Wiring Examples - Siemens 3UG4 User Manual

3UG458. insulation monitoring relay
9.4 3UG4582/3UG4583 insulation monitoring relays
9.4.5.2

Wiring examples

Wiring examples 3UG4582 insulation monitoring relays
Measuring inputs L+ and L- can be connected to any conductor (phase or N conductor).
Measuring inputs L+ and L- must always be connected to different conductors.
The rated system voltage is U
2-wire AC system / 2-wire DC system
2-wire AC system
3-wire AC system / 3-wire DC system
3-wire AC system
4-wire AC system
4-wire AC system
256
≤ 250 V AC (15 to 400 Hz) or U
n
2-wire DC system
3-wire DC system
≤ 300 V DC.
n
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004