1238HH24B-WDB 24V DC Axial Cooling Fan

1238HH24B-WDB 24V DC Axial Cooling Fan is a 24V DC axial cooling fan designed to dissipate heat inside ABB robot controller cabinets, keeping power components and control electronics within their operating temperature range. The 120 × 120 × 38 mm fan operates at approximately 3800 r/min and is commonly fitted as a spare part for ABB robot control systems, helping to maintain stable controller performance and extend component service life.

Product Datasheet

• Brand: ABB (spare part for ABB robot controllers)
• Model: 1238HH24B-WDB
• Product Name: Robot Controller Cooling Fan
• Type: DC axial cooling fan
• Dimensions: 120 × 120 × 38 mm
• Supply Voltage: 24V DC
• Speed: 3800 r/min
• Application: Cooling of ABB robot controller cabinets

Fault Troubleshooting and Common Questions

1. The fan does not run when the controller is powered. Check the fan connector and wiring, the 24V DC supply, and the controller’s power status. Confirm the replacement fan’s voltage and connector type match the original before installation.
2. The fan is noisy or vibrates excessively. Inspect the fan for dust accumulation, damaged blades, or worn bearings. Clean or replace the fan as needed, and ensure it is mounted securely with no obstruction to airflow.
3. The fan runs but the controller still overheats or triggers temperature alarms. Check cabinet airflow, air filters, and ducting for blockage, and verify that the fan rotates at the expected speed. Confirm the replacement unit delivers sufficient airflow for the cabinet’s heat load.
4. Can the 1238HH24B-WDB replace another ABB cooling fan? Not without verification. Compare the full part number, dimensions, supply voltage, current draw, airflow, connector layout, and compatibility with the specific ABB robot controller model.

Safety Precautions

• Isolate power and follow lockout/tagout procedures before removing or installing the fan.
• Use electrostatic discharge protection when handling electronic assemblies.
• Verify the supply voltage and connector wiring before energizing the system.
• Ensure the fan is correctly secured and the airflow direction matches the cabinet design before power-up.
• Use qualified personnel for troubleshooting and maintenance in operating robot systems.

Frequently Asked Questions

Q1: What is the ABB 1238HH24B-WDB? The 1238HH24B-WDB is a 24V DC axial cooling fan used to cool ABB robot controller cabinets, helping to prevent overheating of control and power electronics.

Q2: What are the dimensions of the fan? The fan measures 120 × 120 × 38 mm and operates at approximately 3800 r/min.

Q3: Where is the fan installed? It is installed inside ABB robot controller cabinets to draw heat away from power components and control electronics.

Q4: What should be checked before purchase? Verify the model label, full part number, dimensions, supply voltage, connector configuration, and compatibility with the specific ABB robot controller model.