Soft Starter
ST200 Online Intelligent Soft Starter Without Bypass
An intelligent online soft starter that starts and stops the motor steplessly, removing the mechanical and electrical shock of direct or star-delta starting.

ST200 motor soft starter is a new type motor starting and protection device that is integrated with power electronic technology, microprocessor and automatic control. This soft starter is able to steadily start and stop motor without step change so as to avoid mechanical or electric impact resulted from using conventional starting modes such as direct starting, star-delta starting and auto voltage reducing starting, and effectively reduce starting current and distribution capacity. No need to built by pass contactor with SCR controlling new technology applying—-innovation and cost saving. ST200 Online Soft Starter 3phase 380V For Motor Not By Pass Contactor Multiple Motor Protection Functions Phase missing protection Over heat protection Over current and over load protection Output unbalance protection Under voltage and over voltage protection Load circuit protection Under load protection
Ask about ST200 on WhatsApp Email for pricing
Sold to buyers in Philippines, Turkey, Morocco and beyond.

Problems it solves
Why this model gets specified
Direct-on-line starting shocks couplings, belts and the supply. Stepless soft start and soft stop remove the step change.
A bypass contactor is one more component to specify, wire and replace. ST200 needs none.
Conventional starters protect the motor poorly. Integrated microprocessor control adds motor starting and protection in one device.
Who it is for: OEMs and contractors replacing star-delta or auto-transformer starters on pumps, fans and conveyors.
Key benefits
ST200 motor soft starter is a new type motor starting and protection device that is integrated with power electronic technology, microprocessor and automatic control
No need to built by pass contactor with SCR controlling new technology applying—-innovation and cost saving
Technical specifications
As published for this series. Confirm the exact figures for your model code with Boray before ordering.
| Altitude | Below 1000M. It have to rise the rate power when the altitude is more than 1000M. TST200perature -30 +55 oC Humidity 90%RH without dew condensation. Vibration <0.5G Structure Protection Class IP20 |
|---|---|
| Cooling | Pattern Natural wind cooling |
Before you order the ST200 Online Intelligent Soft Starter Without Bypass
Four or five details decide the model code. These are the ones that matter for this series:
- Apply derating
- Altitude: Below 1000M. It have to rise the rate power when the altitude is more than 1000M. TST200perature -30 +55 oC Humidity 90%RH without dew condensation. Vibration <0.5G Structure Protection Class IP20
Every Boray unit is full-load tested before delivery, and the customised VFD programme can adapt function set, protection rating and mechanical arrangement where a standard model does not fit. Operation manuals and wiring diagrams are issued per model code — request them with your enquiry.
Frequently Asked Questions
What is the difference from a conventional starter?
ST200 starts and stops the motor steplessly, avoiding the mechanical and electrical impact of direct, star-delta and auto voltage reducing starting.
Is a bypass contactor needed?
No. There is no need to build in a bypass contactor.
What technology does it use?
Power electronic technology with a microprocessor and automatic control integrated in one device.
Does it protect the motor as well as start it?
Yes, it is a combined motor starting and protection device.
Which motors is it intended for?
AC motors on loads that suffer from the shock of conventional starting methods. Confirm the exact frame and duty with Boray.
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View specifications →Request pricing for the ST200 Online Intelligent Soft Starter Without Bypass
Send the motor rating, supply voltage and site conditions. Boray confirms the model code, options and lead time — documentation is available on request.
WhatsApp +86 189 2640 9646 Email the engineering team All contact details
