Tripping unit IM is used as a part of an arc protection system, and it provides five fast tripping outputs. In switchgears with multiple incomming feeders it is necessary to disconect all circuit breakers that are feeding electric arc. For this purpose, arc monitors ZELK-2 or ZELK-3 are connected to tripping unit IM with five fast statical outputs.

• five fast statical outputs
• auxiliary supply not required
• galvanical insulation 2,5kV between all insulated circuits
• small dimensions and simple mounting on rail DIN EN 50022-35

 
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