Frequently Asked Questions
What is NMB-MAT 12038VA-24Q-FA?
NMB-MAT 12038VA-24Q-FA is a brushless DC axial cooling fan identified in industrial parts and cooling fan supplier catalogs. Multiple exact-model records specify a 24 VDC supply, 1.20 A current rating and 120 × 120 × 38 mm frame. Common documented versions have two-wire electrical connections.
What is the rated voltage of 12038VA-24Q-FA?
The nominal voltage is 24 VDC. This value is consistent across multiple exact-model listings. NMB's standard 12038VA-24Q series documentation specifies an operating range of 18.0–27.6 VDC, but that range has not been separately verified for the exact -FA assembly. Confirm the installed fan label and equipment requirements before use.
What are the dimensions of 12038VA-24Q-FA?
The fan has a nominal frame size of 120 mm wide, 120 mm high and 38 mm deep. The standard NMB 12038VA series mechanical drawing shows 105.0 ±0.5 mm mounting hole spacing and holes approximately 4.3 mm in diameter. These measurements provide a series reference; check the actual -FA housing and any connector assembly before replacement.
What is the rated current and electrical power?
Multiple exact-model suppliers report 1.20 A at 24 VDC, corresponding to a calculated electrical power of 28.8 W. Some seller pages also publish 25 W, but the NMB standard -24Q datasheet assigns approximately 25 W to a different 1.04 A configuration. Therefore, 28.8 W is the appropriate calculation from the documented -FA label values, not a separately verified manufacturer operating-power measurement.
What is the fan speed of 12038VA-24Q-FA?
The manufacturer's standard 12038VA-24Q series is rated at 5700 RPM. Some exact-FA suppliers also state 5700 RPM, but another commercial listing specifies 4800 RPM. Because no manufacturer datasheet was located explicitly resolving the exact -FA speed, confirm the complete assembly and actual performance before relying on either figure.
What is the maximum airflow of 12038VA-24Q-FA?
NMB specifies 215.7 CFM, approximately 6.11 m³/min, for standard 12038VA-24Q models. Several commercial -FA product listings report the same figure. However, the exact -FA configuration's current differs from the standard manufacturer model, and the published airflow has not been independently established for that complete suffix. Treat 215.7 CFM as a Q-class reference until confirmed.
What is the maximum static pressure?
The standard NMB 12038VA-24Q series has a maximum static pressure rating of 287 Pa, approximately 1.15 inches of water. Some commercial -FA listings report a similar pressure. An exact -FA manufacturer performance curve has not been located, so the actual pressure-flow characteristics should be confirmed for critical applications. Maximum airflow and maximum pressure are not achieved simultaneously.
What is the noise level of 12038VA-24Q-FA?
The NMB standard 12038VA-24Q series datasheet specifies 63 dB, and several -FA suppliers repeat this figure. Since the exact -FA acoustic rating has not been independently manufacturer-verified, actual installed noise should be evaluated with the specific fan assembly, mounting structure and airflow restrictions.
Does 12038VA-24Q-FA use two wires or four wires?
PcHub, Elecok and several other exact-model listings identify two-wire assemblies, sometimes with a connector. At least one other seller advertises a four-wire version of the same abbreviated part number. For this reason, the number of wires should not be assumed from the base model alone. Verify the actual fan label, connector and wire count before ordering.
Does the fan provide PWM speed control or a tachometer output?
The commonly documented two-wire 12038VA-24Q-FA configuration provides DC power and return and does not have separate tachometer, locked-rotor or PWM signal wires. Other configurations advertised commercially may differ, but their signal specifications have not been verified. Do not substitute a two-wire assembly into equipment requiring a dedicated feedback or PWM control interface without checking compatibility.
What is the difference between 12038VA-24Q-FA and 12038VA-24Q-EAE-0?
Both belong to the NMB 12038VA family and are associated with nominal 24 VDC operation and a 120 × 120 × 38 mm frame. The exact -FA version is commercially documented at 1.20 A, while NMB specifies 1.04 A and approximately 25 W for 12038VA-24Q-EAE-0. The -EAE-0 manufacturer model is specified at 5700 RPM, 215.7 CFM and 287 Pa. These models should not be assumed electrically identical or directly interchangeable based solely on the shared 12038VA-24Q designation.
What should be checked before ordering 12038VA-24Q-FA?
Confirm the exact NMB-MAT model 12038VA-24Q-FA and any assembly identifier, nominal 24 VDC voltage, 1.20 A current marking, 120 × 120 × 38 mm dimensions, mounting hole pattern, actual two-wire or alternative connection arrangement, connector polarity, lead length, rotation direction, airflow direction and equipment compatibility. If the fan is replacing a cooling unit in an inverter or other industrial system, verify available fan power and the equipment's cooling requirements. For applications requiring exact RPM, CFM, static pressure, acoustic noise, ingress protection or life expectancy, obtain documentation for the actual -FA assembly rather than assuming all standard 12038VA-24Q series ratings are identical.