... German VDE0660, IEC947-5-1 (1990), GB14048.5 standards, multi-control functions with small size, light weight, durable, resistant ... terminals, shipbuilding industry and other industries. A. the contactless controller is suitable for DC 50V, below 300mA current, the ... loop controlled by PC / PLC C. the contactless analog controller is suitable for Frequency Control, DC Speed, reversible main ...