BR-DC175 and BR-DC250 are the same DC breakers installed in the MP (Magnum Panel) and MMP (Mini Magnum Panel) system enclosures, and included with the MPX extensions.
Breakers function as the inverter’s DC disconnect switch and can be used as the battery-to-inverter circuit protection in most installations. These breakers were specifically designed and tested to work with Magnum inverters to provide the delay time needed to minimize nuisance breaker tripping.