13.2.5.6 Installing
Wall mounting procedure
① /
②
Insert the xing lugs into the designated openings in the unit until they reach the stop.
③ Place the device against the wall surface prepared for establishing a screw connection.
④ Insert the head screws through the
corresponding elongated holes in the xing lugs.
⑤ Screw the device onto the level surface so that it is secure.
Mounting onto standard rail
Requirement: At the installation location, a horizontal 35-mm wide mounting rail in accordance
with DIN EN 60715 has been properly secured.
Mounting onto standard rail is possible with residual-current transformers with bushing
opening diameters of up to ∅ 55 mm only (3UL2302-1A, 3UL2303-1A).
Accessories
13.2 Accessories for 3UG4 monitoring relays
SIRIUS 3UG4 / 3RR2 monitoring relay
260 Equipment Manual, 07/2021, NEB927043002000/RS-AD/005
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