0794000147 - ESAB KHM 600 Replacement Potentiometer Control

Restore Precision Control to Your ESAB Equipment

The ESAB Potentiometer (0794000147) is a critical replacement component designed specifically for the KHM 600 series of welding power sources. In industrial welding environments, the control interface is the welder's primary connection to the machine's capabilities. Over time, potentiometers—the internal components behind your adjustment knobs—can suffer from mechanical wear, dust ingress, or carbon track degradation. This often manifests as "dead spots" on the dial, erratic parameter jumping, or an inability to fine-tune voltage and wire feed speed settings.

Using genuine ESAB repair parts is essential for maintaining the integrity of your equipment. This potentiometer is manufactured to the exact electrical specifications required by the KHM 600's control board. A generic potentiometer from an electronics supplier may have the wrong resistance value, power rating, or taper (linear vs. logarithmic), which can lead to non-linear adjustments or even damage to the control circuit. By installing the 0794000147, you ensure that the values displayed on your panel match the actual output of the machine.

Installation of this component typically involves accessing the rear of the front control panel. The unit is built to fit the existing mounting footprint perfectly, ensuring the shaft aligns correctly with the external knob and the terminals align with the wiring harness. Whether you are a maintenance technician at a large fabrication facility or a specialized repair shop, stocking OEM parts like this ensures minimal downtime and maximum reliability for high-performance welding operations.

Technical Reliability

ESAB engineers their components to withstand the rigors of heavy industry. This potentiometer features a robust construction designed to resist the vibration and thermal cycling common in welding environments. Restoring your machine with this part brings back the smooth, tactile feedback and reliable output control that professional welders demand.