Vacuum circuit-breakers of type VM1 find universal applications in medium voltage range. Their innovative permanent magnetic actuator facilitates a drastic reduction in the number of parts, thus high reliability and sturdiness. An electronic controller with sensors monitors all the functions of the circuit-breaker and its own functional reliability. VM1 technology provides the optimum solution for extremely high number of switching operations including freedom from maintenance as a standard feature.
|Rated voltage (kV)||12||17,5||24|
|Rated current (A)||... 3150 (1)||... 3150||... 2500|
|Rated breaking current (kA)||... 50||... 40||... 25|
(1) Breakers for 4000 A with fan cooling.