Patent ID: 6021034
Filing Date: 2000-02-01
Classification: H02H

Abstract:
A ground fault protection circuit for multiple loads, each load connected across N volts from a 2N Volt power supply comprising:a) n branches, each branch supplying power from said power source to at least one of said loads, where n is equal to or greater than three;b) each branch comprising a ground fault interrupter device comprising:i) a first set of terminals for connection to at least one of said loads;ii) a second set of terminals for connection across N volts from said power source;iii) electronics, including means for powering said ground fault interrupter device;iv) a common line for the electronics separate from a neutral line from the power source to a load; andv) a terminal for the common line of the electronics for the ground fault interrupter device; andc) a first and a second common connection each selectively coupled to at least one terminal for the common lines of the electronics for each ground fault interrupter device.