139266 - Miller 15A 250V Manual Reset Circuit Breaker 139266

Get Your Welder Back to Work

There is nothing more frustrating than a welder that won't power up or an auxiliary outlet that stops working right in the middle of a job. Often, the culprit is a simple safety device doing exactly what it was designed to do. The Miller 139266 Supplementary Protector is the 15-amp manual reset button found on many Miller welding machines. It acts as a circuit breaker, popping out to cut power when the system detects an overload, saving your expensive machine from frying its internal wiring or boards.

If your machine's breaker has tripped, a simple press of the button usually gets you back up and running. However, over time, circuit breakers can become weak, tripping nuisance-style even when the machine is operating within normal parameters. Or, they may fail mechanically and refuse to reset at all. When that happens, replacing it with this genuine Miller 139266 is the only way to ensure your machine operates safely and reliably. Don't risk bypassing safety features or using generic breakers that might not fit or trip at the correct amperage.

This unit is rated for 15 Amps and up to 250 Volts AC, making it a standard component for various power circuits within Miller equipment. It features a single-pole design and a tactile manual reset button. Installation is generally straightforward for those familiar with machine repair, involving standard spade terminal connections. By using this original Miller part, you ensure that the fit is perfect and the protection level matches exactly what the engineers intended for your specific model.

Keep your downtime to a minimum and protect your investment. Whether you are fixing a Millermatic, a Bobcat, or another industrial power source, verify your parts manual calls for part number 139266 and swap out that faulty breaker today. It’s a small part that plays a huge role in keeping your shop productive and safe.