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Being the two-way type (changeover contacts), the auxiliary contacts can modified from break contacts make contacts and vice versa
simply moving the output conductor from one position the other, shown the figure (example for PR121).
Fig.5. necessary change their state for installation requirements,
proceed follows. contact Terminal box
Fig.O.
14/158
.4 rsio xiliary cts sig llin cts isco cte iso cte fro lly
clo lly (clo sin vice versa
The contacts are wired the factory shown the electrical circuit diagram.
a) uxiliary contacts
To access the auxiliary contacts, carry out the following operations:
- remove the front protection (3) the release taking action the blocks (1) shown the figure
- remove the protection release (4) removing the side nuts (2) and then sliding the release out from the front the circuit-breaker. 22
b llin -
c d
To change the state the position contact, proceed the same way
as explained for the auxiliary contacts.
Model L2234 Apparatus Scale
L 2778
Doc-No' 1SDH000460R0002
Page No.
N
