Specifications

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withdrawn via sliding rails using a racking drive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 rac-
king position safety mechanism or by the insertion
of the racking handle. It can be racked to the dis-
connected position with the cubicle door closed or
open.
• Insulated 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 fixing 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 fixing parts (optional)
Installation
Circuit breakers are delivered pre-mounted in the
cassette (standard)
Versatile fixing arrangements 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)
A.5
A
M-PACT
Power Supply
All stated short circuit ratings are certified with
incoming supply connection made to either upper or
lower terminals.
1. Carriage position switch (optional)*
2. Extension rail*
3. Earthed steel safety shutter*
4. Secondary terminals
5. 2 way cable interlock mechanism (optional)
6. Racking handle (storage)
7. Padlocking for safety shutters
8. Insertion hole for racking handle
9. Padlocking in the DISCONNECTED position
10.Operational position indication
11.Key interlock (optional)*
* Features not visible in picture
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