DOL Motor Starter

DOL Motor Starter

Direct-On-Line Starters are the most common type of AC motor Starters used for switching AC Motors/Submersible pumps up to 15 HP at three phase 415V AC. When energized, a direct on line (DOL) starter immediately connects the motor terminals directly to the power supply. A direct on line starter can be used if the high inrush current of the motor does not cause excessive voltage drop in the supply circuit.

Salient Features


  • Heavy duty 4 Pole contactor for trouble free switching operations.
  • Thermal Bi-Metallic overload relay for reliable overload protection.
  • The contacts are made of high qualilty sliver cadmium oxide material to withstand extreme field conditions.
  • Deep Drawn CR sheet steel housing.

Deep Drawn CR Sheet Enclosure

Current Overload Protection

Heavy Duty 4 Pole Contractor

Silver Cadmium Oxide Contacts used

BOPARAI DOL Motor Starter Boparai Direct-On-Line AC Motor Starter

DOL Motor Starter