FANUC A05B-2452-C900 Dual Cooling Fan Unit

The FANUC A05B-2452-C900 Dual Cooling Fan Unit is a factory-assembled fan module designed for FANUC industrial robot controllers. It provides forced-air convection for the controller’s internal power supplies, servo amplifiers, and main PCB, maintaining safe operating temperatures during continuous production cycles.

Key Features

• Dual axial fans mounted on a shared bracket for redundant airflow
• Direct replacement part for FANUC A05B-2452 series cooling applications
• Plug-and-play electrical connector for straightforward swap
• Compact metal/ plastic assembly engineered for controller-cabinet mounting
• Low-noise operation suitable for manned production cells

Technical Specifications

Installation Notes

1. Power off the robot controller and disconnect the main supply before replacement.
2. Remove the old fan assembly by releasing the mounting screws and unplugging the electrical connector.
3. Seat the new A05B-2452-C900 in the same position, reconnect the fan connector, and secure the bracket.
4. Restore power and confirm both fans spin up; the controller’s fan-fault alarm should clear.
5. Replace as a complete assembly — do not attempt to repair individual fans in the field.

Common Questions

Which FANUC robots use this fan unit? The A05B-2452-C900 is listed as a cooling fan unit within the FANUC A05B-2452 parts series, typically associated with R-J3 era robot controllers. Verify compatibility with your specific controller serial number before ordering.

Can I replace just one fan instead of the whole assembly? The C900 is sold as a complete dual-fan assembly. Replacing the whole unit ensures both fans have matching airflow and bearing condition, preventing uneven cooling and premature fan-fault alarms.

What voltage does the fan run on? FANUC controller cooling fans operate from the controller’s 24 VDC auxiliary supply — not mains voltage. Do not connect the assembly directly to 200/240 V AC.