Description
The Mitsubishi MMF-06P24SS-FM4 is a high-reliability DC axial cooling fan engineered specifically for thermal management inside Mitsubishi variable frequency drives (VFDs) and industrial automation chassis. Designed to exact Original Engineering specifications, this unit maintains mandatory airflow over internal power semiconductor assemblies, including IGBT modules and electrolytic capacitor banks, preventing thermal shutdown and extending overall inverter operational lifespan.
TECHNICAL SPECIFICATIONS
Manufacturer: Mitsubishi Electric / Melco
Model Number: MMF-06P24SS-FM4
Part Type: Industrial Inverter Axial Cooling Fan
Rated Voltage: 24 VDC
Operating Voltage Range: 20.4 VDC to 27.6 VDC
Rated Current: 0.09 A
Power Consumption: 2.16 W
Frame Dimensions: 60 mm x 60 mm x 25 mm
Mounting Hole Pitch: 50.0 mm ± 0.3 mm
Mounting Hole Diameter: 4.3 mm Ø
Bearing Mechanism: Dual High-Precision Ball Bearings
Airflow Capacity: 0.58 m³/min (20.5 CFM)
Static Pressure: 44.1 Pa
Nominal Speed: 4200 RPM
Noise Level: 28 dB(A)
Termination: 3-Wire Dedicated Connector Harness (Power, Ground, Sensor/Tachometer)
Insulation Class: Class A (105 °C)
Operating Temperature Range: -10 °C to +70 °C
Storage Temperature Range: -20 °C to +85 °C
Expected Service Life: 50,000 Hours at 40 °C (L10 rating)
Weight: 85 g
SYSTEM INTEGRATION & INDUSTRIAL APPLICATION
In variable frequency drive systems such as the Mitsubishi FR-A700, FR-F700, and FR-A800 series, inadequate heatsink ventilation leads to rapid junction-temperature spikes, trigger faults (e.g., Fin Overheat / OH faults), and derated drive output. The MMF-06P24SS-FM4 solves this thermal bottleneck by providing consistent forced-air cooling directly across heat sinks and choke coils. The FM4 sub-index defines the factory-pinned connector and pulse-sensor configuration, allowing the inverter firmware to continuously verify rotational speed. In the event of mechanical obstruction or RPM drop, the drive safely detects the loss of cooling before thermal destruction of the power stage occurs.
PROCUREMENT & COMPATIBILITY
Technical Compatibility: Direct drop-in OEM replacement for designated Mitsubishi Electric VFD heatsink assemblies and power chassis requiring 24VDC 0.09A FM4 pinout architecture.
Supply Reliability: Ready-stock inventory supports emergency machine-down repairs with minimal Lead Time to restore critical processing lines.











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