All Written-Pole ® single-phase motors are supplied with the controls required for starting and operating, including the starting contactor, overload protection, start/run capacitors, capacitor switching, etc. This ensures that the controls are sized and installed correctly further enhancing performance and reliability.
While their low starting current and high operating efficiency eliminate the need for three-phase power in many applications, Written-Pole® single-phase motors also compare favorably to premium efficiency three-phase motors in many areas. In fact,
Single-phase motors often go beyond three-phase performance, enhancing the system’s performance by reducing starting current requirements to levels below that of three-phase motors and eliminating the need for reactive power through their unity power factor operation.
Written-Pole® motors are constructed with materials and manufacturing methods similar to those used in premium efficiency three-phase motors. These time-proven practices ensure that Written-Pole ® single-phase motors are designed to operate reliably for many years.