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Black 120 mm square case fan with three-wire power connector

SunnyStar Co., Ltd

SunnyStar Co., Ltd MMF-12B24DH-RA0 24V 0.18A 3Wire 120mm case fan

SKU CH-9Y9T-4B6CR

A 24 V DC case fan with ball bearing and three-wire connector, measuring 120 mm by 120 mm by 25 mm

  • Bearing designBall
  • Power input connector3 Wires
  • LED lightingNon-LED
  • Product typeCase Fan
  • Product colorBlack
  • Key featuresDC square Cooler
  • Ball-bearing design extends service life
  • 24 V 0.18 A three-wire supply simplifies wiring
  • 120 mm square frame fits standard 12025 mounts
  • 25 mm thickness matches common chassis slots
  • Non-LED black finish keeps builds understated

24 V DC Case Fan for Inverters

This 120 mm square fan runs on a 24 V DC supply drawing 0.18 A through a three-wire lead. It is built for inverter cabinets and similar equipment that need steady airflow in a compact frame. The ball-bearing motor and non-LED black housing suit industrial environments where reliability matters more than lighting.

Ball Bearing Thermals and Low Power Draw

The ball bearing reduces friction so the fan spins consistently without the rattle that sleeve bearings develop over time. At 0.18 A the current draw stays modest on a 24 V rail, keeping heat contribution inside the enclosure low. No PWM or voltage-control details are provided, so plan for constant-speed operation.

120 mm Square Frame with Three-Wire Lead

The 120 mm by 120 mm by 25 mm footprint matches the common 12025 mounting pattern used in many inverter housings. Three wires supply power and a tachometer signal for monitoring, but no PWM control wire is present. Verify that your enclosure has the matching screw holes and a 24 V DC source before fitting.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $88.99
Pricier than about 90% of the 8,339 comparable items (median $19.99).

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Specifications

Product
Product lineMMF-12B24DH-RA0
Model nameMMF-12B24DH-RA0
Product typeCase Fan
Product colorBlack
Power
Power input connector3 Wires
Size & build
Bearing designBall
Product dimensions120 mm*120 mm*25 mm
More details
LED lightingNon-LED

Questions about this item

How do I connect the 3-wire power connector to a 24V source without damaging the fan?

Match the three wires to the 24V supply, ground, and tachometer pins exactly as shown on the housing; reversing the supply and ground will burn the motor.

When will the ball bearing need replacement under continuous 24V operation?

Ball bearings typically run for tens of thousands of hours; listen for increased rumble or vibration as the first sign that service is due.

At what point does the 0.18A current draw limit sustained airflow in a hot chassis?

The fixed 0.18A at 24V caps the motor torque, so static pressure drops first when the chassis temperature pushes the fan against its thermal ceiling.

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