VM1 - Vacuum Circuit Breaker with Magnetic Actuator - high duty

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.


Ratings
Rated voltage (kV)1217,524
Rated current (A)... 3150 (1)... 3150... 2500
Rated breaking current (kA)... 50... 40... 25
(1) Breakers for 4000 A with fan cooling.

Documentation and downloads

Article
A vacuum circuit-breaker with permanent magnetic actuator and electronic control(cired 1999, Nice/France)

English - 0.31 MB - pdf

Totally maintenance-free: new vacuum circuit breaker with magnet actuator(Elektrizitätswirtschaft, 11/1997, pp. 1205-1212)

English - 0.50 MB - pdf

Brochure
VM1 Vacuum circuit-breaker with magnetic actuator mechanism

English - 6.76 MB - pdf

Leaflet
VM1 - Vacuum circuit-breaker with magnetic actuator mechanism

English - 2.15 MB - pdf

Movie
VM1 Magnetic actuator assembly (multimedia)

English - 0.96 MB - avi

VM1 Magnetic armature motion (multimedia)

English - 0.64 MB - avi

Presentation
eVM1 - Integrated Vacuum Circuit-Breaker

English - 0.22 MB - pdf

VM1 - Vacuum circuit-breaker

English - 0.27 MB - pdf

VM1 Vacuum circuit-breaker with magnetic actuator mechanism

English - 0.71 MB - pdf

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