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STS Single Phase Soft Start

Introducing the 1P100-ST

The world's First Single Phase Soft Start

that eliminates light flicker.    

RHEEM Approval Letter


Maui Electric Co. Approval Letter


Maui Pictures


Makena Test Data


 Reduce Inrush &

 Light Flicker caused

 by  Compressor Cycling



The first Single Phase, 208/240 VAC Soft Start

 for 3,4 & 5 Ton Residential & Commercial

 Air Conditioners


Finally a solution to annoying LIGHT FLICKER!
The new 1P100-ST IntegraPower is the only available specially engineered SCR Soft Start that will meet mandatory Rule 2 compliance for Maui County or other Municipalities that require limiting Inrush below 100 AMPS.  This is also the only Soft Start that is approved by Rheem Mfg for use on their new or existing 4 & 5 ton Air Conditioners, without violating the WARRANTY.

1P100-ST uses the latest Digital Signal Processor (DSP) and is easily connected in series between the energy source and motor, making the installation fast and easy. The Soft Start feature is optimized through advanced proprietary software used to program the Texas Instruments solid state DSP. This solid state, NASA inspired technology incorporates silicon rectifier switches, which will deliver years of reliable and maintenance free service. 

Rheem has approved the 1P100-ST soft start after extensive testing and Copeland inspected the AC compressor that was tested, which revealed no unusual wear or damage.