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3VT3 Molded Case Circuit Breakers up to 630 A
Accessories and Components
Mounting accessories
Plug-in design
4/38
Siemens LV 36 · 2008
4
■
Design
Plug-in devices
3VT9 200-4PA30 Locking plug-in device against
plug-in device inserting the circuit breakers
The plug-in design of the circuit breaker/switch disconnector is
intended for demanding industrial applications where rapid ex-
change of the circuit breaker along with both visual and conduc-
tive disconnection of the circuit are needed.
• The plug-in device includes complete accessories for assem-
bling circuit breaker/switch-disconnector in plug-in design
from the originally fixed-mounted design
• The components of the plug-in device are:
- supporting part of the plug-in device 2 connection sets
(total of 6 terminals) for fitting on to the switching unit
- interlocking connecting rod (ensures automatic switching off
of the circuit breaker for handling – inserting and removal)
- set of mounting bolts for securing circuit breaker into plug-in
device (to secure plug-in device into switchboard, a set of
mounting bolts is used that is included in delivery of the
3VT3 763-.AA36-0AA0 switching unit
Main circuit
• The 3VT9 300-4TA30
connecting set is used for connecting
with busbars or cable lugs and is included in the scope of
supply of the 3VT3 of switching unit , 3 pole
• for connecting in another way, it is necessary to use connect-
ing sets
(see page 4/9)
• connections must comply with our recommendations
(see
page 4/43)
.
Auxiliary circuits
These are connected using a 15-wire 3VT9 300-4PL00 cable.
Coding
3VT9 300-4WN00 coding set
The plug-in device and circuit breaker can be provided with a
keying set, which prevents inserting any other circuit breaker
into the plug-in device.
Position signalling
3VT9 300-4WL00 position signalling switch
The plug-in device may be provided with a maximum of
four switches (for 4-pole version, max. 6 switches) for
signalling the connected/removed position.
States of 3VT9 300-4WL00 switches in plug-in device
according to the circuit breaker position
0 = contact open, 1 = contact closed
1)
Accessory compartments 19 and 20 are for 4-pole version only.
Technical specifications
For wiring diagram of the circuit breaker in plug-in device with
accessories, see page 4/13.
Plug-in device with motorized operating mechanism
Circuit breaker in plug-in design with motorized operating mechanism
Accessory compartment
11, 12, 13, 14 (19, 20)
1)
Circiut breaker position
Inserted
0
1
Removed
1
0
Order No.
3VT9 300-4WL00
Rated operational voltage U
e
V AC 400
AC 250
Rated islation voltage U
i
V AC 500
Rated frequency f
n
Hz 50/60
Rated operational current
I
e
/U
e
AC-13
3 A/AC 400 V
DC-15
0.15 A/DC 250 V, 3 A/DC 125 V,
4 A/DC 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
2
1
4
2
1
4