High rating multipole circuit breaker formed by two adjoined molded cases
AssigneeMerlin Gerin
InventorsPierre Baginski, Jean-Pierre Nebon, Marc Bur
Life of this patent
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Abstract
The circuit breaker is formed by two adjoined standard multipole molded cases, resin being cold-cast between the opposite side walls, comprising reliefs, of the two cases in order to provide fixing. A spacer, secured by bolts to the side walls of the two cases, defines their distance apart and can be used to cooperate with a racking cam when the circuit breaker is drawn into a fixed frame. The circuit breaker comprises an electronic trip device, an operating mechanism and an operating bar of the poles common to all the poles. At least two adjacent poles are twinned, that is to say eletrically connected in parallel.
Claims5
A low-voltage multipole circuit breaker, for high current intensities, comprising a plurality of poles juxtaposed inside an insulating molded case whose side walls comprise reliefs, each pole comprising a pair of separable contacts, an arc chute and a pair of contact terminal pads connected to the separable contacts and protruding outwards from the case, the contact terminal pads being connected to connecting strips designed to be connected respectively to the phases of a mains system to be protected, a circuit breaker characterized in that it is formed by two adjoined standard multipole cases, comprising in common an operating bar of the poles, an operating mechanism of said bar, and an electronic trip device actuating said mechanism, a spacer being fixed to the opposite side walls of the two cases, resin cold-cast between said opposite side walls providing fixing of the two cases, and at least one of the connecting strips being connected to at least two adjacent twinned poles, electrically arranged in parallel.
Dependencies are inferred from the claim text.