
3UG458. insulation monitoring relay
9.4 3UG4582/3UG4583 insulation monitoring relays
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
243
9.4.2.1
Function diagrams
3UG4582 function diagrams
Relay switching behavior = NC
(closed-circuit principle)
Without fault storage, autoreset
①
Test (Y1-Y3)
②
Reset (Y2-Y3)
③
Measured value
④
Hysteresis
⑤
Threshold
⑥
Green
⑦
Red
⑧
Yellow
t
S
= Time for internal device test after applying the supply voltage