break-break contact

break-break-make contact

break-make-break contact

126 kV double-break vacuum circuit breaker

126 single break

accelerated break-down test

accommodation structure-slope break zone

activating break system

active break point

adjoining rock break

air break

air break circuit breaker

air break disconnecting switch

air break switch

air break switch {= ABS}

Air Switch，Air-break Switch

air-break circuit breaker

air-break circuit-breaker

air-break contactor