3UG458. insulation monitoring relay
9.4 3UG4582/3UG4583 insulation monitoring relays
3UG4 / 3RR2 monitoring relays
246 Manual, 05/2016, NEB927043002000/RS-AC/004
Relay switching behavior = NO (open-circuit
principle)
With fault storage, manual RESET, 1 x 2 changeover contacts, shutdown
① Test (Y1-Y3)
② Reset (Y2-Y3)
③ Measured value
④ Hysteresis
⑤ Threshold
⑥ Green
⑦ Red
Yellow
t
S
= Time for internal device test after applying the supply voltage
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