VD4 12.16.25 – stationary vacuum circuit breaker for closed switchgears. VD 4 circuit breakers meet the standards of IEC 62271-100, Italian Electrical Committee 17-1 section 1375 and the standards of most industrialized countries. The VD4 series switches use vacuum chambers embedded in epoxy poles. The stationary switch VD4 12.16.25 in the basic version is equipped with a frame and a front protective screen. The drive type is spring with stored energy, which always has a mechanism against “jumping” and is equipped with locks against erroneous operations. There are mounting holes in the lower part of the frame. There is a special terminal block for electrical connections of the auxiliary circuits of the switch. The same accessories are used for all types of switches.
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