Ther are some features:
1. Over torque protection: The actuator has an over-torque protection measuring mechanism, which can accurately measure the acting force of the valve. When the motor stops, the valve and the actuator will be protected.
2. Motor overheat protection: There is a thermal relay inside the motor, and the motor will automatically cut off the power supply when the motor is abnormally overheat.
3. Electrical protection: The input and output channels are all optically isolated.
4. Limit protection: The valve position is detected by a precision potentiometer, and four independently adjustable cams are installed on the mechanism to to control the upper and lower limit positions of the actuator.
5. Off signal protection: The regulating actuator has a signal detection circuit. If the input or output is disconnected, the actuator can keep its original flavor and run to the fully closed or fully open emergency position.
6. Hand：wheel operation: Drive handwheel provides emergency manual operation in the event of power failure or actuator failure.
7. High torque low inertia motor: Single-phase or three-phase fully enclosed squirrel-cage induction motors with high starting torque, low rotational inertia and small starting current are used.
