ABB Zenith ZTX Series - Safety Instructions; HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

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Auxiliary contacts
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Auxiliary contacts installation
2
OA_
Max. 4×2 pcs
SOURCE 1
(S1)
SOURCE 2
(S2)
1
Auxiliary contact states
Position
OA1G10
(NO)
OA3G01
(NC)
SOURCE 1 (S1), max 2+2
I
O
II
SOURCE 2 (S2), max 2+2
I
O
II
Table 1
Figure 3
Note: Auxiliary contacts are very difficult to remove once applied!
Auxiliary contacts will be shipped loose. Use Table 1 and Figure 3 to apply A (NO) and B (NC) contacts
for correct operation. Each source has two separate mounting points capable of holding up to two aux
contacts each for position indication, for a total of four per source. There is no restriction on using
NO, NC, or both in any location.