<Li> Actuator lever - used to manually trip and reset the circuit breaker . Also indicates the status of the circuit breaker (On or Off / tripped). Most breakers are designed so they can still trip even if the lever is held or locked in the "on" position . This is sometimes referred to as "free trip" or "positive trip" operation . </Li> <Li> Actuator mechanism - forces the contacts together or apart . </Li> <Li> Contacts - allow current when touching and break the current when moved apart . </Li> <Li> Bimetallic strip - separates contacts in response to smaller, longer - term overcurrents </Li>

Circuit breakers and disconnect switches are examples of