Technical specifications, features, applications and purchasing information.
| Brand | NMB-MAT |
| Model Number | 4715MS-20T-B50 |
| Product Category | AC Axial Fan |
| Manufacturer | NMB Technologies Corporation / MinebeaMitsumi |
| Product Series | 4715MS |
| Current Manufacturer Series | 11938MB |
| Fan Type | AC Tubeaxial Cooling Fan |
| Manufacturer-Documented Standard Model | 4715MS-20T-B50-B00 |
| Additional Documented Configuration | 4715MS-20T-B50-BE0 |
| Standard -B00 Termination | Two Electrical Power Terminals |
| Special -BE0 Termination | Three-Terminal Version Including an Earth Terminal, According to MinebeaMitsumi Model-Conversion Documentation |
| Electrical Supply Type | Alternating Current |
| Nominal Voltage | 200 VAC |
| Rated Frequency | 50 / 60 Hz |
| Starting Voltage | 130 VAC |
| Frame Dimensions (W × H × D) | 119 × 119 × 38 mm |
| Frame Width | 119 mm |
| Frame Height | 119 mm |
| Frame Depth | 38 mm |
| Common Fan Size Class | 120 × 120 × 38 mm Class; Actual Manufacturer Frame Dimensions Are 119 × 119 × 38 mm |
| Manufacturer Frame Tolerance | 119.0 ±0.5 mm |
| Manufacturer Depth Tolerance | 38.0 ±0.5 mm |
| Rated Current at 50Hz | 0.140 A |
| Rated Current at 60Hz | 0.120 A |
| Input Power at 50Hz | 15 W |
| Input Power at 60Hz | 13 W |
| Input Power Tolerance | +10% / -20% in Manufacturer Documentation |
| Nominal Fan Speed at 50Hz | 2600 RPM |
| Nominal Fan Speed at 60Hz | 2900 RPM |
| Maximum Airflow at 50Hz | 89.3 CFM |
| Maximum Airflow at 60Hz | 103.6 CFM |
| Maximum Airflow at 50Hz in Metric Units | 2.50 m³/min |
| Maximum Airflow at 60Hz in Metric Units | 2.90 m³/min |
| Maximum Static Pressure at 50Hz | 64.7 Pa |
| Maximum Static Pressure at 60Hz | 76.5 Pa |
| Maximum Static Pressure at 50Hz in Inches of Water | 0.26 in H₂O |
| Maximum Static Pressure at 60Hz in Inches of Water | 0.31 in H₂O |
| Noise Level at 50Hz | 37 dB |
| Noise Level at 60Hz | 41 dB |
| Motor Type | Shaded-Pole Induction Motor |
| Motor Protection | Impedance Protection |
| Bearing Type | Ball Bearing |
| Manufacturer-Listed Life Expectancy | 100,000 Hours L10 at 25°C |
| Legacy Distributor Life Reference | 50,000 Hours at 25°C in DigiKey Attributes; Different from NMB Current L10 Documentation |
| Approximate Weight | 550 g in Manufacturer Documentation |
The 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.
The 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.
At 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.
NMB 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.
The 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.
NMB 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.
We 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.
What is NMB-MAT 4715MS-20T-B50?
NMB-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.
Is 4715MS-20T-B50 an AC fan or a DC fan?
It 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.
What are the rated voltage and operating frequency?
The 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.
What are the physical dimensions and mounting specifications?
The 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.
What are the current and input power at 50Hz and 60Hz?
At 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.
What is the fan speed of 4715MS-20T-B50?
The 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.
What are the maximum airflow and static pressure ratings?
At 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.
What is the noise level of 4715MS-20T-B50?
NMB 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.
What motor and bearing type does 4715MS-20T-B50 use?
The 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.
What is the difference between 4715MS-20T-B50-B00 and 4715MS-20T-B50-BE0?
Both 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.
What is the difference between 4715MS-20T-B50 and 4715MS-22T-B50?
The 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.
Is 4715MS-20T-B50 discontinued, and what should be checked before ordering?
NMB 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.
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| Brand | NMB-MAT |
| Model Number | 4715MS-20T-B50 |
| Product Category | AC Axial Fan |
| Manufacturer | NMB Technologies Corporation / MinebeaMitsumi |
| Product Series | 4715MS |
| Current Manufacturer Series | 11938MB |
| Fan Type | AC Tubeaxial Cooling Fan |
| Manufacturer-Documented Standard Model | 4715MS-20T-B50-B00 |
| Additional Documented Configuration | 4715MS-20T-B50-BE0 |
| Standard -B00 Termination | Two Electrical Power Terminals |
| Special -BE0 Termination | Three-Terminal Version Including an Earth Terminal, According to MinebeaMitsumi Model-Conversion Documentation |
| Electrical Supply Type | Alternating Current |
| Nominal Voltage | 200 VAC |
| Rated Frequency | 50 / 60 Hz |
| Starting Voltage | 130 VAC |
| Frame Dimensions (W × H × D) | 119 × 119 × 38 mm |
| Frame Width | 119 mm |
| Frame Height | 119 mm |
| Frame Depth | 38 mm |
| Common Fan Size Class | 120 × 120 × 38 mm Class; Actual Manufacturer Frame Dimensions Are 119 × 119 × 38 mm |
| Manufacturer Frame Tolerance | 119.0 ±0.5 mm |
| Manufacturer Depth Tolerance | 38.0 ±0.5 mm |
| Rated Current at 50Hz | 0.140 A |
| Rated Current at 60Hz | 0.120 A |
| Input Power at 50Hz | 15 W |
| Input Power at 60Hz | 13 W |
| Input Power Tolerance | +10% / -20% in Manufacturer Documentation |
| Nominal Fan Speed at 50Hz | 2600 RPM |
| Nominal Fan Speed at 60Hz | 2900 RPM |
| Maximum Airflow at 50Hz | 89.3 CFM |
| Maximum Airflow at 60Hz | 103.6 CFM |
| Maximum Airflow at 50Hz in Metric Units | 2.50 m³/min |
| Maximum Airflow at 60Hz in Metric Units | 2.90 m³/min |
| Maximum Static Pressure at 50Hz | 64.7 Pa |
| Maximum Static Pressure at 60Hz | 76.5 Pa |
| Maximum Static Pressure at 50Hz in Inches of Water | 0.26 in H₂O |
| Maximum Static Pressure at 60Hz in Inches of Water | 0.31 in H₂O |
| Noise Level at 50Hz | 37 dB |
| Noise Level at 60Hz | 41 dB |
| Motor Type | Shaded-Pole Induction Motor |
| Motor Protection | Impedance Protection |
| Bearing Type | Ball Bearing |
| Manufacturer-Listed Life Expectancy | 100,000 Hours L10 at 25°C |
| Legacy Distributor Life Reference | 50,000 Hours at 25°C in DigiKey Attributes; Different from NMB Current L10 Documentation |
| Approximate Weight | 550 g in Manufacturer Documentation |
The 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.
The 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.
At 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.
NMB 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.
The 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.
NMB 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.
We 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.
What is NMB-MAT 4715MS-20T-B50?
NMB-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.
Is 4715MS-20T-B50 an AC fan or a DC fan?
It 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.
What are the rated voltage and operating frequency?
The 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.
What are the physical dimensions and mounting specifications?
The 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.
What are the current and input power at 50Hz and 60Hz?
At 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.
What is the fan speed of 4715MS-20T-B50?
The 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.
What are the maximum airflow and static pressure ratings?
At 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.
What is the noise level of 4715MS-20T-B50?
NMB 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.
What motor and bearing type does 4715MS-20T-B50 use?
The 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.
What is the difference between 4715MS-20T-B50-B00 and 4715MS-20T-B50-BE0?
Both 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.
What is the difference between 4715MS-20T-B50 and 4715MS-22T-B50?
The 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.
Is 4715MS-20T-B50 discontinued, and what should be checked before ordering?
NMB 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.
