Ronk's ECONO-PHASE® Shifter and ADD-A-PHASE® static phase converters help provide balanced power to operate your systems. Cost effective three-phase power from your single-phase lines.
Autotransformer-capacitor type static converters are generally recommended for constant load applications, like most fans or pumps, with one or two motors. ADD-A-PHASE® offers very good starting torque, high efficiency, easily accommodates automated controls, and allows operation of the motor at its rated load.View our Phase Converter Usage Guide
Type SAC ADD-A-PHASE® static three-phase converter is designed for most commercial air conditioning systems.Learn More
Type SUB ADD-A-PHASE® static three-phase converter is designed for deep well submersible pump motors and submersible wastewater pump motors.Learn More
Type K-Duo ADD-A-PHASE® static three-phase converter is designed to operate multiple motors to their full load rating and normal overload.Learn More
The Ronk ECONO-PHASE® Shifter is a cost-effective, high efficiency power converter for popular use in pump jack application where Design D high-slip pump jack motors are used. 240V and 480V input and output units available.Learn More
Type S is our standard ADD-A-PHASE® static three-phase converter for most pump, air compressor, and fan and blower applications. Single motor applications only.Learn More
Type AA ADD-A-PHASE® static three-phase converter is designed to handle loads for hydraulic elevators, balers and compaction equipment.Learn More
Type HD ADD-A-PHASE® static three-phase converter is designed for critical use motors, community warning sirens and valve operators. For equipment that must operate under every condition.Learn More
Reliability and safety of electrical systems have never been more important. Ronk's American designed and assembled products are durable, efficient and last for decades.