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3VT2 Molded Case Circuit Breakers up to 250 A
Accessories and Components
Mounting accessories
Plug-in design
3/37
Siemens LV 36 · 2008
3
■
Design
Plug-in devices
3VT9 200-4PA30
Locking plug-in device against plug-in
device
inserting the circuit breaker
• The plug-in device includes complete accessories for assem-
bling a circuit breaker/switch disconnector in plug-in design
from the original 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 the scope of supply
of 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 3VT9 275-.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 a 3VT9 300-4PL00 15-wire cable.
Coding
3VT9 200-4WN00 coding set
The plug-in device and circuit breaker can be provided with a
coding set, which prevents inserting any other circuit breaker
into the plug-in device.
Position signaling
3VT9 300-4WL00 position signaling switch
The plug-in device may be provided with a maximum of four
switches (for 4-pole version, max. 6 switches) for signaling the
connected/removed position.
States of 3VT9 300-4WL00 switches in the 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 3/13.
Plug-in device with motorized operating mechanism
Circuit breaker in plug-in design with motorized operating mechanism
Accessory compartment
11 ... 14 (19, 20)
1)
Circuit breaker position
Connected
0
1
Removed
1
0
Order No.
3VT9 300-4WL00
Rated operational voltage U
e
V AC 400
AC 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
2
1
4