Insulation monitoring relay KRM161x seriestrip circuitACDIN rail
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Characteristics
- Measured/monitored value
- insulation, trip circuit
- Network
- AC
- Mounting
- DIN rail
- Trigger voltage
Max.: 415 V
Min.: 100 V
Description
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.
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