Method of assembling a molded case circuit breaker crossbar
AssigneeGeneral Electric Company
InventorsRoger N. Castonguay, David Arnold, David J. Meiners
Life of this patent
Estimating the term…
Abstract
A molded case circuit breaker crossbar assembly allows the movable contact carrier, contact spring and contact carrier operating cam to be preassembled prior to insertion within the circuit breaker case. The crossbar is fabricated from a plastic molding composition having slots thereon for supporting the movable contact carrier and for retaining the charged contact operating spring. The contact carrier operating cam engages a roller carried by the operating mechanism link to couple the crossbar assembly to the circuit breaker operating mechanism.
Claims6
A method of assembling a molded case circuit breaker comprising the steps of:
- providing a circuit breaker case having a first contact arranged on a bottom surface;
- inserting a part of a contact carrier having a second contact at one end within a slotted crossbar assembly;
- positioning a crossover loop of a contact spring within means formed on a top surface of said contact carrier;
- rotating said contact spring and trapping ends of said contact spring under detent projections formed on said crossbar assembly to bias said contact spring against said contact carrier;
- and
- inserting said crossbar assembly, contact carrier and contact spring within said circuit breaker case with said first and second contacts in operational alignment.
Dependencies are inferred from the claim text.