Frequently Asked Questions
What is NMB-MAT 3610KL-05W-B49?
NMB-MAT 3610KL-05W-B49 is a 24 VDC brushless axial cooling fan from the NMB Technologies 3610KL series. Manufacturer-documented full-suffix versions have a 92 × 92 × 25 mm frame, 2850 RPM nominal speed and 47.6 CFM maximum airflow.
What is the rated voltage of 3610KL-05W-B49?
The nominal rated voltage is 24 VDC. NMB specifies an operating voltage range of 10.0-27.6 VDC for the documented B49 variants. Verify the fan label, power supply and connection polarity before installation.
What are the dimensions of 3610KL-05W-B49?
The fan measures 92 mm wide, 92 mm high and 25 mm deep. It belongs to the 9225 axial cooling fan size class. Check the complete model suffix because rib and flange mounting configurations may differ even when frame dimensions are identical.
What is the rated current and power consumption?
NMB specifies 0.12 A rated current and approximately 2.9 W input power for the manufacturer-documented 3610KL-05W-B49-B00 and -B50 variants. These values are also shared by other documented B49 configurations. Verify the exact fan label before installation.
What are the fan speed and maximum airflow?
The manufacturer lists 2850 RPM nominal fan speed and 47.6 CFM maximum airflow, equivalent to approximately 1.35 m³/min. The airflow rating describes the fan's specified performance rather than the volume of air that will necessarily pass through a particular equipment enclosure.
What is the maximum static pressure of 3610KL-05W-B49?
The manufacturer specifies a maximum static pressure of 37.2 Pa, equivalent to approximately 0.15 inches of water. Actual airflow varies according to the resistance of vents, filters, heatsinks and other components in the cooling path.
What bearing type does 3610KL-05W-B49 use?
The documented legacy B49 versions use ball bearings. NMB specifies an L10 expected life of 50,000 hours at 25°C. This is a statistical bearing-life rating and does not guarantee the operating life of every individual fan.
Does 3610KL-05W-B49 have three wires?
Common manufacturer-documented monitoring-signal versions use three-wire leads, with two conductors for DC power and another for a fan monitoring signal. Connector type, wire colors and signal assignment should be verified against the complete model suffix and the existing equipment wiring.
What is the difference between 3610KL-05W-B49-B00 and 3610KL-05W-B49-B50?
Both manufacturer-documented versions share a nominal 24 VDC rating, 0.12 A current, 2850 RPM speed, 47.6 CFM airflow and 92 × 92 × 25 mm dimensions. The -B00 version provides a locked-rotor output, while the -B50 version provides a tachometer output. Manufacturer product records also identify different mounting configurations, so the versions should not be treated as interchangeable without checking the equipment requirements.
What is the difference between a locked-rotor output and a tachometer output?
A locked-rotor output indicates a fan rotation failure or locked condition according to the manufacturer's signal specification. A tachometer output provides pulses associated with fan rotation for speed monitoring. These functions serve different monitoring circuits, and the receiving equipment must support the output type selected.
Is NMB-MAT 3610KL-05W-B49 discontinued?
NMB identifies documented full-suffix variants including 3610KL-05W-B49-B00, 3610KL-05W-B49-B50, 3610KL-05W-B49-D00 and 3610KL-05W-B49-E50 as end-of-life products. Manufacturer-listed replacements exist, but they have different electrical and performance specifications. The appropriate replacement depends on the full legacy suffix and installation requirements.
What should be checked before ordering 3610KL-05W-B49?
Verify the complete model 3610KL-05W-B49 and any additional -B00, -B50, -D00, -E50 or other suffix, nominal 24 VDC supply, 0.12 A rated current, 92 × 92 × 25 mm dimensions, 2850 RPM nominal speed, 47.6 CFM maximum airflow, 37.2 Pa maximum static pressure, ball bearing construction, connector type, wire count, locked-rotor or tachometer monitoring requirements and rib or flange mounting configuration. When considering a manufacturer-listed replacement, compare the electrical ratings, airflow, noise, expected life and mechanical compatibility before installation.