Two pole ground fault circuit breaker

A two pole ground fault circuit breaker comprising:

• a first pole circuit breaker with a first molded case and operatively connected with a ground fault circuit module within a second molded case;
• a second pole circuit breaker within a third molded case operatively connected with both said ground fault module and said first pole circuit breaker;
• and
• a power supply circuit within a fourth molded case electrically connected with both said first and second pole circuit breakers and said ground fault module for supplying operating power to said ground module from either of said first or second pole circuit breakers;
• said power supply circuit comprising the parallel combination of a first diode and varistor connecting between said first pole circuit breaker and said ground fault circuit interrupter for providing first DC operating power to said ground fault module and the parallel combination of a second diode and varistor connecting between said second pole circuit breaker and said ground fault module for providing second DC operating power to said ground fault module, said power supply and said ground fault module being electrically interconnected by means of a second pair of insulated wire conductors, first ends of said first and second conductors being electrically connected to pins on a printed wire board supporting said power supply circuit, said power supply case comprising means for retaining said printed wire board such that a bottom edge of said printed wire board is perpendicular to a bottom surface of said power supply case and said first diode and varistor are mounted on said printed wire board parallel to said bottom surface.