NSI National Oil Immersed D.O.L. Starter & THREE Phase Submersible Panel

NSI National Oil Immersed D.O.L. Starter & THREE Phase Submersible Panel


  • National


  • Panel


Availability : Many In Stock

The NSI National Oil Immersed D.O.L. Starter is a heavy-duty 3-phase motor control panel engineered for agricultural and industrial environments. Using oil-immersed arc-quenching technology, it provides superior cooling, longer contact life, and safer motor operation compared to conventional starters. Integrated Single Phase Preventer (SPP) and digital volt/amp monitoring ensure complete protection against phase failure, voltage imbalance, and overloads. This starter is perfect for borewell pumps, irrigation systems, and industrial machinery requiring dependable motor starting.

  • Brand: NSI National
  • Starter Type: Oil Immersed D.O.L. Starter
  • Motor Phase: Three Phase
  • Protection: Single Phase Preventer (SPP), Fuse Protection
  • Monitoring: Digital Volt Meter & Ampere Meter
  • Control Type: Manual Start / Stop Push Buttons
  • Indicators: Oil Level Marking, Digital Display
  • Mounting: Panel Mounted with Backplate
  • Application Area: Agriculture & Industrial


  • Oil Immersed Technology Oil-filled chamber efficiently quenches arcs, improves cooling, and increases contact life.
  • Single Phase Preventer (SPP) Automatically protects motors from single-phase failure and voltage imbalance.
  • Digital Volt & Ampere Display Real-time monitoring of electrical parameters for better control and safety.
  • Triple Fuse Protection Heavy-duty ceramic fuse holders provide primary over-current protection.
  • Industrial Push Button Controls Large START (Green) and STOP (Red) buttons for easy field operation.
  • Heavy-Duty Terminal Block Clearly labeled, high-capacity terminals ensure safe and secure motor connections.
Where can I buy the NSI National 3-Phase Starter in Raipur, Bilaspur, or Durg? +

Available through authorized agricultural pump dealers, industrial electrical suppliers, and machinery shops across Chhattisgarh.

What motor capacities are supported? +

Available in 3 HP, 5 HP, 7.5 HP, and 10 HP models for 3-phase submersible and open-well motors.

What are the advantages of oil-immersed contacts? +

The oil chamber quenches electrical arcs rapidly, dissipates heat efficiently, and prevents contact wear, extending starter life in harsh farm and factory settings.

How does the panel protect against electrical faults? +

It features a Single Phase Preventer (SPP) to guard against phase loss/imbalance, alongside heavy-duty ceramic triple fuse protection against over-current.

How do I monitor performance on this starter? +

A digital volt and ampere meter gives real-time voltage and current readings, while a built-in indicator allows quick checking of the oil level.

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