Electrical switching apparatus including a second trip circuit responding to failure of a first trip circuit to provide a repetitive signal

An arc fault or ground fault circuit interrupter comprising:

• separable contacts;
• an operating mechanism structured to open and close said separable contacts;
• a first arc fault or ground fault trip circuit including a first output having a first arc fault or ground fault trip signal and a second output having a repetitive signal;
• a second trip circuit including an input having said repetitive signal and an output having a second trip signal, said second trip circuit being structured to output said second trip signal responsive to failure of said first trip circuit to provide said repetitive signal;
• and
• a third circuit responsive to said first arc fault or ground fault trip signal and said second trip signal and cooperating with said operating mechanism to trip open said separable contacts.

A receptacle comprising:

• separable contacts;
• an operating mechanism structured to open and close said separable contacts;
• a first trip circuit including a first output having a first trip signal and a second output having a repetitive signal;
• a second trip circuit including an input having said repetitive signal and an output having a second trip signal, said second trip circuit being structured to output said second trip signal responsive to failure of said first trip circuit to provide said repetitive signal;
• and
• a third circuit responsive to said first trip signal and said second trip signal and cooperating with said operating mechanism to trip open said separable contacts.