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Soft Starter Control Panel
Soft Starter Control Panel
Soft Starter Control Panel

Soft Starter Control Panel
Soft Starter Control Panel

Soft Starter Control Panel

A Soft Starter Control Panel is an advanced motor control solution that gradually applies voltage to an AC induction motor, providing smooth, controlled acceleration and deceleration. 

 

Ensure peak performance for your motors. Our engineering team selects the optimal starter control panel, guaranteeing reliability, efficiency, and longevity in your specific application.

Main benefits soft starter panel

Smooth, controlled acceleration

50% - 75% reduction in starting current

15-30% reduced energy during start cycles

40-60% lower mechanical maintenance

Flexible control and intelligent protection 

Energy cost savings

Main applications

Water Treatment

Oil and Gas industry

Mining industry

Manufacturing industry

Power generation industry

Product Description

Technical Data

Applications

Our Soft Starter Panels deliver controlled, seamless acceleration—extending equipment life, ensuring reliability. Protect your drive, empower your process. 


Principle & Operation 
Utilizes solid-state thyristors to gradually ramp up the voltage supplied to the motor, providing a controlled, smooth acceleration. Unlike Direct-On-Line (DOL) starters that apply full voltage instantly, soft starters use solid-state electronics to manage the starting process, significantly reducing mechanical stress, electrical inrush current, and system disturbances.

 

Key Characteristics:

  • Controlled Inrush Current: Limits start current to 2-4x FLC, minimizing grid impact.
  • Smooth Torque Ramp: Eliminates mechanical jolts, extending equipment lifespan (pumps, belts, gears).
  • Advanced Features: Programmable start/stop profiles, integrated protection, and communication options (Modbus).

 

Typical Application: The preferred solution for medium to large motors driving centrifugal pumps, ventilation fans, compressors, and other applications demanding smooth starts/stops and reduced mechanical stress.

 

Engineered for Every Start: From the Rugged Simplicity of DOL, to the Smooth Intelligence of Soft Start, to the Efficient Reliability of Star-Delta – Your Complete Motor Control Solution, Built for Industry.

 

Choosing between DOL, soft starter, and star-delta electrical control panels?

Our complete motor control solutions include all three technologies. The DOL panel excels in cost-effectiveness for small motors, while soft starters provide smooth acceleration and star-delta starters offer balanced performance for medium-power applications. 

 

Selection Guidance

  • Choose a DOL Starter Control Panel for simplicity and cost-effectiveness with small motors.
  • Select a Soft Starter (SS) Panel to achieve smooth operation, minimize wear, and reduce electrical demand for critical medium/large motors.
  • Opt for a Star-Delta (SD) Starter Panel as a budget-conscious, reliable solution for medium-power motors that start unloaded.

 

Each panel type employs a distinct methodology to manage the critical start-up phase of three-phase induction motors, balancing performance, cost, and system protection.

Feature

DOL Starter Panel

Soft Starter (SS) Panel

Star-Delta (SD) Starter Panel

Starting Current

Very High (6-8 x FLC)

Low to Medium (2-4 x FLC)

Low (~1/3 of DOL current)

Starting Torque

High (100%)

Adjustable, Ramp-up

Low (33%)

Mechanical Shock

High

Very Low

Medium (switching spike)

Cost

Lowest

Higher

Moderate

Complexity

Simple

More Complex

Moderate

Best For

Small motors, High inertia loads

Smooth acceleration, Pump/Fan loads

Medium motors, Light-load starts

Water Treatment

Raw water pumps, transfer pumps, etc.
Eliminates water hammer, reduces pipe stress.

Oil and Gas Industry

Pipeline pumps, compressors, etc.
Reduces mechanical shock, extends seal life.

Mining Industry

Crushers, conveyors, ventilation,etc.
Lower maintenance costs, reduced downtime.

Manufacturing Industry

Machine tools, injection molding, etc.
Improved product quality, smoother operation.

Power generation Industry

Cooling water pumps, ID/FD fans, etc.
Reduced grid impact during starts.

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