Siemens SENTRON 3VA2 - Breaking Capacity

Description
2.3 Technical details
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
51
2.3.6
Breaking capacity
The rated ultimate short-circuit breaking capacity I
cu
is the maximum value of the short-circuit
current which the protective device is capable of disconnecting in accordance with
regulations. Up to this value, the protective device is also allowed to be used in a network.
The 3VA molded case circuit breakers are available with identical external dimensions but
various breaking capacity classes according to size and rated operational current range.
The tested tolerance range of the rated operational voltages is ±5%.
Breaking capacity of the 3VA1 range
1)
I
n
125 A, 160 A: I
cu
/ I
cs
= 36 kA / 36 kA