... limit switch BK200/300,are designed for AC 60HZ, rated voltage A.C. up to 660V, rated voltage D ... for operation in distribution system of AC 60HZ, rated voltage A.C. up to 660V, rated ... for operation in electric circuits control the AC voltage up to 660 in the frequency ... degree14Actuating time no more than, second0,04DesignLever with a rollerDegree of protectionIP54Switching on rate in an hour ...