metal push button switch Type: XB2-BJ33 Description: Selector Switches 3 position ... voltage: 2500V AC, 1min 6) contact resistance: ≤ 50mΩ 7) Mechanical durability: Monentary 1000, 000, maintained 250, 000 8) Electrical durability ... : 500, 000 9) Protection grade: IP6510)Certificate: CCC, CE metal push button switch