing and expected-life specifications?\u003c\/strong\u003e\u003cbr\u003eNMB lists an acoustic noise rating of 27 dB at 50Hz and 28 dB at 60Hz. The fan uses ball bearings and has a manufacturer L10 expected life reference of 100,000 hours at 25°C. The L10 figure describes statistical reliability under defined conditions and should not be interpreted as a guaranteed service duration. Installed acoustic noise depends on mounting vibration, airflow restriction and enclosure geometry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes 4715MS-23T-B10 use electrical terminals or lead wires?\u003c\/strong\u003e\u003cbr\u003eThe standard 4715MS-23T-B10-A00 is documented with two electrical terminals. NMB's series datasheet specifies Faston #110 or equivalent terminals and identifies separately available lead-wire configurations using UL3266 AWG22 wire. The standard terminal arrangement does not provide a dedicated tachometer, locked-rotor signal or PWM control input. Confirm the actual assembly's connection type and protective grounding requirements before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 4715MS-23T-B10 discontinued, and what is its replacement?\u003c\/strong\u003e\u003cbr\u003eNMB identifies 4715MS-23T-B10-A00 as a legacy model not recommended for new designs, and DigiKey lists it as obsolete. The manufacturer recommends 11938MB-B3J-EA-00 as its updated designation. The related 4715MS-23T-B1A-A00 instead maps to 11938MB-B3J-EP-00 and should not be confused with B10-A00. Before ordering, verify the full model suffix, nominal 230 VAC voltage, 50\/60Hz operation, starting voltage, current and input power, 119 × 119 × 38 mm frame, 105 mm mounting-hole spacing, two-terminal connection, earth provision, counterclockwise rotation viewed from the label side and airflow outlet toward the label side. The related 220VAC and 240VAC versions have different nominal voltage specifications and should not be assumed directly interchangeable.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/main\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"NMB","offers":[{"title":"Default Title","offer_id":67751653113935,"sku":"LL1-NMB- 4715MS23TB10","price":26.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/4715MS-23T-B10-01-_01.jpg?v=1792222675"},{"product_id":"nmb-4715ms-23t-b5a-ac-axial-fan","title":"NMB 4715MS-23T-B5A AC Axial Fan 230VAC 119x119x38mm Fast shipment","description":"\u003cstyle\u003e.nxs-industrial-product-page{--industrial-navy:#082f49;--industrial-blue:#0b4f7c;--industrial-blue-2:#0f6ea8;--industrial-blue-3:#1784c1;--industrial-cyan:#38bdf8;--steel-blue:#dcebf5;--steel-blue-2:#edf6fb;--steel-line:#c9dce9;--surface:#ffffff;--surface-soft:#f7fbfe;--text-main:#173042;--text-muted:#5e7382;--shadow-soft:0 10px 30px 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.card:hover{transform:none;}.nxs-industrial-product-page .section ul{grid-template-columns:1fr;gap:9px;}.nxs-industrial-product-page .section li{padding:11px 12px 11px 36px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type \u003e p{padding:16px 14px 16px 48px;font-size:14px;}.nxs-industrial-product-page .section:last-of-type \u003e p::before{left:12px;top:15px;min-width:26px;height:26px;font-size:10px;}}@media (prefers-reduced-motion:reduce){.nxs-industrial-product-page,.nxs-industrial-product-page *,.nxs-industrial-product-page *::before,.nxs-industrial-product-page *::after{transition:none !important;}}\u003c\/style\u003e\u003cdiv class=\"nxs-industrial-product-page\"\u003e\u003cdiv class=\"container\"\u003e\u003cmain\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eNMB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e4715MS-23T-B5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Category\u003c\/td\u003e\n\u003ctd\u003eAC Axial Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003e4715MS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan Type\u003c\/td\u003e\n\u003ctd\u003eAC Axial Fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e230 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Frequency\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStarting Voltage\u003c\/td\u003e\n\u003ctd\u003e175 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current\u003c\/td\u003e\n\u003ctd\u003e0.12 A (50 Hz) \/ 0.10 A (60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power\u003c\/td\u003e\n\u003ctd\u003e15 W (50 Hz) \/ 14 W (60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan Speed\u003c\/td\u003e\n\u003ctd\u003e2600 RPM (50 Hz) \/ 2900 RPM (60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Air Flow\u003c\/td\u003e\n\u003ctd\u003e2.5 m³\/min (50 Hz) \/ 2.9 m³\/min (60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Static Pressure\u003c\/td\u003e\n\u003ctd\u003e63.8 Pa (50 Hz) \/ 70.7 Pa (60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise Level\u003c\/td\u003e\n\u003ctd\u003e37 dB(A) (50 Hz) \/ 41 dB(A) (60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e119 x 119 x 38 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing Type\u003c\/td\u003e\n\u003ctd\u003eBall Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Type\u003c\/td\u003e\n\u003ctd\u003eShaded Pole Induction Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Protection\u003c\/td\u003e\n\u003ctd\u003eThermal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Material\u003c\/td\u003e\n\u003ctd\u003ePainted Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpeller Material\u003c\/td\u003e\n\u003ctd\u003eGlass-Filled Polycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotation Direction\u003c\/td\u003e\n\u003ctd\u003eCounterclockwise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAirflow Direction\u003c\/td\u003e\n\u003ctd\u003eOut Over Support Struts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApproximate Weight\u003c\/td\u003e\n\u003ctd\u003e550 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cdiv class=\"features\"\u003e\n\u003carticle class=\"card\"\u003e\u003ch3\u003e230 VAC AC Operation\u003c\/h3\u003e\n\u003cp\u003eOperates from a 230 VAC supply at 50 Hz or 60 Hz for equipment ventilation.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003e119 x 119 x 38 mm Frame\u003c\/h3\u003e\n\u003cp\u003eThe square axial fan frame measures 119 x 119 x 38 mm.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eBall Bearing Design\u003c\/h3\u003e\n\u003cp\u003eUses a ball bearing assembly within the 4715MS fan construction.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eFrequency-Dependent Speed\u003c\/h3\u003e\n\u003cp\u003eRuns at 2600 RPM at 50 Hz or 2900 RPM at 60 Hz according to published specifications.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eSpecified Airflow\u003c\/h3\u003e\n\u003cp\u003eDelivers a maximum airflow of 2.5 m³\/min at 50 Hz and 2.9 m³\/min at 60 Hz.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"card\"\u003e\u003ch3\u003eThermally Protected Motor\u003c\/h3\u003e\n\u003cp\u003eIncludes a shaded pole induction motor with thermal protection, an aluminum frame and a polycarbonate impeller.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial equipment ventilation\u003c\/li\u003e\n\u003cli\u003eElectrical cabinet air circulation\u003c\/li\u003e\n\u003cli\u003eAutomation control panel cooling\u003c\/li\u003e\n\u003cli\u003ePower supply enclosure ventilation\u003c\/li\u003e\n\u003cli\u003eIndustrial machinery cooling\u003c\/li\u003e\n\u003cli\u003eEquipment heat exhaust applications\u003c\/li\u003e\n\u003cli\u003eForced-air cooling assemblies\u003c\/li\u003e\n\u003cli\u003eMaintenance of AC fan ventilation systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003ePurchase Information\u003c\/h2\u003e\n\u003cp\u003eWe support online purchase of the NMB 4715MS-23T-B5A AC Axial Fan. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"section\"\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is NMB 4715MS-23T-B5A?\u003c\/strong\u003e\u003cbr\u003eIt is a 230 VAC axial fan in the NMB 4715MS series, designed to move air through equipment ventilation assemblies.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the rated voltage of 4715MS-23T-B5A?\u003c\/strong\u003e\u003cbr\u003eThe published nominal voltage is 230 VAC with 50\/60 Hz operation.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this fan?\u003c\/strong\u003e\u003cbr\u003eThe frame dimensions are 119 x 119 x 38 mm.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat are the fan speeds at 50 Hz and 60 Hz?\u003c\/strong\u003e\u003cbr\u003ePublished fan speeds are 2600 RPM at 50 Hz and 2900 RPM at 60 Hz.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the maximum airflow of 4715MS-23T-B5A?\u003c\/strong\u003e\u003cbr\u003eMaximum airflow is 2.5 m³\/min at 50 Hz and 2.9 m³\/min at 60 Hz.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat is the rated input power?\u003c\/strong\u003e\u003cbr\u003eThe published input power is 15 W at 50 Hz and 14 W at 60 Hz.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat bearing type does the fan use?\u003c\/strong\u003e\u003cbr\u003eThe fan uses a ball bearing assembly.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eDoes the fan include motor protection?\u003c\/strong\u003e\u003cbr\u003eYes. The manufacturer series data identifies thermal motor protection for B5A configurations.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat materials are used in the fan?\u003c\/strong\u003e\u003cbr\u003eThe series data identifies a painted aluminum casing and a glass-filled polycarbonate impeller.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eCan this fan be used in electrical cabinet ventilation?\u003c\/strong\u003e\u003cbr\u003eIt can be considered after checking enclosure airflow requirements, mounting dimensions, supply voltage, connection details and environmental conditions.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eWhat should be verified before ordering?\u003c\/strong\u003e\u003cbr\u003eConfirm the complete model number and any suffix, rated voltage, frequency, fan dimensions, required airflow, mounting configuration and electrical connection against the existing system.\u003c\/p\u003e\u003c\/section\u003e\u003c\/main\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"NMB","offers":[{"title":"Default Title","offer_id":67752220622927,"sku":"LL1-NMB-4715MS23TB5A","price":27.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/files\/4715MS-23T-B5A-01.jpg?v=1792224086"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/7569\/2623\/collections\/4715MS-23T-B5A-01.jpg?v=1793613724","url":"https:\/\/yunshuotrade.com\/collections\/nmb-4715ms-series-fans.oembed","provider":"yunshuotrade","version":"1.0","type":"link"}