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3VT2 Molded Case Circuit Breakers up to 250 A
Accessories and Components
Mounting accessories
Withdrawable design
3/41
Siemens LV 36 · 2008
3
Switches in the accessory compartments of the switching unit
Changes in states of the switches when inserting and withdrawing the circuit breaker
1
0 = contact open, 1 = contact closed
1)
Accessory compartments 4, 5, 6 are for 4-pole version only.
State before insertion/withdrawable
State after insertion/withdrawable
Circuit breaker before insertion
State of switches before insertion
- withdrawn position
→
State of switches after insertion
- connected position
Circuit breaker before withdrawal
State of switches before withdrawal
- connected position
→
State of switches after withdrawal
- withdrawn position
Accessory compartment
Knob position of circuit
breaker
State of the main contacts
1
2
3 (4,5,6)
1)
1
2
3 (4,5,6)
1)
3VT9300-2AC10
3VT9300-2AD10
3VT9300-2AC10
3VT9300-2AD10
3VT9300-2AC10
3VT9300-2AD10
3VT9300-2AC10
3VT9300-2AD10
3VT9300-2AC10
3VT9300-2AD10
3VT9300-2AC10
3VT9300-2AD10
Switched on
1 1
0
0
1
1
0
1
0
1
0
0
1
Manually switched off or by
motorized operating mechanism
0 1
0
0
1
0
1
1
0
1
0
0
1
Switched off by releases
0 0
1
1
0
0
1
0
1
1
0
0
1
Switched off from switched-on
state: by means of auxiliary release,
TEST pushbutton or by OFF push-
button on the motorized operating
mechanism
0 1
0
1
0
0
1
1
0
1
0
0
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1
4
3
2
1