KRM162x - Earth Leakage Trip Relay AC
- Earth leakage relay for earthed AC systems
- Non isolated analogue output (C-version)
- "RCT" measuring principle
Description
The KRM162B or KRM162C measures the insulation, directly in milliamps, of earthed
AC systems. But it can also be used in IT-systems together with a
constant impedance module type MML150xx.
The instrument is fed from a suitable Core Balance current transformer
(CBCT see separate datasheet).
Standard relay has a 0-150mA range with a
factory set trip level of 100mA.
Larger ranges and trip levels are
available, typically ranges is 0-500mA, 0-1A, 0-2A, 0-5A and 0-10A.
Relay is fail-safe and energises when powered. Link terminal 6 and 10 to make a non-latching relay.
All current carrying conductors must pass through the core balance CT.
Metal sheaths or braiding on any cables must NOT be passed through the
CBCT.
