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3VT2 Molded Case Circuit Breakers up to 250 A
Accessories and Components
Mounting accessories
Withdrawable design
3/39
Siemens LV 36 · 2008
3
■
Design
Withdrawable devices
Circuit breaker
3VT9 200-4WA30
in withdrawable design
withdrawable device
• The withdrawable device includes complete accessories for
assembling circuit breaker/switch disconnector in withdraw-
able design from the originally fixed-mounted design
• The components of the withdrawable device are:
- supporting part of the withdrawable device
- 2 movable side plates
- 2 connection sets (total of 6 terminals) for fitting onto the
switching unit
- interlocking connecting rod (ensures automatic switching off
of the circuit breaker for handling, inserting and withdrawing)
- a set of mounting bolts is used to fasten the withdrawable
device into the switchboard, and these are include with the
3VT2 725-.AA36-0AA0 switching unit
Main circuit
• The 3VT9 200-4TA30 connecting set is used for connecting
with busbars or cable lugs and is included in the scope of sup-
ply of the 3VT2 725-.AA36-0AA0 switching unit
• For connecting in another way, it is necessary to use connect-
ing sets
(see page 3/9)
• The type of connections must comply with our recommenda-
tions
(see page 3/11)
.
Auxiliary circuits
These are connected using the 3VT9 300-4PL00 15-wire cable.
Coding
3VT9 200-4WN00 coding set
The withdrawable device and circuit breaker can be provided
with coding set, which prevents inserting another circuit breaker
into the withdrawable device.
Position signaling
3VT9 300-4WL00 position signaling switch
The withdrawable device can be provided with switches for sig-
naling the position of the circuit breaker, see table.
Technical specifications
For wiring diagram of the circuit breaker in plug-in device with
accessories, see page 3/13.
States of 3VT9 300-4WL00 switches in withdrawable device
according to circuit breaker and arrestment positions
0 = contact open; 1 = contact closed
1)
Accessory compartments 19 and 20 are for 4-pole version only.
• Operating state is always in arrested position
• In arrested position, it is possible to lock the withdrawable
device (for more detailed information, see “Advantages and
enhanced safety for operator”)
Locking the circuit breaker
Locking the withdrawable device
in withdrawable device
against inserting the circuit breaker
against tampering
Order No.
3VT9 300-4WL00
Rated operational voltage U
e
V
AC 400, 250
Rated isolation voltage U
i
V
AC 500
Rated frequency f
n
Hz
50/60
Rated operational current
I
e
/U
e
• AC-13
3 A/400 V
• DC-15
0.15 A/250 V, 3 A/125 V, 4 A/30 V
Thermal current
I
th
A 6
Arrangement of contacts
001
Connector cross-section S mm
2
0.5 ... 1
Terminal protection
(connected switch)
IP20
Accessory compartment
11,12,13,14
(19, 20)
1)
15,17
(19, 20)
1)
16,18
Circuit breaker and arrest-
ment position
Connected and unarrested 0
1
1
0
0
1
1
1
1
0
1
0
Withdrawn and unarrested 1
0
0
1
0
1
1
0
0
1
1
0
Removed and unarrested 1
0
1
0
0
1
1
0
1
0
1
0
2
1
4
2
1
4
2
1
4