L2275
Emax UL
12/132
Doc. N°
Mod.
RH0109002
Apparatus
Scale
Page N°
90°
90°
Fig. 21
Fig. 22
1
3
4
2
5.4
Conversion of the auxiliary or position contacts from normally closed (opening) to normally open (closing) or vice versa
The contacts are cabled in the factory as is shown on the electrical circuit diagram. Should it be necessary to modify the state for installation
requirements, proceed as follows.
a ) Auxiliary contacts
To access the auxiliary contacts, carry out the following operations:
– remove the front protection (3) of the trip unit by working on the blocks (1) as shown in the figure
– remove the trip unit (4) by removing the side nuts (2) and sliding it out from the front of the power circuit breaker.
Being of the two-way type (changeover contacts), the auxiliary contacts can be modified from break contacts to make contacts and vice versa
simply by moving the output conductor from one position to the other, as shown in the figure.
N.C. contact
Sliding contacts
b) Position contacts
To change the state of the position contact, proceed in the same way as the one indicated for the auxiliary contacts (see Fig. 21-22).
N.O. contact
Terminal box
