Siemens SENTRON 3WA1 - Page 536

Integration in power distribution equipment
7.4 Requirement according to IEC 61439
3WA1 air circuit breaker
534 Equipment Manual, 02/2023, 92310000002-06
In order to adapt the rated-current coding, one coding pin must be removed from each of
the 3WA11 circuit breakers with breaking capacity S (article number 3WA11..-3...-....)
with rated current I
n
= 630 A to 1600 A.
I
n
= 630 A … 1000 A
I
n
= 1250 A … 1600 A
Adapted rated-current coding of 3WA11 circuit breaker with breaking capacity S:
Size Breaking capacity;
max. rated current
Coding terminals
Circuit breaker
A B
1
S; ≤ 1000 A
S; ≤ 1600 A