Circuit breaker assembly
AssigneeSquare D Company
InventorDaniel J Runyan
Life of this patent
Estimating the term…
Abstract
An anti-rotation device for preventing the pivotal rotation of a circuit breaker required for removal of that circuit breaker from electrical distribution equipment in which it is installed is disclosed.
Claims20
A plug-in circuit breaker assembly comprising:
- at least one plug-in type circuit breaker;
- a lug pack connected to a load end of said at least one plug-in type circuit breaker;
- an anti-rotation device operatively connected to said lug pack for selectively permitting or preventing a pivotal rotation of said circuit assembly required for removal from an electrical distribution equipment in which said circuit breaker assembly is installed.
A plug-in circuit breaker assembly installed in electrical distribution equipment by pivotal rotation, said circuit breaker assembly comprising:
- at least one plug-in type circuit breaker;
- a lug pack connected to a load end of said at least one plug-in circuit breaker;
- an anti-rotation device operatively attached to said lug pack for selective movement between a first position and a second position.
A plug-in circuit breaker assembly installed in electrical distribution equipment by pivotal rotation about a mounting rail fixed to a surface of the electrical distribution equipment, said circuit breaker assembly comprising:
- at least one plug-in type circuit breaker defining a mounting cam, said cam pivotally engaging said mounting rail;
- a lug pack connected to a load end of said at least one plug-in circuit breaker;
- an anti-rotation device having a distal end and being operatively attached to said lug pack for selective movement between a retracted position and an extended position.
A plug-in circuit breaker installed in electrical distribution equipment by pivotal rotation about a mounting rail fixed to a surface of the electrical distribution equipment, said circuit breaker comprising:
- a circuit breaker case for supporting and protecting electrical and mechanical components of said circuit breaker;
- a mounting cam defined by said case pivotally engaging said mounting rail;
- an anti-rotation device having a distal end and being operatively attached to said circuit breaker case for selective movement between a retracted position wherein said distal end of said anti-rotation device is sufficiently spaced from said surface of the electrical distribution equipment to permit said pivotal rotation of said circuit breaker required for installation and removal and an extended position wherein said distal end of said anti-rotation device is in sufficient proximity to said surface of the electrical distribution equipment that said distal end of said anti-rotation device engages said surface of said electrical distribution equipment when said pivotal rotation required for removal of said circuit breaker is attempted.
Dependencies are inferred from the claim text.