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US 2012/0049995 A1Published application
Electrical switching apparatus
AssigneeKaon Holdings Pty Ltd
InventorDavid Russell Murray
Life of this patent
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Abstract
A switching apparatus for use in conjunction with a fuse, the switching apparatus including a circuit interrupter having a pair of separable contacts, a sensor for sensing a line fault, and an actuator for moving the contacts to an open state when a line fault is sensed, and wherein the switching apparatus is arranged such that the contacts always return to a closed state.
Claims35
A switching apparatus for use in conjunction with a fuse including:
- a circuit interrupter having a pair of separable contacts;
- a sensor for sensing a line fault;
- and,
- an actuator for moving the contacts to an open state when a line fault is sensed, and wherein the switching apparatus is arranged such that the contacts always return to a closed state.
1 more element
A switching system including:
- a switching apparatus including:
- a circuit interrupter having a pair of separable contacts;
- a sensor for sensing a line fault;
- and,
- an actuator for moving the contacts to an open state when a line fault is sensed, and wherein the switching apparatus is arranged such that the contacts always return to a closed state;
- a fuse in series with the switching apparatus.
3 more elements
A switching apparatus for use in conjunction with a fuse including:
- a circuit interrupter having a pair of separable contacts;
- a sensor for sensing a line fault;
- and,
- an actuator for moving the contacts to an open state when a line fault is sensed, and wherein the switching apparatus is arranged such that the contacts have no stable open state.
1 more element
(canceled)
Dependencies are inferred from the claim text.