Siemens SIRIUS 3UG4 - Page 252

conductors must not be routed through the transformer or need to be routed through the
transformer in both directions.
3(
/
/
1
/
3(/
/
1
/
/
/
1
/
Route power cables around the residual current transformer in a straight line and ensure the area
corresponds at minimum to the internal transformer diameter.
;
;
X > ∅ residual current transformer
The internal transformer diameter must be at minimum twice the size of the power cable bundle
diameter.
Accessories
13.2 Accessories for 3UG4 monitoring relays
SIRIUS 3UG4 / 3RR2 monitoring relay
252 Equipment Manual, 07/2021, NEB927043002000/RS-AD/005