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3VT1 Molded Case Circuit Breakers up to 160 A
Circuit breakers · Switch disconnectors
2/13
Siemens LV 36 · 2008
2
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Schematics
Circuit breakers with accessories
3-pole version
Explanations
Power losses (per pole)
Buttons
TEST pushbutton: By pressing this pushbutton, the circuit
breaker/switch disconnector is switched off and the auxiliary
switches are actuated.
REVISION pushbutton: By pressing this pushbutton, the tripping
of the circuit breaker by an overcurrent release is simulated. This
procedure also simulates the actuation of the auxiliary switches
and signaling switches. For pressing the pushbutton, a suitable
instrument – such as a wire with a diameter of about 1 mm – is
needed.
Operator panel
Indication of circuit breaker tripping
After the circuit breaker has been switched off by the overcurrent
release, the following symbol will be displayed: „ “
A1
10.Y2
A2
10.Y2
B2
10.Y1
B1
10.Y1
6.4
6.1
5.1
4.1
6.2
I
>
V
Q
REVIZE
TEST
1.2
1.4
NSO0_00523
1.1
1.1
1.2
1.4
1.3VT9 100-2AH10
2.2
2.4
3.2
3.4
3VT9 100-1U.00
3VT9 100-1S.00
4.4
4.2
5.4
5.2
J
6.3VT9 100-2AB10
3.3VT9 100-2AB10
2.3VT9 100-2AB10
1.3VT9 100-2AB10
2.1
3.1
3 1
5
2 4 6
U
<
U
auxiliary
signal or aux. auxiliary auxiliary
Switches or Auxiliary starters
Main circuit
Switches
acc.comp. no. 10 acc.comp. 6
acc.c. no. 1 acc.c. 2 acc.c. 3
acc.c. no. 5 acc.c. no. 4
or
or
J
circuit breaker
Q
main contacts
V
trip-free mechanism
N
overcurrent release
TEST
TEST push button
INSPECTION
INSPECTION push button
3VT9 100-1U.00
undervoltage release
3VT9 100-1S.00
shunt trip
Rated current
I
n
Power loss P per pole of circuit
breaker at maximum current
A
W
16
4
20
4
25
4
32
4
40
4
50
5
63
6
80
7
100
10
125
15
160
15