Protective Device With Non-Volatile Memory Miswire Circuit

摘要

The present invention is directed to an electrical wiring device that includes a processing circuit is configured to determine the wiring state based on detecting a wiring state parameter at the plurality of line terminals during a predetermined period after the tripped state has been established. The processing circuit is configured to store a wiring state indicator in a wiring state register based on a wiring state determination. The wiring state register being preset to trip the circuit interrupter when the AC power source is applied by an installer to the plurality of line terminals or the plurality of load terminals for the first time.

主权项

1. An electrical wiring device for use in an electrical distribution system, the electrical distribution system including a plurality of line conductors coupled to an AC power source and a plurality of load conductors, the device comprising:
a plurality of line terminals and a plurality of load terminals configured to terminate the plurality of line conductors and the plurality of load conductors in a wiring state, the wiring state being in a properly wired condition when the plurality of line conductors are terminated to the plurality of line terminals, the wiring state being in a miswired condition when the plurality of line conductors are terminated to the plurality of load terminals; a protective circuit assembly coupled to the plurality of line terminals or the plurality of load terminals, the protective circuit assembly including at least one fault detector configured to generate a fault detection signal based on electrical perturbations propagating on at least one of the plurality of line terminals or at least one of the plurality of load terminals; a circuit interrupter assembly coupled to the protective circuit assembly, the circuit interrupter including a plurality of interrupting contacts configured to establish continuity between the plurality of line terminals and the plurality of load terminals in a reset state in response to a reset stimulus and establish a discontinuity between the plurality of line terminals and the plurality of load terminals in a tripped state in response to a trip stimulus including the fault detection signal or a miswiring state signal; and a processing circuit configured to determine the wiring state based on detecting a wiring state parameter at the plurality of line terminals during a predetermined period after the tripped state has been established, the processing circuit being configured to store a wiring state indicator in a wiring state register based on a wiring state determination, the wiring state register being preset to trip the circuit interrupter when the AC power source is applied by an installer to the plurality of line terminals or the plurality of load terminals for the first time.