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3VT2 Molded Case Circuit Breakers up to 250 A
Accessories and Components
Auxiliary releases
3/27
Siemens LV 36 · 2008
3
Undervoltage releases
Circuit breaker switched off by the undervoltage release
Circuit breaker states and toggle positions of the circuit breaker
Number and type of contacts by arrangement of contacts
■
Technical specifications
Shunt releases
Undervoltage releases
1)
Tripping of the undervoltage release can be delayed using the 3VT9 00-
1UX00 delay unit, for more detailed information, see page P.
2)
Cannot be used in combination with 3VT9200-3M..0 motorized operating
mechanism.
20
20
20
20
30
30
20
0
1
0
1
0
1
0
1
0
1
0
1
0
1
t
[ms]
20
NSO0_00231
10.Y2
10.Y4
10.Y1
10.Y3
10.Y2
10.Y4
10.Y1
10.Y3
2
4
6
1
3
5
3.4 3.3
3.2 3.1
2.4 2.3
2.2 2.1
Main contacts
Auxiliary switch
Auxiliary switch
Relative switch
Relative switch
Early switch
Early switch
accessory
compartment
2
accessory
compartment
3
accessory
compartment
10
Circuit breaker state
Toggle positions of circuit breakers
Switched on
Switched off by releases, or by TEST
button or by the trip pushbutton on
the motorized operating mechanism
Switched off manually or electrically
by operating mechanism
Arrangement of contacts Number of contacts Contct types
02
2
break
11
1 + 1
break + make
20
2
make
A2
10.Y1
A1
A1
U
<
U
<
A2
10.Y2
N-
N-
3VT9 300-1O.00
3VT9 300-1S.00
L+
L+
NSO0_00230
or
Order No.
3VT9 300-1S.00
Rated operating voltage U
e
V AC 24, 40, 48, 110, 230, 400, 500
DC 24, 40, 48, 110, 220
Rated frequency f
n
50/60 Hz
Input power at 1.1 U
e
AC < 3 VA
DC < 3 W
Functional description
U
≥
0,7U
e
the circuit breaker must trip
Time to switch-off
ms 20
Loading time
∞
Connection cross-section S mm
2
0.5 ... 1
Terminal protection
(connected release)
IP20
Location in accessory
compartment No.
10
Order No.
3VT9 300-1U.00 3VT9 300-1U.10
2)
Rated operating voltage U
e
V AC 24, 40, 48, 110, 230, 400, 500
DC 24, 40, 48, 110, 220
Rated frequency f
n
Hz 50/60
Input power at 1.1 U
e
AC <3 VA
DC <3 W
Functional description
1)
U
≥
0.85 U
e
(circuit breaker is possible switch on)
U
≤
0.35 U
e
(the circuit breaker must trip)
Time to switch off
ms 20
Loading time
∞
Connector cross-section S mm
2
0.5 ... 1
Terminal protection
(connected release)
IP20
Location in accessory
compartment No.
10
Leading switch
Rated operating voltage U
e
V --
AC 250
Rated frequency f
n
Hz --
50/60
Rated operating current
I
e
/U
e
V --
AC 1 A/259
Arrangement of contacts
--
02, 11, 20
Connector cross-section S mm
2
--
0.5 ... 1
Terminal protection
(connected release)
--
IP20