Siemens SENTRON 3WL - Schematics

3WL Air Circuit Breakers
57
Siemens · 2009
3WL Non-Automatic Air Circuit Breakers up to 4000 A (DC)
Project planning aids
■ Schematics
Schematics of the DIGmat S100 and the SENTRON 3WL non-automatic
air circuit breaker
Application examples
The connection to the circuit breakers is not dependent on direc-
tion and polarity; the circuit diagrams can be adapted
accordingly.
If the parallel or series connections are made directly to the
connecting bars, for thermal reasons the continuous load on the
circuit breakers must only be 80 % of the permissible operational
current. If the parallel or series connection is made at a distance
of 1 m from the connecting bars, the circuit breaker can be used
at full operational current load.
]
Grounded-neutral system
 Load
L1
N
PE
AC230
DC24
+
-
X1.2 X1.1 X5.2 X5.1
+
-
DC24
AC230
X4.i1+
X4.i1-
X4.i2+
X4.i2-
DIGmat S100
+
-
X2.1
X2.3
+
-
-Q01 1 3 5
3WL
X4.01
+
X4.01
-
X4.02
+
X4.02
-
X4.03
+
X4.04
+
X4.04
-
X4.03
-
-K1
-K2
11
12 14
11
12
14
-X6.14-X5.12
SENTRON
-F1 -F3
-X6.13
-X5.11
-Q01 2 4 6
NSE0_01577a
Emergency STOP
Auxiliary power
Automatic RESET
Shunt
(60mV)
Excitation / Alarm
Automatic / Reset
Digital output
Digital input
Rated operational
voltage
Required series
breaks at rated voltage
For 3-pole non-automatic air circuit brea-
kers
(operational currents up to 4000 A/
conducting path)
For 4-pole non-automatic air circuit breakers
(operational currents up to 4000 A/conducting path)
Up to 300 V + 10 %
1-pole,
2 parallel conducting
paths,
only with grounded-
neutral system
2-pole 1-pole,
3 parallel conducting paths,
only with grounded-neutral
system
2-pole
2 parallel conducting
paths
Over 300 V + 10 %
Up to 600 V + 10 %
2-pole,
only with grounded-
neutral system
1-pole,
2 parallel conducting paths,
only with grounded-neutral
system
2-pole
Over 600 V + 10 %
Up to 1000 V + 10 %
(version for 1000 V
required, order with "-Z"
and order code A05)
1-pole,
only with grounded-
neutral system
2-pole,
only with grounded-neutral
system
1-pole,
only with grounded-
neutral system