Applicable to 50~60Hz; Power Range: 240V AC control circuits 3A Suitable for machine mechanical automatically control restrict movement and transmission mechanism process control.; Working temperature: 5~65'C; Altitude: 2000m; Waterproof grade: IP65; Conforms to IEC337-1 and GB14048.5-2001 standard; Double-loop type; Shell is made of special metal alloy composition structure rugged small size waterproof and anti-oil; Built in micro-switches w/ double reed structural mechanical performance and longer life; Having a larger OT action easy wiring of pipe design; Easy to use can be adjusted to required operating position.