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Relay switching behavior = NC
(closed-circuit principle)
With fault storage, manual RESET
①
Test (Y1-Y3)
②
Reset (Y2-Y3)
③
Measured value
④
Hysteresis
⑤
Threshold
⑥
Green
⑦
Red
⑧
Yellow
t
= Time for internal device test after applying the supply voltage
S
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
3UG458. insulation monitoring relay
9.3 3UG4581 insulation monitoring relay
223
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