220V Single-Phase Motor Soft Starter Module controller2KW4KW6KW8KW Motor Online Soft Starting Fan Pump Pressure Reducer Conveyor (Color : SSR 200WA R2(8KW))

Using this module to start 2HP pump. Works well reducing starting torque of motor. I used the the 8KW module to ensure it could handle surge current. There is no cooling provided with module. Fan pictured in marketing literature is not provided. When used, these modules must be cooled via the large heat sink on the back of the module. What ever KW rating the module is requires an equal KW heat dissipation.

I am reviewing my electric usage to maximise efficiency and minimize generator size. Critical items for winter like the furnace two freezers and all electronics are now set up to run on one 2400w ultra quiet inverter/'generator with a high surge capability it runs on gasoline, natural gas and propane for redundancy. I want to run the rest of the house on a medium sized generator of 4200 running watts. My in rush current on the well is 33 amps at 220 volts and that puts me a 7260watts by itself. I bought the 8k soft start to minimize that. SETUP: The soft start came with no instructions and most of the markings are in chinese. The two adjustments have no scale. I roughly set the start up voltage to 20% and the time to 2 seconds, started it up and watched the pressure guage. It did not go up for over 2 seconds. I readjusted to around 25% for no change. Tried 30% and the pressure increased immediatly meaning the pump rotor was not stalled or locked. The inrush current was 19 amps. I readjusted the time to about 3 seconds and the inrush current came in at 16 amps. That means 3200 amps startup on a 4200 watt generator without using any of the generstor surge capability. I am sure that I can further reduce the inrush current by increasing the startup time but tht will be another day.

maybe 0-30 second start time; 0-50% setting for minimum boost needed to get something moving?