3VT2 Molded Case Circuit Breakers up to 250 A
Circuit breakers · Switch disconnectors
3/14
Siemens LV 36 · 2008
3
4-pole version
L+
Q3
X3
MP
NC NO
S5
C
X3
J
X4
A2
A2
10.Y2
10.Y1
10.Y1
10.Y3
10.Y2
10.Y4
B2
A1
A1
B1
PE
YC
N–
9 7
8
3
6
4
2
1
2
5
1
1
3VT9 2..-6..0
SO 3
SO 1
T3
T2
T1
V
Q
B
A
SO 2
1
4 2 1
4 2
2 4
3 5
M P
U
<
U
<
I
>
I
>
U
6
2 4
1
1 3 5
TEST
T4
N
7
N
2 4 6 8
NSO0_00091
3VT9 300-1U.00
3VT9 300-1S.00
3VT9 300-1U.10
3VT9 300-2AJ00
S
B
-4WA30
-4PA30
-4WA30
-4PA30
Recommended wiring of the
control circuits
Ext.oper.
counter
cavity no. 10
Plug-in device/Withdrawable device
Plug-in device/Withdrawable device
Main circuit
ON
OFF
Auxiliary trips/Early contact
Motor drive
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
6.3
6.1
6.2
6.4
6.4
6.2
6.1
NSO0_00092
X1
1 2 3 4 5 6 7 8 9 10 1112 13 14 15
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AH10
3VT9 300-2AD10
3VT9 300-2AH10
3VT9 300-2AG10
3VT9 300-2AF10
3VT9 300-2AE10
3VT9 300-2AC10
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
Connecting cable
relative auxiliary
signal
auxiliary
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
acc. c. no. 6
or or
or or
or or
or
or
or
or or
or or
or or
Switches
Connecting cable