The 10kV complete equipment of hybrid dc circuit breaker mainly consists of a DC circuit breaker, disconnector, grounding switch, current transformer, voltage transformer, various sensors, current-limiting reactor (if applicable), and control and protection devices. The core component of this system is the hybrid DC circuit breaker.

The DCCB-10/1000-10 10kV hybrid dc circuit breaker adopts the coupling negative voltage DC breaking topology developed by Tsinghua University. It is capable of interrupting a 10kA DC current within 3ms and is primarily used in DC distribution networks, renewable energy DC microgrids, rail transit, and ship power supply systems. This breaker enables the rapid clearance and isolation of faults in DC power grids.