KEWO ST200 Online Soft Starter
Online soft starter with the bypass built in, so no external AC contactor is needed.
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Ready built control panel for the ST300 online soft starter.
Soft Starter
Ready built control panel for the ST300 online soft starter.
| ST300 | Description | |
| Input Power Supply | Input Voltage | Three-phase 380V/690 AC |
| Frequency | 50/60Hz | |
| Adaptive Motor | Squirrel-cage three-phase asynchronous motor | |
| Starting Times | It is recommended not to exceed 20 times per hour. | |
| Control Mode | Operation panel control.(2) Operation panel + external control. 3) External control.(4) External control + COM control. (5) Operation panel + external + COM control.(6) Operation panel + COM control. (7) COM control. (8) No start or stop operation. | |
| Start Mode | (1) Current-limiting to start. (2) Voltage ramp to start. (3) Torque control + current-limiting to start. (4) Torque control + voltage ramp to start. (5) Current ramp to start. (6) Voltage current-limiting double closed-loop start. | |
| Stop Mode | (1) Soft stop. (2) Free stop. | |
| Protective Function | (1) Open loop protection for external instantaneous stop terminals. (2) Over-heat protection for soft starter. (3) Protection for too long starting time. (4) Input open phase protection. (5) Output open phase protection. (6) Unbalanced three-phase protection. (7) starting over current protection. (8) Running overload protection. (9) Under voltage protection for power voltage. (10) Overvoltage protection for power voltage. (11) Protection for fault parameter setting. (12) Load short circuit protection. (13) Auto restart or incorrect wiring protection. (14)Incorrect wiring protection of external control stop terminals. | |
| Ambient | Place to be used | Indoor location with good ventilation free from corrosive gas and conductive dust. |
| Altitude | Below 1000M. It have to rise the rate power when the altitude is more than 1000M. | |
| TST300perature | -30 +55 oC | |
| Humidity | 90%RH without dew condensation. | |
| Vibration | <0.5G | |
| Structure | Protection Class | IP20 |
| Cooling Pattern | Natural wind cooling. | |
There is no upload form on this site. Send the motor nameplate photo, the pump curve or the panel drawing straight to WhatsApp or email and an engineer will come back with a model and a price.
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View Product ›FAQ
Yes. A sample can be supplied for testing if you cover the freight cost and send us back your test report. You can also test in our Shenzhen factory in person.
KEWO provides an 18 month guarantee on AD100, AD350, AD800, AS850T and AS850Z products. In-warranty repair is free of charge when the unit is returned, or we send free spare parts and components for you to repair on site.
Send the model, the quantity, the supply voltage and the destination country by WhatsApp or email. There is no form on this site — an engineer replies directly.
Units are full load tested and bar code tracked before packing. Payment can be made by T/T, Western Union or L/C, and we ship worldwide from Shenzhen.
Model, quantity, supply voltage and destination country is all we need to quote.