951321 - ESAB 275V Metal Oxide Varistor Surge Protector

Restore and Protect Your Welder

When your welding machine stops working after a storm or a generator hiccup, a blown varistor is often the culprit. The ESAB 951321 Varistor (275V) is the sacrificial shield designed to take the hit so your expensive main board doesn't have to. This small but mighty component absorbs high-voltage spikes, preventing them from frying the sensitive brain of your welder. If you open your machine and see a cracked, burnt, or discolored disc-shaped component on the board, replacing it with this genuine ESAB part is often the fix you need to get back to work.

Using genuine ESAB parts like the 951321 ensures your machine retains its original reliability. While it might be tempting to grab a generic electronic part, the specific voltage rating and energy handling capability of this 275V varistor are tuned to ESAB's design requirements. Installing the wrong varistor could leave your machine unprotected against the next surge or cause nuisance tripping. This replacement part is a cost-effective solution that can save you the price of a new circuit board or even a new machine.

Whether you are a professional repair shop or a DIY welder with electronics experience, having the right parts makes the job easier. This varistor is compatible with various ESAB models—check your machine's parts manual or the component markings to confirm fitment. Keep your equipment running smoothly and protect your investment with OEM quality components.