133 / 267
3VT3 Molded Case Circuit Breakers up to 630 A
Circuit breakers · Switch disconnectors
4/13
Siemens LV 36 · 2008
4
■
Schematics
Cicuit breakers with accessories
3-pole version
L+
Q3
J
X4
A2
A2
10.Y2
10.Y1
10.Y1
10.Y3
10.Y2
10.Y4
B2
A1
A1
B1
YC
3
6
4
2
1
2
5
1
1
3VT9 325-6..00
SO 3
SO 1
T3
T2
T1
V
Q
B
A
SO 2
1
4 2 1
4 2
2 4
3 5
X3
MP
NC NO
S6
C
X3
12 10
11
M P
U
<
U
<
I
>
I
>
U
6
2 4
6
2 4
1
1 3 5
TEST
NSO0_00249
3VT9 300-4PA.0
3VT9 300-4WA.0
3VT9 300-1U.00
3VT9 300-1S.00
3VT9 300-1U.10
3VT9 300-2AJ00
S
B
PE N-
NC NO
S5
C
9 7
8
3VT9 300-1U.10
3VT9 300-4PA.0
3VT9
300-
4WA.0
Recommended wiring of the
control circuits
Ext.oper.
counter
acc.comp. no. 10
Plug-in device/Withdrawable device
Plug-in device/Withdrawable device
Main circuit
ON
OFF
Motor drive
Auxiliary trip/Early contact
or
or
or
X2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
2.3
2.1
2.2
2.4
3.3
3.1
3.2
3.4
2.3
3.3
2.1
3.3
2.1
3.1
4.3
4.1
4.2
4.4
5.3
5.1
5.2
5.4
A
B
1.3
1.1
1.2
1.4
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AH10
1.4
1.2
1.1
2.4
2.2
2.1
3.4
3.2
3.1
2.4
3.4
2.2
3.4
2.2
3.2
4.4
4.2
4.1
5.4
5.2
5.1
NSO0_00250
X1
1 2 3 4 5 6 7 8 9 10 1112 13 14 15
3VT9 300-2AG10
3VT9 300-2AF10
3VT9 300-2AE10
Connecting cable
relative auxiliary
signal
auxiliary
auxiliary
auxiliary
acc.c. no. 2
acc.c. no. 3
acc.c. no. 2 + 3
acc.c. no. 4 acc.c. no. 5
acc.c. no. 1
or or
or or
or or
or
or
or
or or
or
or
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AH10
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AH10
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AH10
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AH10
Switches
Connecting cable