Siemens SENTRON 3WL10 - Technical Overview

When the circuit breaker arrives at one of the positions during racking, it engages in this
position. Further racking is then only possible once the pushbutton for unlocking racking
(Push before Operating) has been pressed.
2.8.4 Technical overview
3WL10 circuit breakers
Number of poles    3, 4
Rated operational current I
n
40 °C A 630, 800, 1000, 1250
Rated operational voltage U
e
AC (50/60Hz) V Up to 690
Rated insulation voltage U
i
AC (50/60Hz) V 1000
Rated impulse withstand voltage U
imp
 kV 12
Current-carrying capacity of the
neutral pole for 4-pole
circuit breakers
  %I
n
100
Breaking capacity    B N S
Rated ultimate short-circuit
breaking capacity AC
I
cu
415/ 440VAC kA 42 55 66
I
cu
500/ 525VAC kA 42 50 50
I
cu
690VAC kA — 42 50
Rated service short-circuit break‐
ing capacity AC
I
cs
415/ 440VAC kA 42 50 50
I
cs
500/ 525VAC kA 42 50 50
I
cs
690VAC kA — 42 50
Rated short-circuit making ca‐
pacity AC
I
cm
415/ 440VAC kA 88 121 145
I
cm
500/ 525VAC kA 88 105 105
I
cm
690VAC kA — 88 105
Rated short-time withstand cur‐
rent
I
cw
1s kA 42 42 50
I
cw
3s kA 24 24 36
Break time on opening  I<I
cw
ms 40
 I>I
cw
ms 25
Rated conditional short-circuit
current of the
non-automatic air circuit break‐
ers
I
cc
500/ 690VAC kA — 42 50
Utilization category  IEC 60947-2 B
Disconnector feature ✓
Reference standard IEC 60947-2
Trip unit (ETU)  3-series LI ✓
LSI ✓
LSIG ✓
 6-series LSI ✓
LSIG ✓
Description
2.8Basic unit
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
34 Equipment Manual, 10/2023, L1V30499596002-03