GROUNDGARD SENSOR TYPE: GS MAX. PERMISSIBLE AVAILABLE FAULT CURRENT: 2000 AMPS 2 or 3 PIN TAP OUTSIDE MEASURES: 6 3/4"WIDE X 7" HIGH INCLUDES PINS X 1 1/4" THICK INSIDE DIAMETER: 4 1/4"3512C13H08 Groundgard Sensor by Eaton, Cutler Hammer or Westinghouse