By-pass Soft Starter

By-pass soft starter uses bypass technology to provide smooth motor starting while reducing inrush current and mechanical stress. It is designed for reliable operation of industrial 3-phase motors.

Key Features & Applications

Requires external contactors to complete the bypass function and switches to direct AC operation after start-up to reduce heat and improve efficiency. Suitable for pumps, fans, conveyors, HVAC systems, and other continuous-running industrial equipment.

Technical Parameters

Typical technical parameters of our by-pass soft starters are listed below.
Custom specifications are available upon request.
Parameter Specification
Input Voltage 220V/380V/440V/480V/660V/690V (Three-phase)
Rated Power 5.5KW – 1000KW
Start Method Soft start / Soft stop
Start Time Adjustable 0–60s
Ambient Temperature -10°C to +60°C
Protection Features Overload, Under-voltage, Phase failure, Overheat, Short-circuit
Control Options Local switch (R1) / Remote start (R2)
External Contactor Required Yes, required during installation and wiring for bypass functionality
Download User Manual

Available Models (5.5 kW – 1000 kW)

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