Wiring Examples (3Ug462.-.Aa30) - Siemens SIRIUS 3UG4 Equipment Manual

3UG4621/3UG4622 current monitoring relays
7.6 Circuit diagrams
7.6.3

Wiring examples (3UG462.-.AA30)

Note
If this arrangement is not complied with, the monitoring relay may be destroyed and the short-
circuit current may damage the plant!
Operation with a separate control circuit and load current circuit
• single-phase
24 V AC/DC
• three-phase
24 V AC/DC
Operation with a common control circuit and load current circuit
• single-phase
24 V AC/DC
optional
132
U
load
Load
A1
IN
11
< >
12 14
A2 M
M
load
o.k.
L1 L2 L3
A1
IN
< >
M
A2
load
o.k.
Load
A1 IN
11
< >
12 14
A2 M
o.k.
24 V AC/DC L1 L2 L3
A1 IN
< >
A2 M
load
o.k.
24 V AC/DC
Load
IN
A1
< >
A2 M
Equipment Manual, 07/2021, NEB927043002000/RS-AD/005
SIRIUS 3UG4 / 3RR2 monitoring relay