... of ABS or PC or steal or aluminum, and the terminal block is made of bakelite which is moisture-resistant, fire-retardant ... ,etc.Rated current(A)1.5(6), 2.5(10), 5(20), 10(40)A,15(60), 20(80), 30(100),etc ... temperature-35°C ~ +75°CRelative Humidity≤85%Service lifeMore than 10 years Wiring Diagram TerminalNote1Inlet phase line3Inlet neutral line4Outgoing neutral line5Outgoing ...