Siemens SENTRON 3WA1 - Breaking Capacity for DC

Technical specifications
6.3 Technical specifications of 3WA circuit breakers
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
499
6.3.3.6 Breaking capacity for DC
3WA12
DC
1000 A
2000 A
4000 A
Rated operational voltage U
e
Breaking capacity D
V
600
600
600
Breaking
capacity E
3-pole
V
1000
1000
1000
4-pole
V
1500
1500
1500
3WA12
DC
D
E
Rated short-time withstand current I
cw
at DC
U
e
≤ 220 V
1 s
kA
35
--
U
e
≤ 300 V
1 s
kA
30
--
U
e
≤ 600 V
1 s
kA
25
--
U
e
≤ 1000 V
1 s
kA
--
20
U
e
≤ 1500 V
3-pole
1 s
kA
--
--
4-pole
1 s
kA
--
20
Rated conditional short-circuit current I
cc
of the non-automatic circuit breakers
U
e
≤ 220 V
kA
35
--
U
e
≤ 300 V
kA
30
--
U
e
≤ 600 V
kA
25
--
U
e
≤ 1000 V
kA
--
20
U
e
≤ 1500 V
3-pole
kA
--
--
4-pole
kA
--
20