Contactor and/or circuit breaker
AssigneeSquare D Starkstrom GmbH
InventorsHelmut Lemmer, Josef Risthaus
Life of this patent
Estimating the term…
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AssigneeSquare D Starkstrom GmbH
InventorsHelmut Lemmer, Josef Risthaus
Estimating the term…
A contactor which includes a contact bridge holder for opening and closing a first plurality of contacts of an electric circuit, a second plurality of additional contacts for each electrical phase and a coil connection of an associated magnetic system, respectively; the magnetic system including thermo trippers and magnetic trippers for selectively operating the first plurality of contacts, three actuation members each mounted for pivoting movement, the first of the actuation members being connected to a slider which is in turn connected to the second plurality of contacts, the second actuation member being operative by the magnetic tripper, the third actuation member being operative by the thermal tripper, the first and second actuation members having end portions which are normally in engagement when the trippers are not actuated and the second plurality of contacts are open, and the normally engaging end portions of the first and second actuating members are moved out of engagement upon the operation of either of the trippers resulting in operation of the slider and the opening of the second plurality of contacts.
A contactor comprising a first plurality of contact means (20, 21, 25, 28) for selectively opening and closing an electric circuit and a second plurality of additional contact means (34, 76 and 46, 47) for each electrical phase and a coil connection of a coil (13) of an associated magnetic system, respectively;
Dependencies are inferred from the claim text.