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Vashi Integrated Solutions is One-stop integrated products and solutions provider for all industrial and commercial sourcing needs
Vashi Integrated Solutions is One-stop integrated products and solutions provider for all industrial and commercial sourcing needs

Dol Motor Starter

  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3TW72911AB74-5HP- 3.7KW DOL STARTER 6.3-10A-200-400VAC

    In stock

    Direct on line starter 3.7kW, relay range (6.3 A - 10 A) Control voltage (200 V-400 V)

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹4,146
    Original price ₹4,146 - Original price ₹4,146
    Original price ₹4,146
    Current price ₹2,544
    ₹2,544 - ₹2,544
    Current price ₹2,544

    Siemens 3TW72911AB78-10 HP-7.5KW DOL STARTER 12.5-20A 200-400VAC

    In stock

    Direct on line starter 7.5 kW, relay range (12.5 A-20 A) Control voltage (200 V-400 V)

    Original price ₹4,146
    Original price ₹4,146 - Original price ₹4,146
    Original price ₹4,146
    Current price ₹2,544
    ₹2,544 - ₹2,544
    Current price ₹2,544
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3.7kW 6.3-10A 415V SS Housing DOL Starter with SPP Birelay, 3TW72911AW74

    In stock

    Direct on line starter 3.7kW, relay range (6.3 A-10 A) Control voltage (415 V)

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 2.2kW 4-6.3A 415V SS Housing DOL Starter with SPP Birelay - 3TW72911AW72

    In stock

    Direct on line starter 2.2kW, relay range (4 A-6.3 A) Control voltage (415 V)

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹3,888
    Original price ₹3,888 - Original price ₹3,888
    Original price ₹3,888
    Current price ₹2,386
    ₹2,386 - ₹2,386
    Current price ₹2,386

    Siemens 3TW72911AB77- 7.5HP- 5.5KW DOL STARTER 10-16A-200-400VAC

    In stock

    Direct on line starter 5.5kW, relay range (10 A - 6 A) Control voltage (200 V-400 V)

    Original price ₹3,888
    Original price ₹3,888 - Original price ₹3,888
    Original price ₹3,888
    Current price ₹2,386
    ₹2,386 - ₹2,386
    Current price ₹2,386
  • Original price ₹3,888
    Original price ₹3,888 - Original price ₹3,888
    Original price ₹3,888
    Current price ₹2,386
    ₹2,386 - ₹2,386
    Current price ₹2,386

    Siemens 5.5kW 10-16A 415V SS Housing DOL Starter with SPP Birelay, 3TW72911AW77

    In stock

    Direct on line starter 5.5kW, relay range (10 A -16 A) Control voltage (415 V)

    Original price ₹3,888
    Original price ₹3,888 - Original price ₹3,888
    Original price ₹3,888
    Current price ₹2,386
    ₹2,386 - ₹2,386
    Current price ₹2,386
  • Original price ₹4,146
    Original price ₹4,146 - Original price ₹4,146
    Original price ₹4,146
    Current price ₹2,544
    ₹2,544 - ₹2,544
    Current price ₹2,544

    Siemens 7.5kW 12.5-20A 415V SS Housing DOL Starter with SPP Birelay, 3TW72911AW78

    In stock

    Direct on line starter 7.5 kW, relay range (12.5 A-20 A) Control voltage (415 V)

    Original price ₹4,146
    Original price ₹4,146 - Original price ₹4,146
    Original price ₹4,146
    Current price ₹2,544
    ₹2,544 - ₹2,544
    Current price ₹2,544
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3TW72911AB72-1AB72-3HP- 2.2KW DOL STARTER 4-6.3A-200-400VAC

    In stock

    Siemens 3TW72911AB72-1AB72-3HP- 2.2KW DOL STARTER 4-6.3A-200-400VAC

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3TW72911AW68- 1HP- 0.75KW DOL STARTER 1.6-2.5A/415 VAC

    In stock

    Direct on line starter 0.75 kW kW,relay range (1.6 A-2.5 A) Control voltage (415 V)

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3TW72911AB71-2HP- 1.5KW DOL STARTER 3.2-5A-200-400VAC

    In stock

    Direct on line starter 1.5 kW, relay range (3.2 A - 5 A) Control voltage (415 V)

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3TW72911AW71- 2HP- 1.5KW DOL STARTER 3.2-5A/415 VAC

    In stock

    Siemens 3TW72911AW71- 2HP- 1.5KW DOL STARTER 3.2-5A/415 VAC

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3TW72911AB68- 1HP-0.75 KW DOL STARTER 1.6-2.5A-200-400VAC

    In stock

    Siemens 3TW72911AB68- 1HP-0.75 KW DOL STARTER 1.6-2.5A-200-400VAC

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3TW72911AW66- 0.75HP- 0.55KW DOL STARTER 1-1.6A/415 VAC

    In stock

    Siemens 3TW72911AW66- 0.75HP- 0.55KW DOL STARTER 1-1.6A/415 VAC

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3TW72911AB69- 1.5HP-1.1 KW DOL STARTER IN S.S. HOUSING INCL. BIRELAY 2-3.2A 200-400VAC

    In stock

    Siemens 3TW72911AB69- 1.5HP-1.1 KW DOL STARTER IN S.S. HOUSING INCL. BIRELAY 2-3.2A 200-400VAC

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹10,008
    Original price ₹10,008 - Original price ₹10,008
    Original price ₹10,008
    Current price ₹6,140
    ₹6,140 - ₹6,140
    Current price ₹6,140

    Siemens 3TW74932AR0 15HP-11kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY

    In stock

    Siemens 3TW74932AR0 15HP-11kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY

    Original price ₹10,008
    Original price ₹10,008 - Original price ₹10,008
    Original price ₹10,008
    Current price ₹6,140
    ₹6,140 - ₹6,140
    Current price ₹6,140
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3TW72911AW75- HP- KW DOL STARTER 8-12.5A/415 VAC

    In stock

    Siemens 3TW72911AW75- HP- KW DOL STARTER 8-12.5A/415 VAC

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹2,732 - Original price ₹2,732
    Original price
    ₹2,732
    ₹2,732 - ₹2,732
    Current price ₹2,732

    ABB MA-0.75 400 ... 415 V coil

    In stock

    ABB MA-0.75 400 ... 415 V coil

    Original price ₹2,732 - Original price ₹2,732
    Original price
    ₹2,732
    ₹2,732 - ₹2,732
    Current price ₹2,732
  • Original price ₹2,732 - Original price ₹2,732
    Original price
    ₹2,732
    ₹2,732 - ₹2,732
    Current price ₹2,732

    ABB MA-5.00 400 ... 415 V coil

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    ABB MA-5.00 400 ... 415 V coil

    Original price ₹2,732 - Original price ₹2,732
    Original price
    ₹2,732
    ₹2,732 - ₹2,732
    Current price ₹2,732
    Enquire Now
  • Original price ₹2,732 - Original price ₹2,732
    Original price
    ₹2,732
    ₹2,732 - ₹2,732
    Current price ₹2,732

    ABB MA-3.00 400 ... 415 V coil

    Enquire Now

    ABB MA-3.00 400 ... 415 V coil

    Original price ₹2,732 - Original price ₹2,732
    Original price
    ₹2,732
    ₹2,732 - ₹2,732
    Current price ₹2,732
    Enquire Now
  • Original price ₹2,732 - Original price ₹2,732
    Original price
    ₹2,732
    ₹2,732 - ₹2,732
    Current price ₹2,732

    ABB MA-1.00 400 ... 415 V coil

    Enquire Now

    ABB MA-1.00 400 ... 415 V coil

    Original price ₹2,732 - Original price ₹2,732
    Original price
    ₹2,732
    ₹2,732 - ₹2,732
    Current price ₹2,732
    Enquire Now
  • Original price ₹28,656
    Original price ₹28,656 - Original price ₹28,656
    Original price ₹28,656
    Current price ₹17,584
    ₹17,584 - ₹17,584
    Current price ₹17,584

    Siemens 3TW74982AR0 50HP-37kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY

    Low stock

    Siemens 3TW74982AR0 50HP-37kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY

    Original price ₹28,656
    Original price ₹28,656 - Original price ₹28,656
    Original price ₹28,656
    Current price ₹17,584
    ₹17,584 - ₹17,584
    Current price ₹17,584
  • Original price ₹17,328 - Original price ₹17,328
    Original price ₹17,328
    ₹17,328
    ₹17,328 - ₹17,328
    Current price ₹17,328

    Siemens 3TW74962AR0 30HP-22kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY

    Enquire Now

    Siemens 3TW74962AR0 30HP-22kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY

    Original price ₹17,328 - Original price ₹17,328
    Original price ₹17,328
    ₹17,328
    ₹17,328 - ₹17,328
    Current price ₹17,328
    Enquire Now
  • Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190

    Siemens 3TW72911AB75 DOL STARTER IN S.S. HOUSING INCL. BIRELAY 8-12.5A 200-400VAC

    In stock

    Siemens 3TW72911AB75 DOL STARTER IN S.S. HOUSING INCL. BIRELAY 8-12.5A 200-400VAC

    Original price ₹3,570
    Original price ₹3,570 - Original price ₹3,570
    Original price ₹3,570
    Current price ₹2,190
    ₹2,190 - ₹2,190
    Current price ₹2,190
  • Original price ₹22,092
    Original price ₹22,092 - Original price ₹22,092
    Original price ₹22,092
    Current price ₹13,555
    ₹13,555 - ₹13,555
    Current price ₹13,555

    Siemens 3TW74972AR0 40HP-30kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY

    Enquire Now

    Siemens 3TW74972AR0 40HP-30kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY

    Original price ₹22,092
    Original price ₹22,092 - Original price ₹22,092
    Original price ₹22,092
    Current price ₹13,555
    ₹13,555 - ₹13,555
    Current price ₹13,555
    Enquire Now

Dol Starter: Buy Dol Motor Starter

 DOL starter, also known as a direct-on-line starter, is a method of starting a 3-phase induction motor. In a DOL starter, a three-phase induction motor is connected directly across its 3-phase supply, and the DOL starter applies the full line voltage to the motor terminals. Direct-on-Line (DOL) Starter are highly reliable, time-tested, and suitable for wide range of agriculture and industrial applications
The DOL starter consists of a contactor and an overload relay. When the motor is started, the contactor closes and connects the motor directly to the power supply. The overload relay is used to protect the motor against excessive current.

DOL motor starter works:

Contactor: The contactor is an electromechanical switch that controls the power supply to the motor. It has a coil that, when energized, closes the main contacts and connects the motor to the power source.
Overload Relay: The overload relay is a protective device that senses the current flowing through the motor. If the current exceeds a preset value, indicating an overload condition, the overload relay trips and opens the contactor, disconnecting the motor from the power supply. This protects the motor from damage due to overheating.
Start/Stop Buttons: The DOL starter has separate start and stop buttons. Pressing the start button energizes the contactor coil, closing the main contacts and supplying power to the motor. The stop button de-energizes the contactor coil, opening the contacts and stopping the motor.
Thermal Overload Protection: In addition to the overload relay, DOL starters often include thermal overload protection. This is achieved using thermal elements embedded in the motor windings. If the temperature of the windings exceeds a certain limit, the thermal elements trip and open the circuit, disconnecting the motor from the power supply.
DOL Motor Starters are commonly used for small to medium-sized motors where the starting current is not excessive. They are simple, reliable, and cost-effective. However, they can cause high starting currents and mechanical stresses on the motor and connected equipment, which may need to be considered in certain applications. In cases where a reduced starting current is required, alternative starting methods such as star-delta or soft starters may be employed.

Q: What is a Direct On-Line (DOL) motor starter?
A: A DOL motor starter is a simple and widely used method for starting and stopping electric motors. It provides full voltage to the motor during the starting phase without any reduction in voltage or current.

Q: How does a DOL motor starter work?
A: A DOL starter consists of a contactor, an overload relay, and start/stop buttons. When the motor is started, the contactor closes, connecting the motor directly to the power supply. The overload relay protects the motor against excessive current. The start button energizes the contactor, and the stop button de-energizes it.

Q: What is the purpose of an overload relay in a DOL starter?
A: The overload relay in a DOL starter is a protective device that senses the current flowing through the motor. If the current exceeds a preset value, indicating an overload condition, the overload relay trips and opens the contactor, disconnecting the motor from the power supply. This protects the motor from overheating and damage.