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THREE PHASE REMOTE CONTROL CIRCUIT BREAKER

  • US 3,863,186 A
  • Filed: 10/26/1973
  • Issued: 01/28/1975
  • Est. Priority Date: 10/26/1973
  • Status: Expired due to Term
First Claim
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1. In an electro-thermal latch trip mechanism the combination with a pivotally mounted latch having means biasing it towards a latching position a. of a plurality of bimetal members connectable in the respective branches of an electrical load circuit b. a member having portions in line with respective ones of said bimetal members, and c. ambient temperature compensator bimetal members spaced apart and corresponding in number to the first mentioned bimetal members and attached at corresponding ends to said latch and attached to and supporting said member at their other ends d. said first mentioned bimetal members warping toward and engaging with said member in accordance with the overload current flowing therethrough to pivot said latch out of its latching position, and e. said compensator bimetal members individually and differentially tending to warp and pivot said member away from said bimetal members and toward said latach in accordance to the ambient temperature to which they are subjected.

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