Withdrawable Circuit Breaker - GE M-PACT Plus Manual

Withdrawable Circuit Breaker

Pre-mounted into a self-contained 'cassette', this versatile
circuit breaker can be inserted or withdrawn via sliding rails
using a racking drive mechanism controlled by a racking
handle. It provides three set positions:
Disconnected / Test / Connected.
Any attempt to withdraw the unit whilst in service will
automatically trip the breaker, either by the racking position
safety mechanism or by the insertion of the racking handle.
It can be racked to the disconnected position with the cubicle
door closed or open.
• Insulated, earthed steel shutters to isolate the main
contact zone
• Front access padlocking for safety shutters
• Secure padlocking in the "Disconnect" position
• Clearly visible operational position indication
• Carriage position switch (optional)
• Termination: Flat copper palms (standard) with captive
M10 fi xing nuts
• 'T' terminal adaptors for horizontal/vertical connection
(optional)
• Front access connections (optional)
• Automatic disconnect of secondary circuits
• Lifting lugs for ease of removing the circuit breaker from
the cassette
• Front access of secondary terminals for simple connection
• Cassette side mounting fi xing parts (optional)
Installation
Circuit breakers are delivered pre-mounted in the cassette
(standard)
Versatile fi xing awrrangements allow mounting onto any
switchboard or cubicle using four M8 bolts (see dimensional
drawings for mounting details and recommended clearance
distances)
Earthing point situated on the right hand side of cassette
(front view)
Power Supply
All stated short circuit ratings are certifi ed with incoming
supply connection made to either upper or lower terminals.
11
Carriage position switch (optional)
1
Extension rail
2
Earthed steel safety shutter
3
Secondary terminals
4
2 way cable interlock mechanism (optional)
5
Racking handle (storage)
6
Padlocking for safety shutters
7
Insertion hole for racking handle
8
Padlocking in the DISCONNECTED position
9
Operational position indication
10
Key interlock (optional)
11
3
2
1
10
9
7
8
M-PACT Plus
4
5
4
6
A
B
C
X
A.5