Dol Starter
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Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3TW72911AB74-5HP- 3.7KW DOL STARTER 6.3-10A-200-400VAC
4.67 / 5.0
6 Reviews
Direct on line starter 3.7kW, relay range (6.3 A - 10 A) Control voltage (200 V-400 V)
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹3,490Original price ₹3,490 - Original price ₹3,490Original price ₹3,490Current price ₹2,039₹2,039 - ₹2,039Current price ₹2,039| /
(₹1,728 + GST)
Siemens 3TW72911AB78-10 HP-7.5KW DOL STARTER 12.5-20A 200-400VAC
4.71 / 5.0
7 Reviews
Direct on line starter 7.5 kW, relay range (12.5 A-20 A) Control voltage (200 V-400 V)
Original price ₹3,490Original price ₹3,490 - Original price ₹3,490Original price ₹3,490Current price ₹2,039₹2,039 - ₹2,039Current price ₹2,039| / -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 2.2kW 4-6.3A 415V SS Housing DOL Starter with SPP Birelay - 3TW72911AW72
Direct on line starter 2.2kW, relay range (4 A-6.3 A) Control voltage (415 V)
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3.7kW 6.3-10A 415V SS Housing DOL Starter with SPP Birelay, 3TW72911AW74
4.5 / 5.0
2 Reviews
Direct on line starter 3.7kW, relay range (6.3 A-10 A) Control voltage (415 V)
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹3,335Original price ₹3,335 - Original price ₹3,335Original price ₹3,335Current price ₹1,948₹1,948 - ₹1,948Current price ₹1,948| /
(₹1,651 + GST)
Siemens 3TW72911AB77- 7.5HP- 5.5KW DOL STARTER 10-16A-200-400VAC
Direct on line starter 5.5kW, relay range (10 A - 6 A) Control voltage (200 V-400 V)
Original price ₹3,335Original price ₹3,335 - Original price ₹3,335Original price ₹3,335Current price ₹1,948₹1,948 - ₹1,948Current price ₹1,948| /Request for Quote -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3TW72911AB72-1AB72-3HP- 2.2KW DOL STARTER 4-6.3A-200-400VAC
Siemens 3TW72911AB72-1AB72-3HP- 2.2KW DOL STARTER 4-6.3A-200-400VAC
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /Request for Quote -
Original price ₹3,335Original price ₹3,335 - Original price ₹3,335Original price ₹3,335Current price ₹1,948₹1,948 - ₹1,948Current price ₹1,948| /
(₹1,651 + GST)
Siemens 5.5kW 10-16A 415V SS Housing DOL Starter with SPP Birelay, 3TW72911AW77
Direct on line starter 5.5kW, relay range (10 A -16 A) Control voltage (415 V)
Original price ₹3,335Original price ₹3,335 - Original price ₹3,335Original price ₹3,335Current price ₹1,948₹1,948 - ₹1,948Current price ₹1,948| / -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3TW72911AB71-2HP- 1.5KW DOL STARTER 3.2-5A-200-400VAC
Direct on line starter 1.5 kW, relay range (3.2 A - 5 A) Control voltage (415 V)
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3TW72911AW68- 1HP- 0.75KW DOL STARTER 1.6-2.5A/415 VAC
Direct on line starter 0.75 kW kW,relay range (1.6 A-2.5 A) Control voltage (415 V)
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹3,490Original price ₹3,490 - Original price ₹3,490Original price ₹3,490Current price ₹2,039₹2,039 - ₹2,039Current price ₹2,039| /
(₹1,728 + GST)
Siemens 7.5kW 12.5-20A 415V SS Housing DOL Starter with SPP Birelay, 3TW72911AW78
Direct on line starter 7.5 kW, relay range (12.5 A-20 A) Control voltage (415 V)
Original price ₹3,490Original price ₹3,490 - Original price ₹3,490Original price ₹3,490Current price ₹2,039₹2,039 - ₹2,039Current price ₹2,039| / -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3TW72911AW71- 2HP- 1.5KW DOL STARTER 3.2-5A/415 VAC
5.0 / 5.0
1 Review
Siemens 3TW72911AW71- 2HP- 1.5KW DOL STARTER 3.2-5A/415 VAC
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3TW72911AB68- 1HP-0.75 KW DOL STARTER 1.6-2.5A-200-400VAC
Siemens 3TW72911AB68- 1HP-0.75 KW DOL STARTER 1.6-2.5A-200-400VAC
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3TW72911AW69- 1.5HP- 1.1KW DOL STARTER 2-3.2A/415 VAC
Siemens 3TW72911AW69- 1.5HP- 1.1KW DOL STARTER 2-3.2A/415 VAC
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3TW72911AW66- 0.75HP- 0.55KW DOL STARTER 1-1.6A/415 VAC
Siemens 3TW72911AW66- 0.75HP- 0.55KW DOL STARTER 1-1.6A/415 VAC
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3TW72911AB69- 1.5HP-1.1 KW DOL STARTER IN S.S. HOUSING INCL. BIRELAY 2-3.2A 200-400VAC
Siemens 3TW72911AB69- 1.5HP-1.1 KW DOL STARTER IN S.S. HOUSING INCL. BIRELAY 2-3.2A 200-400VAC
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| /
(₹1,532 + GST)
Siemens 3TW72911AW75- HP- KW DOL STARTER 8-12.5A/415 VAC
Siemens 3TW72911AW75- HP- KW DOL STARTER 8-12.5A/415 VAC
Original price ₹3,095Original price ₹3,095 - Original price ₹3,095Original price ₹3,095Current price ₹1,808₹1,808 - ₹1,808Current price ₹1,808| / -
Original price ₹15,595Original price ₹15,595 - Original price ₹15,595Original price ₹15,595Current price ₹9,109₹9,109 - ₹9,109Current price ₹9,109| /
(₹7,719 + GST)
Siemens 3TW74962AR0 30HP-22kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY
Siemens 3TW74962AR0 30HP-22kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY
Original price ₹15,595Original price ₹15,595 - Original price ₹15,595Original price ₹15,595Current price ₹9,109₹9,109 - ₹9,109Current price ₹9,109| / -
Original price ₹11,070Original price ₹11,070 - Original price ₹11,070Original price ₹11,070Current price ₹6,466₹6,466 - ₹6,466Current price ₹6,466| /
(₹5,480 + GST)
Siemens 3TW74942AR0 20HP-15kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY
Siemens 3TW74942AR0 20HP-15kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY
Original price ₹11,070Original price ₹11,070 - Original price ₹11,070Original price ₹11,070Current price ₹6,466₹6,466 - ₹6,466Current price ₹6,466| / -
Original price ₹9,005Original price ₹9,005 - Original price ₹9,005Original price ₹9,005Current price ₹5,260₹5,260 - ₹5,260Current price ₹5,260| /
(₹4,458 + GST)
Siemens 3TW74932AR0 15HP-11kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY
Siemens 3TW74932AR0 15HP-11kW-415V AC-DOL STARTER IN S.S. HOUSING WITHOUT BIRELAY
Original price ₹9,005Original price ₹9,005 - Original price ₹9,005Original price ₹9,005Current price ₹5,260₹5,260 - ₹5,260Current price ₹5,260| / -
Siemens 3TW72911AB64- 0.33HP-0.25 KW DOL STARTER IN S.S. HOUSING INCL. BIRELAY 0.63-1A 200-400VAC
Siemens 3TW72911AB64- 0.33HP-0.25 KW DOL STARTER IN S.S. HOUSING INCL. BIRELAY 0.63-1A 200-400VAC
Original price ₹0 - Original price ₹0Original price ₹0₹0₹0 - ₹0Current price ₹0| /Request for Quote -
Siemens 3TW72911AB68- 1HP-0.75 KW DOL STARTER 1.6-2.5A-200-400VAC
Siemens 3TW72911AB68- 1HP-0.75 KW DOL STARTER 1.6-2.5A-200-400VAC
Original price ₹0 - Original price ₹0Original price ₹0₹0₹0 - ₹0Current price ₹0| /Request for Quote -
Siemens 3TW72911AB74-5HP- 3.7KW DOL STARTER 6.3-10A-200-400VAC
Direct on line starter 3.7kW, relay range (6.3 A - 10 A) Control voltage (200 V-400 V)
Original price ₹0 - Original price ₹0Original price ₹0₹0₹0 - ₹0Current price ₹0| /Request for Quote -
Original price ₹4,310Original price ₹4,310 - Original price ₹4,310Original price ₹4,310Current price ₹2,085₹2,085 - ₹2,085Current price ₹2,085| /
(₹1,767 + GST)
ABB MA-0.75 400 ... 415 V coil
ABB MA-0.75 400 ... 415 V coil
Original price ₹4,310Original price ₹4,310 - Original price ₹4,310Original price ₹4,310Current price ₹2,085₹2,085 - ₹2,085Current price ₹2,085| / -
Original price ₹4,310Original price ₹4,310 - Original price ₹4,310Original price ₹4,310Current price ₹2,085₹2,085 - ₹2,085Current price ₹2,085| /
(₹1,767 + GST)
ABB MA-5.00 400 ... 415 V coil
ABB MA-5.00 400 ... 415 V coil
Original price ₹4,310Original price ₹4,310 - Original price ₹4,310Original price ₹4,310Current price ₹2,085₹2,085 - ₹2,085Current price ₹2,085| /
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 starters are best for small motors that needs full power startup without speed control. The major benefits of this starter is that it is simple, easy to access and low cost solution for small motors. And DOL starter is a popular choice because of its simplicity and effectiveness for smaller, straightforward motor applications.
DOL Starter from our Leading Brand Siemens
A Siemens DOL starter is an electrical device that is made to effectively and safely start and stop electric motors. Offering a variety of motor starters that represent state-of-the-art technology and unparalleled performance, this company is a global leader in electrification, automation, and digitization. Siemens motor starters are the pinnacle of performance and cutting-edge technology. With the highest accuracy and efficiency, a Siemens motor starter guards against damage from overloads, short circuits, and other electrical issues while protecting the electric motor and electrical circuit.
Key Components of DOL Motor Starter
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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.
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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.
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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.
How Does DOL Starter Works
- Full Voltage: When the starter is turned on, the motor gets full power right away, starting it immediately with maximum force.
- High Starting Current: This full power causes a high surge in current, usually 6–8 times the normal running current.
- Instant Speed: There’s no slow buildup of power, so the motor reaches full speed very quickly.
Frequently Asked Questions
Q1. What is a Direct On-Line (DOL) motor starter?
Ans. 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.
Q2. How does a DOL motor starter work?
Ans. 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.
Q3. What is the purpose of an overload relay in a DOL starter?
Ans. 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.