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Masterpact circuit breakers are used to protect and control low-voltage distribution systems. They may be installed in main LV switchboards, as incoming units, bus-sections and main outgoing circuits.
Stored energy operating mechanism
Masterpact circuit breakers are operated via a stored energy mechanism for instantaneous opening and closing. The mechanism can be charged either manually or electrically and closing and opening operations can be initiated either from the local pushbuttons on the circuit breaker front face, or by remote control.
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