| 摘要 |
A microprocessor-based circuit breaker includes a chip that defines the current rating or ground fault current for the breaker. Thus, the maximum current rating and/or ground fault current can be set after manufacture using the chip that is electrically connected to the microprocessor. The breaker includes mechanical components that trip to disconnect the load terminal from the line input. The mechanical components include a floating breaker arm, trigger and tripper lever that cooperate to control the tripping of the breaker. A spring between the breaker arm and trigger, together with cam surfaces defined in the breaker switch cooperate to form a floating linkage to control the position of the breaker arm during on/off activation and current fault conditions. The circuit breaker also includes multiple indicia to provide a visual indication of the type of fault condition sensed by the breaker.
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