DC Mini Circuit Breaker

ETEK Solar DC Mini Circuit Breakers (DC MCB) are purpose-built for high-voltage DC circuit protection in solar PV systems, battery energy storage systems (BESS), EV chargers, and DC UPS installations. Unlike AC breakers, our DC MCBs incorporate permanent magnets and specialized arc-extinguishing chambers to interrupt persistent DC arcs safely.

Rated up to 1000V DC / 1200V DC, these breakers are available in 1P, 2P, and 4P versions with currents from 1A to 63A. They provide fast, reliable disconnection under overload and short-circuit conditions, making them essential protection devices for PV string circuits, combiner boxes, and lithium battery racks. Designed to IEC/EN 60947-2, ETEK Solar DC MCBs ensure safe isolation of DC power sources.