Siemens 3UG4 - Wiring Examples

3UG458. insulation monitoring relay
9.4 3UG4582/3UG4583 insulation monitoring relays
3UG4 / 3RR2 monitoring relays
256 Manual, 05/2016, NEB927043002000/RS-AC/004
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
n
≤ 250 V AC (15 to 400 Hz) or U
n
≤ 300 V DC.
2-wire AC system
/
2-wire DC system
2-wire AC system 2-wire DC system
3-wire AC system
/
3-wire DC system
3-wire AC system 3-wire DC system
4-wire AC system
4-wire AC system