KR Series Capacitor Start

Hitachi Electric Motor Capacitor Start KR-Series

The most complicated and expensive single-phase motor is the Capacitor-Start/Capacitor-Run Motor. These motors contain both a starting and running capacitor. Smaller sizes will generally have two capacitor enclosures on the top of the motor, while larger sizes may have both capacitors in a large housing on the side of the motor. Capacitor-start/capacitor-run motors are used over a wide range of single-phase applications primarily for starting hard loads. They are available in sizes ranging from ½ to 25 horsepower; however, common sizes are between 3-and-10 horsepower. Maximum sizes allowed are generally dictated by the electrical power supplier. The speed of this motor varies about 10% from no load to fully loaded conditions. Some capacitor-start/capacitor-run motors are available as multi-speed motors with two-or-three fixed operating speeds when appropriate control equipment is used.

Design for Application:

• Conveyor
• Pump (High Starting Torque)