Molded case circuit breaker with linear responsive unit
 A molded case circuit breaker utilizes a thermally responsive trip unit for providing long and short-time overcurrent protection and a magnetically responsive trip unit for instantaneous or short-circuit protection. An electrically and thermally insulative lever interfaces between the thermal element and the circuit breaker trip response bar to linearize the movement of the thermal trip element in response to circuit current. 
General Electric Company
H
H01H
inventional
Roger N. David
Castonguay Arnold