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US 8,796,573 B2Granted
Circuit breaker
AssigneeLsis Co., Ltd.
InventorBon Geun Koo
Life of this patent
Estimating the term…
Abstract
A circuit breaker includes a main case; a switching mechanism accommodated in the main case, and having a mechanical part for opening and closing a circuit; a trip mechanism configured to trigger the switching mechanism to a circuit interrupting position upon detection of an abnormal current on a circuit; and an external device detachably mounted to the main case, wherein the circuit breaker includes an interrupting means configured to interrupt the switching mechanism by contacting at least a part of the external device when the external device is mounted to the main case.
Claims5
A circuit breaker, comprising:
- a main case;
- a switching mechanism accommodated in the main case, and having a mechanical part for opening and closing a circuit;
- a trip mechanism configured to trigger the switching mechanism to a circuit interrupting position upon detection of an abnormal current on a circuit;
- an external device detachably mounted to the main case;
- a latch included in the switching mechanism, and configured to maintain a circuit connected state;
- a latch holder configured to restrict or release a movement of the latch;
- and
- a bracket rotatably mounted to the trip mechanism, and configured to restrict or release the latch holder according to a rotation direction,
- wherein the circuit breaker comprises an interrupting means configured to interrupt the switching mechanism by contacting at least a part of the external device when the external device is mounted to the main case, and
- wherein the interrupting means includes a protrusion portion integrally formed at the bracket, and an arm formed at the external device.
7 more elements
Dependencies are inferred from the claim text.