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US 7,292,419 B1Granted
Fault interrupter with interchangeable line load connections
OwnerDavid C. Nemirinventor
Life of this patent
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Abstract
An apparatus and method for making fault interrupter receptacles tolerant to miswiring errors. By employing redundant sense elements plus a special switch configuration, the device obtains a symmetry that makes it unnecessary to designate specific line and load terminals. The addition of open neutral protection, ground assurance, transposed conductor protection and end-of-life protection provides enhanced performance with the addition of only a few parts relative to a conventional fault protection unit.
Claims18
An apparatus for electrical fault protection, said apparatus comprising:
- a) a pair of connections nominally designated for receiving electrical power from a power source;
- b) a pair of nominally designated connections for delivering power to a remote load;
- c) redundant fault sensing components that detect an unsafe electrical condition;
- and
- d) redundant electrical interruption components that are is activated to remove power from said unsafe electrical conditions;
- wherein said two pairs of connections can be interchanged without compromising ability of said fault sensing components to detect an unsafe electrical condition.
3 more elements
Dependencies are inferred from the claim text.