Are Murray and Siemens Circuit Breakers Interchangeable

Siemens and Murray are indeed the same company. The parts are physically interchangeable (and AFAICT, identical except the label), but Murray breakers are technically not certified for the Siemens panels, and thus not allowed by NEC code. … Siemens purchased Murray a few years ago.

What circuit breakers are interchangeable with Murray?

You can replace Murray CBs with Air, Square D, and Cutler-Hammer Circuit Breakers. However, for an optimal use of the original Murray Load Centers, the best breaker brand substitute is Siemens. Not only is Siemens known for their quality products, but they are also the UL-listed brand for Murray.

Are breaker brands interchangeable?

The circuit load will determine the breaker size you need – and you’ll need to make sure to get the right brand, as all breakers are not interchangeable. … Brand: Always install the correct brand of breakers in your breaker panel. While some breakers are interchangeable, many are not, even if they look the same.