Frequently Asked Questions
What is NMB-MAT 4710NL-05W-B30?
NMB-MAT 4710NL-05W-B30 is a 24 VDC axial cooling fan from the NMB 4710NL series. The manufacturer publishes specifications for complete B30-D00 and B30-P00 versions, both with a nominal 119 × 119 × 25 mm frame and standard 2050 RPM performance. Some commercial assemblies carry a different current marking, so the complete fan suffix should be verified.
Is 4710NL-05W-B30 an AC fan or DC fan?
It is a DC axial cooling fan. Multiple manufacturer and model-specific supplier references identify a nominal 24 VDC supply. It should not be connected directly to a 115 VAC, 220 VAC or 230 VAC power source or replaced with an AC fan merely because the external dimensions are similar.
What is the rated voltage and operating voltage range?
The nominal rated voltage is 24 VDC. The NMB 4710NL manufacturer catalog specifies an operating voltage range of 10.0–27.6 VDC for standard 4710NL-05W-B30-D00 and -P00 configurations. The permissible range for a commercially marked 0.16 A assembly has not been independently established and should be confirmed before use outside nominal voltage.
Is the rated current 0.12A or 0.16A?
The historical NMB 4710NL manufacturer datasheets specify 0.12 A for standard 4710NL-05W-B30-D00 and -P00. Several current commercial listings instead identify 0.16 A for fans labeled 4710NL-05W-B30, including a D00 assembly. Both figures are documented, but they are not interchangeable without further clarification. Use the current marking and complete part number on the actual fan when assessing electrical compatibility.
What is the power consumption of 4710NL-05W-B30?
The manufacturer catalog lists 2.88 W for its standard 24 VDC, 0.12 A B30 configurations. At the alternative supplier-reported 0.16 A marking, 24 VDC multiplied by 0.16 A gives 3.84 W calculated power. The latter is not a separately verified manufacturer running-power specification. Confirm the assembly's electrical rating before selecting a power supply.
What are the dimensions and mounting-hole spacing?
The standard nominal size is 119 mm wide, 119 mm high and 25 mm deep. The manufacturer mechanical drawing gives a depth of 25.5 ±0.5 mm, a frame width of 119.0 ±0.8 mm, 105.0 ±0.5 mm mounting-hole center spacing and 4.3 ±0.2 mm mounting holes. The manufacturer also documents different rib-type and flange-type frame configurations.
What is the fan speed of 4710NL-05W-B30?
NMB's 4710NL series catalogs specify 2050 RPM for standard 4710NL-05W-B30-D00 and -P00 models at nominal 24 VDC. This is the manufacturer's documented B30 performance reference. Where a fan is marked 0.16 A or has an equipment-specific suffix, verify whether the standard speed rating applies to that assembly.
What is the maximum airflow and static pressure?
The manufacturer specifies 80 CFM maximum airflow and 0.14 inches of water maximum static pressure for the standard 4710NL B30 configuration. These are separate endpoints on the pressure-airflow curve and are not achieved simultaneously. Installed airflow depends on ventilation openings, filters, heatsinks and other system restrictions. The exact performance of commercially documented 0.16 A assemblies has not been independently confirmed.
What is the acoustic noise level?
The manufacturer's standard B30 catalog noise rating is 35 dBA. This value corresponds to the documented 2050 RPM configuration. Installed noise may change with mounting vibration, guards, airflow restrictions and enclosure resonance. The exact acoustic rating of a modified or equipment-specific assembly should be verified independently.
Does 4710NL-05W-B30 use two wires or three wires?
The standard manufacturer's 4710NL documentation describes two power leads, red and black, using AWG24 UL1007 wire. Multiple model-specific commercial listings also identify two-wire configurations, including some with two-pin connectors. One seller offers optional three-wire and other custom versions, but the electrical signal arrangements of those variants have not been manufacturer-verified. Confirm the complete assembly and connector before ordering.
What is the difference between 4710NL-05W-B30 and 4710KL-05W-B30?
Both are NMB 24 VDC axial fan models with approximately 119 × 119 × 25 mm frame dimensions, but their manufacturer specifications differ. The standard 4710NL-B30 catalog specifies 0.12 A, 2050 RPM, 80 CFM and 35 dBA. The manufacturer documents the later 4710KL-05W-B30-B00 at 0.15 A, 2200 RPM, 88.2 CFM and 35 dB. The bearing, frame and termination arrangements should also be compared. A historical series-transition reference does not establish complete electrical or cooling equivalence for every model suffix.
Is 4710NL-05W-B30 discontinued, and what should be checked before ordering?
The 4710NL is a legacy NMB fan series, and historical industry documentation describes a transition toward the 4710KL family. However, an exact-model current manufacturer lifecycle statement and a verified direct replacement for every 4710NL-05W-B30 assembly were not established. Before ordering, confirm the complete suffix, nominal 24 VDC supply, actual 0.12 A or 0.16 A current marking, 119 × 119 × 25 mm frame, mounting style, 105 mm mounting-hole spacing, red and black power wiring, connector, cable length, rotation and airflow direction. Where guaranteed airflow, static pressure, bearing life or environmental limits are required, request documentation for the precise assembly rather than applying the ratings of a different 4710KL fan.