Installation guide

PB100839
To ensure a continuous supply of electrical power,
certain installations are connected to two sources:
b
a normal source N
b
a replacement source R used to supply the
installation when the normal source is unavailable.
A source-changeover system switches the load
between these two sources. It can be automated to
manage transfers according to external conditions. A
source-changeover system includes two or three
circuit breakers or switch-disconnectors.
With Interpact INS, Compact NS and Masterpact NT
and NW, new installation solutions are available to
optimise the size of the switchboard and simplify
installation.
Interlocking of two Interpact switch-disconnectors
via rotary handles.
PB100840
Complete source-changeover assembly with
two Interpact switch-disconnectors.
PB100930-68
Interlocking of two Compact NS circuit breakers
on a base plate.
PB100842
Interlocking of two Masterpact NT and NW circuit breakers
using cables.
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