Multi-speed starters with NEMA open type without enclosure are designed for the control of two speed squirrel cage motors of either consequent pole or separate winding types. These starters are available for constant horsepower, constant torque or variable torque, three-phase motors. Multi-speed motor starters are commonly used on machine tools, fans, blowers, refrigeration compressors and many other types of equipment. Two manual reset overload relay with 14 to 45 A full load current adjustment range.
