Vacuum circuit breakers are widely used in medium-voltage power distribution systems due to their effective arc quenching and compact design. They are commonly applied in utility substations, industrial plants, commercial buildings, and mining operations.

One of the key uses of vacuum circuit breakers is in the protection of electrical equipment such as transformers, motors, and busbars. They can isolate faults quickly, minimizing damage and ensuring the safety of surrounding equipment and personnel. Their performance in repetitive switching duties makes them ideal for systems that require frequent opening and closing operations.

In environments where cleanliness and reduced fire risk are priorities, vacuum circuit breakers are preferred due to the absence of flammable insulating materials. Their sealed interrupter design also minimizes the risk of external contamination, which is important in dusty or corrosive environments.