Mounting of 3RR2 current monitoring relay, spring-loaded connection technology (size S0)
① Insert the contacts (a) into the central opening of the spring-loaded terminals on the contactor
(see below, a), with the contacts ush to the right. Make sure that the guide tabs (zoom view) are
inserted into the designated slots on the contactor.
The current monitoring relay will sit correctly ush with the contactor on the left- and right-hand
sides.
The gures below show the openings of the main conductor terminals on the contactor (S00 and
S0) into which the contacts on the current monitoring relay have to be inserted.
Main conductor terminal on the contactor (a)
(S00):
Main conductor terminal on the contactor (a)
(S0):
System overview
3.4 Mounting / removal
SIRIUS 3UG4 / 3RR2 monitoring relay
34 Equipment Manual, 07/2021, NEB927043002000/RS-AD/005
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