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IM6

12kV (210mm)

The on-load switches IM6 series are made up of an epoxy cast resin housing, filled with 150kPa abs. pressured SF6 gas, operative life sealed.

The movable contacts are set up on the insulated rotary shaft, inside the cast resin body. The fixed contacts are mounted directly on the cast resin body.

The rotary motion of the shaft is made by an operating mechanism placed on the front.

The switch has three different positions: close, open and earthed, with an effective locking system that prevents incorrect operations.

The switch IM6 series provides the following remarkable characteristics: long service life, free maintenance of active parts, operating safety, limited overvoltage level.

Main electrical characteristics

Rated voltage

kV

12

Rated power-frequency withstand voltage 50Hz 1min

kV (r.m.s.)

28

Rated lightning impulse withstand voltage

kV (peak)

75

Rated frequency

Hz

50-60

Rated current

A

630
1000

Rated short-circuit current

kA

20 - 3s
25 - 1s

Peak value

kA

50
62,5

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