0004676360 - ESAB ATHC4 Replacement Main Control Board

Get Your CNC Plasma Table Back in Action

Is your plasma table acting up? If your torch height control is erratic or completely non-functional, the culprit might be the main control board. The ESAB ATHC4-MB Main Board (0004676360) is the direct replacement part you need to fix your ESAB ATHC4 system. Torch height control is the secret sauce of good plasma cutting; it saves your consumables from burning up too fast and keeps your bevel angles true. Without a working brain in your ATHC unit, you are stuck running manual mode or dealing with constant head crashes.

This isn't a generic aftermarket board that might fry your motors; it is the official ESAB part. It fits right into the chassis of your ATHC4 controller and plugs into your existing harness. We know that downtime costs money—every hour your table is down is an hour of lost production. Swapping out a faulty main board is often the fastest way to troubleshoot deep electrical issues within the height control box. This board manages everything from the initial height sensing to the cutting voltage regulation.

Designed for durability, this board helps you get back to those smooth, dross-free cuts you expect from your ESAB equipment. It manages the communication between your CNC interface and the lifter station. If you have been experiencing "diving" torches, failure to retract, or loss of arc voltage signal, and you have ruled out the cables and sensors, this main board is likely the fix. Keep your operation running smoothly and protect your expensive torch parts by ensuring your height control system is operating with a healthy main board.