Siemens Panel

Is a Siemens panel rated to have Square D HOM breakers installed?? I seem to remember that the they can have some Square D lines but not sure about HOM.

Nope. Absolutely not. They physically fit, however.

Thanks Marc, did not think so. How about the QO’s?

Square D QO and Cutler-Hammer CH both have unique buss designs.

The Square D HOM and Cutler-Hammer BR along with others share a similar design and while they may not be listed for use in other brands of panels most times they will fit.