"INPUT 120/208 VOLTS, 3 PHASE, 4 WIRE, 60 HZ SELF POWERED WORKING RANGE; OUTPUT 0-1 MA < 7500 OHMS < 27 VOLT MAX OPEN VOLTAGE; ELEMENTS: 2.5; CASE MATERIAL: GRAY POLYCARBONATE PER UL94V0; CONNECTION TERMINALS: CORROSION RESISTIVE SCREWS WITH CAPTIVE WASHERS; RANGE 0-100 KW"