Masterpact ® circuit breaker
accessories
20
Two or three Masterpact circuit breakers can
be mechanically interlocked by means of
rods or cables.
This accessory is mountable on the right
side of the circuit breaker.
This adaptation can be made on-site without
modifying the circuit breaker.
mechanical interlock
between two or three
stacked circuit breakers
This interlocking is obtained by the
joining of:
•
one adaptation block
•
one or two adjustable and unadjustable
rods
Maximum distance between the two fixing
surfaces of the devices: 35 in. (0.89 m)
mechanical interlocks
between two side-by-side
circuit breakers
This interlocking is obtained by the
joining of:
•
one adaptation block
•
one set of adjustable cables with a
maximum length of 78 in. (2 m)
interlocking rods
possible mounting arrangements between
three stacked circuit breakers
N1
N2
M P 1 0 1 8A.O
One use, power supplied by:
•
either two transformers N1 and N2 which
are connected in parallel
•
or one standby source
G
N1
N2
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Two uses, independently powered supply by
two transformers N1 and N2, standby
through a circuit breaker or a connection tie
switch, preventing the connection in parallel
of the two current transformers
N1
N2
N3
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One use, power supplied by one group of
transformers N 1 , N2 or N3 or of generators,
preventing any connection in parallel
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