Siemens SENTRON 3WL Reference Manual page 49

3WL Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC)
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Schematics
Terminal assignment diagram
(Auxiliary switch S1, S2 = Standard)
Remote reset bell alarm & tripped indicator F7
ext. voltage transformer Com
ext. voltage transformer L3
ext. voltage transformer L2
ext. voltage transformer L1
Trip signalling switch S24
(position after tripping)
"Spring charged" signal S21
Local electric close S10
Signaling contact at the 1 st auxiliary release
Signaling contact at the 2nd auxiliary release
1st auxiliary release F1 "ST"
"Ready to close" signal S20
2nd auxiliary release: F2 "ST", F3 "UVR", F4 "UVR td"
opt. motor main switch S12
Internal wiring
optional
Accessories
G transformer S2
G transformer S1
N sensor S2
N sensor S1
0 V DC
24 V DC
BUS
+
BUS
S23
S1 "NO"
S1 "NC"
Closing solenoid
S2 "NO"
S2 "NC"
F4 only "quick OFF"
F4 only "quick OFF"
S3 "NO" or S7 "NO"
S3 "NC" or S7 "NO"
S4 "NO" or S8 "NO"
S4 "NC" or S8 "NO"
(sw) (br)
Charging motor M
3WL Air Circuit Breakers
Terminals External wiring
14
13
12
11
10
9
8
7
6
5
4
3
2
1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Project planning aids
L+
c
L–
e.g. current transformer in the
star point of power transformer
or a summation current
transformer 1200 A /1A
Short terminals if no N-sensor
L1 L1
L2 L2
L3 L3
N N
24 V DC input
Termination resistor,
if not external CB-module!
/COM16
(Option F02/F12)
L+
c
L+
c
L–
L–
c
L+
EMERGENCY STOP
or short terminals
L+
c
L–
L+
c
L–
Siemens · 2009 49