CT17-I and CT17-II type spring operating mechanism General CT17-I and CT17-II type spring operating mechanisms are available for operating 10kV, 20KA, ,25kA and 31.5kA series indoor VCB, which are adopted the unilateral hanging type spring configuration with the function of energy stored by power or by manual, CO operation respectively by power and manual and over current protected. They are widely used for varies kinds of VCB, especially suitable for ZN13, ZN28 and ZN 38 series, and characterized by small dimension, low noise and long mechanical life (above 10000 operations cycles). Overall dimension (H*W*D): 400*440*140(mm) Weight:? about 23kg. Main Technical Data: No.? Item Data? 1 Closing power 70~150J 2 Rated power of motor 70~120W 3 Contact at frequent CO of travel switch 2 pairs 4 Contact at frequent CO of auxiliary switch 6 pairs 5 Rated voltage of motor AC/DC 110V, AC/DC 220V 6 Output turning angle of mechanism 400~500 7 Energy-stored duration =15secs 8 Mechanical life 10000 cycles

CT17S and CT17G Spring Operating Mechanism General description CT17S type spring operating mechanisms are available for operating 10kV, 20KA, 25kA, 31.5kA and 40kA series indoor VCB, they are adopted the bilateral hanging type spring configuration with the function of energy stored respectively by power or by manual. And it can be equipped with three overcurrent protectors and one undervoltage protector. With the good property and convenient maintenance, especially suitable for ZN13, ZN28 and ZN 38 series VCB. Overall dimension (H*W*D): 418*360*150(mm) Weight: about 26kg. CT17G type spring operating mechanism is in compliance with fixed switchgear; it is also adopted bilateral hanging spring type configuration. Switching capacity is 20kA~40kA. Overall dimension: (H*W*D): 450*335*150(mm) Main Technical Data No. Item Data 1 Closing power 70~150J 2 Rated power of motor 70~120W 3 Contact at frequent CO of travel switch 2 pairs 4 Contact at frequent CO of auxiliary switch 6 pairs 5 Rated voltage of motor AC/DC 110V, AC/DC 220V 6 Output turning angle of mechanism 400~500 7 Energy-stored duration =15secs 8 Mechanical life 10000 operation cycles