Patent ID: 11916370
Assignee: LEVITON MANUFACTURING CO., INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. An apparatus to perform ground fault self-testing, comprising:
a first controller powered from a source of AC power from a line side and configured to:
receive, from a second controller, a signal to initialize a self-test;
determine that the self-test was successful; and
output a successful self-test result signal to the second controller responsive to determining that the self-test was successful;

a plurality of switching elements;
an electrically-held relay in electrical communication with the plurality of switching elements; and
the second controller powered from the source of AC power from the line side and configured to:
output, to the first controller responsive to the apparatus that performs ground fault self-testing powering on, the signal to initialize the self-test;
receive, from the first controller, the successful self-test result signal; and
turn on the electrically-held relay that selectively establishes electrical communication between the source of AC power and a load based on the successful self-test result signal, wherein the electrically-held relay is powered from the source of AC power from the line side and is configured to selectively establish electrical communication between the source of AC power and the load if at least one of the plurality of switching elements is operational.