Industrial Automation Control Products and Systems: Starters@ Contactors@ and Overload Relays Rated Not More Than 2000 Volts AC or 750 Volts DC - Part 9 - AC Vacumm-Break Magnetic Controllers Rated 1500 Volts AC
The standards in this part apply to magnetically-operated@ full-voltage vacuum-break@ non-combination controllers rated 1500 volts for both motor and non-motor loads. The motor-rated controllers are full-voltage for use with squirrel-cage and wound-rotor induction motors. The non-motor loads may be single or three-phase transformer@ capacitor@ heating or lighting loads.?