DC miniature circuit breakers are required for protection of DC circuits in EV battery storage systems, solar PV installations and DC distribution within EV charging infrastructure. Terelec DC MCBs (DGB3-80DC) are available from 300V DC (1-pole) through 600V, 900V and 1200V DC (2, 3 and 4-pole), covering all common DC voltage levels encountered in UK renewable energy and EV charging applications.

DC MCBs must never be substituted for AC MCBs on DC circuits — they are engineered specifically to interrupt direct current safely. These products are also listed in full in our Power Distribution category where complete technical specifications, datasheets and current rating options are available.