Description
The NMB 1608KL-05W-B39 is a high-reliability DC axial cooling fan engineered specifically for thermal management in Fanuc CNC control systems, servo amplifiers, and industrial drives. Manufactured by MinebeaMitsumi, this compact 40x40x20mm unit delivers precise airflow to prevent thermal throttling in critical automation components. Featuring a built-in 3-wire locked-rotor alarm detection system, it provides real-time feedback to the machine controller, instantly halting operations if fan failure is detected to prevent catastrophic overheating of expensive logic boards.
Technical Specifications:
Manufacturer: NMB Technologies (MinebeaMitsumi)
Model Number: 1608KL-05W-B39
System Compatibility: Fanuc CNC Systems and Servo Drives
Dimensions: 40mm x 40mm x 20mm
Rated Voltage: 24V DC
Operating Voltage Range: 10.0V to 27.6V
Rated Current: 0.07A
Power Consumption: 1.68W
Nominal Speed: 6500 RPM
Maximum Airflow: 0.21 m³/min
Static Pressure: 40.0 Pa
Noise Level: 25.5 dB(A)
Bearing System: Precision Dual Ball Bearing
Termination: 3-Wire Lead Wires
Sensor Type: Locked Rotor Alarm Signal
Operating Temperature: -10°C to +70°C
Housing Material: UL94V-0 Flammability Rated Plastic
Impeller Material: UL94V-0 Flammability Rated Plastic
Weight: 25g
Industrial Application and Lifecycle Value:
In high-duty-cycle machining environments, maintaining optimal operating temperatures for control electronics is non-negotiable. The 1608KL-05W-B39 is deployed directly within Fanuc system enclosures where space is severely restricted but heat dissipation requirements are high. The integration of dual ball bearings ensures an extended operational lifespan exceeding 50,000 hours, significantly reducing maintenance intervals. Technical Compatibility is guaranteed for direct drop-in replacement in legacy and modern Fanuc panels. By utilizing Original Engineering components, facilities ensure seamless integration with existing diagnostic protocols. We maintain an optimized supply chain to minimize Lead Time, ensuring your production lines experience minimal downtime during critical cooling system replacements.









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