KRM161x - Isolated AC Insulation Trip Relay
- Insulation relay for non grounded systems
- 0-660V Line Voltage. Up to 1400V with HV adapter
- Non isolated analogue output (C-version)
- "IDV" measuring principle
KRM161B/C monitors resultant insulation level between a non-grounded
single or three phase AC mains and its protective earth. It can monitor
both live or non-live network.
The trip level is factory set and relay will operate after a delay of
approximately two seconds. Relay is fail-safe and energises when
powered. Link terminal 6 and 10 to make a non-latching relay.
Only ONE KRM16x can be connected to each IT-system.
KRM161B/C unit uses a superimposed DC monitoring voltage and so only one unit can be connected to each isolated system.
