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The Original FANUC A05B-2452-C900 Fan Unit Spare 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
| Item | Detail |
|---|---|
| Part Number | A05B-2452-C900 |
| Product Type | Dual cooling fan unit |
| Series | A05B-2452 |
| Application | FANUC industrial robot controller cooling |
| Fan Configuration | 2 × axial fans on common bracket |
| Electrical | 1-phase, 24 VDC (controller auxiliary supply) |
| Weight | 1.87 kg (4.13 lb) |
| Mounting | Controller cabinet / bracket mounted |
| Origin | Japan |
Installation Notes
- Power off the robot controller and disconnect the main supply before replacement.
- Remove the old fan assembly by releasing the mounting screws and unplugging the electrical connector.
- Seat the new A05B-2452-C900 in the same position, reconnect the fan connector, and secure the bracket.
- Restore power and confirm both fans spin up; the controller’s fan-fault alarm should clear.
- 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.
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