DC MCB (DC miniature circuit breaker) plays a key role in the power system.
First of all, DC MCB is a common switch in the control circuit, which mainly has two functions: on-off circuit and protection circuit. It adopts a special arc extinguishing and current limiting system, which can quickly disconnect the fault current of the DC distribution system, thereby protecting the automatic device from overload, short circuit and other fault hazards.
Specifically, the role of DC MCB includes:
1. On-off circuit: DC MCB, as a switching device, can connect or disconnect the circuit to achieve normal transmission and stop of power.
2. Protection circuit: When abnormal conditions such as overcurrent or short circuit occur in the circuit, DC MCB can quickly cut off the circuit to avoid equipment damage or safety accidents.
3. High safety: DC MCB usually has the characteristics of thermoplastic shell, full line inlet, impact resistance, recyclability and self-extinguishing, ensuring safety during use.
In summary, DC MCB plays a vital role in the power system and is one of the important equipment to ensure the safe and stable operation of the power system.
