These are either a 175 amp or 250 amp UL listed, high interruption capacity, 160 VDC rated circuit breakers. They are used on the MP and MMP enclosures as the inverter’s DC disconnect switch.
These breakers have front accessible connections using 3/8 bolts and include two tinned copper extensions, each with a 7/16 hole. They were specifically designed to work on the Magnum Panel with Magnum inverters to provide a long enough response time to minimize nuisance tripping.
These breakers are also provided with the MPX extensions.