Paragon POI Star Delta Semi Starter | Oil-Immersed 3-Phase Motor Starter

Paragon POI Star Delta Semi Starter | Oil-Immersed 3-Phase Motor Starter


  • Paragon Engineers


  • Starter


Availability : Many In Stock

The Paragon POI Star Delta Semi Starter is a durable oil-immersed semi-automatic starter designed for safe and efficient starting of three-phase induction motors. It reduces inrush current and mechanical stress by starting the motor in star mode and manually switching to delta mode for full-load operation. Built with oil-quenching protection, overload safety, and rugged construction, this starter ensures reliable performance in demanding industrial environments, making it ideal for pumps, compressors, conveyors, and machinery motors.

  • Product Name: Paragon POI Star Delta Semi Starter
  • Starter Type: Oil-Immersed, Semi-Automatic Star-Delta
  • Motor Type: 3-Phase Induction Motors
  • Operation: Manual transition from star to delta
  • Starting Method: Reduced voltage start
  • Protection: Overload relay & no-volt protection
  • Construction: Oil-immersed contacts and relays
  • Voltage: 380V / 415V / 440V (typical for 3-phase systems)
  • Frequency: 50Hz
  • Enclosure: Rugged sheet metal body
  • Suitable Load: Light to medium torque motors
  • Application: Industrial motor control


  • Semi-Automatic Star-Delta Operation – Manual transition for controlled motor startup
  • Oil-Immersed Design – Superior arc quenching and insulation for long life
  • Reduced Starting Current – Protects motor and power supply from stress
  • Overload & No-Volt Protection – Adjustable relay and undervoltage safety
  • Heavy-Duty Construction – Rugged metal body for industrial durability
What is a Star Delta Semi Starter? +

It is a reduced-voltage motor starter that begins in star mode and manually switches to delta for full operation.

Which motors is it suitable for? +

It is designed for three-phase induction motors used in industrial applications.

Does it provide motor protection? +

Yes, it includes overload relay and no-volt protection for safe operation.

Where is this starter commonly used? +

In pumps, compressors, conveyors, HVAC systems, and machinery motors.

Why choose an oil-immersed starter? +

Oil immersion provides better arc quenching, insulation, and longer service life.

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