These are for parts and or recycling. Watch video for information installed and used since 2004 100A was working until recently. It tripped twice in the same day then several days later without it tripping our electrician was here so just in case I had him swap it out. Lot of Square D Type HOM circuit breakers including 20A and 100A models. Used condition with normal signs of handling. Ideal for electrical panel maintenance and upgrades.