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Black square frame fan 90 mm wide 38 mm deep with red and black wires

Fans

Fans 3615KL-05W-B50 case fan 90×90×38 mm 24 V 3400 RPM

SKU CH-850A-PTNNY MPN 3615KL-05W-B50

A 90 mm square, 38 mm deep 24 V DC fan moves 40.2 CFM at 3400 RPM with 35.0 d-BA noise

  • 90×90×38 mm footprint fits tight industrial enclosures
  • 24 V DC operation suits rail, medical and EV systems
  • 3400 RPM delivers 40.2 CFM for targeted component cooling
  • 0 dBA noise level keeps rack environments quiet
  • 18 cm lead with colour-coded wires speeds installation

Compact 24 V industrial fan

The 90 × 90 × 38 mm frame fits tight enclosures that need forced airflow. Two leads with an 18 cm reach connect directly to a 24 V DC rail. Rated current is 0.32 A and power draw is 3.12 W. The fan spins at 3400 RPM and moves 40.2 CFM at 40.2 Pa static pressure.

Build integration and clearance

Mounting holes match the 90 mm square pattern used in many drive bays and inverter housings. The 38 mm depth leaves room for finger guards or filters without increasing the overall stack height. Black and red wires simplify polarity identification during wiring. Acoustic output is 35.0 dBA, low enough for noise-sensitive racks.

Upgrade path and fit limits

Replaces worn NMB Mepia 3615 series units in ACS800 drives, medical carts and rail-vehicle cabinets where the original 24 V supply is fixed. The jump is worth it when the existing fan has dropped below rated speed or developed bearing noise. Not suited for builds that require PWM speed control, 12 V operation or a four-pin connector.

How it compares

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

Price $35.99
Pricier than about 82% of the 8,339 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How long can the 3400 RPM motor run continuously before hitting its thermal limit?

The 24 V motor draws 0.32 A for 3.12 W, a low power level that typically allows continuous operation without a hard thermal cutoff.

What noise and heat output should I expect when the fan runs all day at 3400 RPM?

Rated noise is 35.0 d-BA at full speed; heat dissipation equals the 3.12 W electrical input, which is modest for a 90×90×38 mm frame.

What connector or wiring must my system already provide for this fan to work?

The fan has a two-wire lead, 18 cm long, with red for positive and black for negative, requiring a 24 V DC source.

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