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3VT3 Molded Case Circuit Breakers up to 630 A
Accessories and Components
Auxiliary releases
4/27
Siemens LV 36 · 2008
4
■
Overview
Type designation of shunt releases
according to the rated operating voltage
Type designation of undervoltage releases
according to the rated operating voltage
The particular rated operating voltage of the release is set up by
jumpers located right in the release. It is always set to the
maximum value by default.
■
Function
Shunt releases
Circuit breaker switched off by the shunt release
Circuit breaker states and toggle positions of the circuit breaker
U
e
Order No.
AC/DC 24, 40, 48 V
3VT9 300-1SC00
1AC/DC 10 V
3VT9 300-1SD00
AC 230, 400, 500 V/DC 220
3VT9 300-1SE00
U
e
Order No.
AC 24,40 48 V
3VT9 300-1SC00
AC/DC 110 V
3VT9 300-1SD00
AC 230,400,500/DC 220 V
3VT9 300-1SE00
20
20
20
30
20
30
0
1
0
1
0
1
0
1
0
1
t
[ms]
NSO0_00364
2
4
6
1
3
5
5.4
4.4
3.4
5.3
4.3
3.3
5.2
4.2
3.2
5.1
4.1
3.1
2.4 2.3
2.2 2.1
Main contacts
Auxiliary switch
Auxiliary switch
Relative switch
Relative switch
accessory
compartment
2
accessory
compartment
3 … 5
Circuit breaker state
lever positions of circuit breakers
Switched on
Switched off by releases, or by TEST
button or by the release pushbutton
on the motorized operating mecha-
nism
Switched off manually or electrically
by operating mechanism
B1
U
B2
N-
3VT9 300-1S.00
L+
NSO0_00518