Siemens SIRIUS 3UG4 - Wiring Examples

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 di󹪜erent 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
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3-wire AC system/3-wire DC system
3-wire AC system 3-wire DC system
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4-wire AC system
4-wire AC system
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3UG458. insulation monitoring relay.
9.4 3UG4582/3UG4583 insulation monitoring relays
SIRIUS 3UG4 / 3RR2 monitoring relay
Equipment Manual, 07/2021, NEB927043002000/RS-AD/005 193