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Powerpact 4 panelboards
Circuit breaker
installation
Technical
Section 9
Dimensions
Section 10
The 4 pole busbar system ready to accept the circuit
breaker.
The circuit breaker is placed in the panelboard and
pushed up to the busbars. 1P, 2P, 3P and 4 pole
breakers may be mixed in any order on the busbars.
The circuit breaker fixing screw is fitted and tightened
to retain the breaker in the board.
The connections to the busbars are tightened until the
tops of the connection bolts shear off. This ensures
that the correct torque has been applied to the
connections.
The circuit breaker is now mechanically & electrically
connected in the panel board. It is now ready for the
outgoing cables.
Note how the breaker cassette fully shrouds the
busbars. Unused positions must be fitted with blanking
plates.