... maintenance, and other characteristics.The advantages of the electric actuator is convenient, energy access and the speed ... higher sensitivity and accuracy, with the convenience and the electric control instruments, install the wiring simple. The disadvantage ... parameters (1) Power Supply: General: Three-phase 380V 50Hz special: 220V, 110V, 380V, 415V, 660V, 50Hz, 60Hz, etc. Ambient temperature: ...