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3VT2 Molded Case Circuit Breakers up to 250 A
Circuit breakers · Switch disconnectors
3/13
Siemens LV 36 · 2008
3
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Schematics
Circuit breakers with accessories
3-pole version
1)
Only for 4-pole version of 3VT2 725-.AA46-0AA0 switching unit.
L+
Q3
S
B
X3
MP
NC NO
S5
C
X3
J
X4
A2
3VT9 300-1U.00
3VT9 300-1S.00
3VT9 300-1U.10
3VT9 300-2AJ00
NSO0_00089
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..
-4WA30
-4PA30
-4WA30
-4PA30
SO 3
SO 1
T3
T2
T1
V
Q
B
A
SO 2
1
4 2 1
4 2
2 4 6
2 4 6
3 5
M P
U
<
U
<
I
>
I
>
U
2 4
1
1 3 5
TEST
Recommended wiring of the
control circuits
Motor drive
Auxiliary trips/Early contact
Plug-in device/Withdrawable device
Main circuit
Plug-in device/Withdrawable device
ON
OFF
or
or
or
Ext.oper.
counter
cavity no.10
3VT9 300-2AC10
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AD10
3VT9 300-2AH10
3VT9 300-2AH10
3VT9 300-2AG10
3VT9 300-2AF10
3VT9 300-2AE10
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
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
A
B
1.3
1.1
1.2
1.4
3VT9 300-2AC10
3VT9 300-2AD10
3VT9 300-2AH10
NSO0_00090
X1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Connecting cable
relative auxiliary
signal
auxiliary
acc. c. no. 2 acc. c. no. 3 acc. c. no. 2 + 3
acc. c. no. 1
Connecting cable
or or
or or
or or
or
or
or
Switches
MP
3VT3 200-3M..0 motorized operating mechanism
M
motor
P
storage device
X3
connector to connect control circuits
X4
connector for external operations counter
S5
switch to signal AUTO (NO-C) / MANUAL (NC-C) modes
YC
3VT9 300-3MF10 external operations counter
B
recommended wiring of the control circuits
(not included in the scope of supply of the operating
mechanism)
ON, OFF
pushbutton
S
switch for energy storage (switched on = automatic
storage, switch may be continuously switched on)
Q3
motorized operating mechanism circuit breaker
J
3VT2 725-.AA36-0AA0 switching unit
Q
main contacts
T1, T2, T3, T4
1)
current transformers
V
trip-free mechanism
ETU
LP/DP/MP/MPS
circuit breaker - overcurrent release / switch disconnector
- 3VT9 225-6DT00 switch disconnector module
TEST
pushbutton to test release
3VT9 200-4PA30 plug-in device
3VT9 200-4WA30 withdrawable device
X1, X2
3VT9 300-4PL00 connecting cable
SO1, SO2, SO3 contacts signaling position of circuit breaker/switch dis-
connector in plug-in or 3VT9 300-4WL00 withdrawable
device
3VT9 300-14.00 undervoltage release
3VT9 300-15.00 shunt release
3VT9 300-14.10 undervoltage release with leading contact
3VT9 300-2AJ00 leading contact