Insulator Material: PBT &30% Glass Fiber(UL 94V-0) Contact Resistance: 30MΩ at DC 100MA Insulator Resistance: 1000MΩ Min at DC 250V Current Rating: 1 AMP Dielectric Withstanding Voltage: AC 500V for 1 minute Temperature Rating: -55°C ~+ 150°C Contract Material: Phospher Bronze