Product Description Used for automatic control and the protect circle of aur conditioning , drying machine and refrigerating machine . Product Feature Coil voltage : AC230V \AC220V \AC110V Voltage range: 85%~110% suitable refrigerant : R12\R22\R134A\R502A\R600A ect. Medium temperature:-20°C~120°C Environmental temperature :-20°C~55°C The highest working pressure:3.0 Mpa Interior leak : less than 300mL/min Life :100,000 times Temperature rise : Less than 65°C