Motor Starters

A motor starter is a device for motor control applications and is used to start and stop a motor. A starter is an electromechanical switch similar to a relay, the main difference being that a starter contains a contactor and overload protection to prevent electrical overloading of the motor.

Types of Motor Starter

  • DOL Starters - Direct On Line (DOL) or across the line starters are the most common general purpose starter. A magnetic contactor connects the full voltage of the power supply directly to the motor with an overload relay for protection against short circuit, energizing the coil pulls the contactors together to close the circuit and start the device. They are used for motors that are only required to run in one direction at a single speed.
  • Reversing DOL Starters - these motor starters can run a motor either forwards or backwards. These three-button starters are particularly useful for conveyor based machinery, where reversing the direction is sometimes necessary.
  • Star Delta Starter - a reduced voltage motor starter designed to control a three-phase induction motor, the windings in this starter are switched between star and delta connections to start the motor. A star delta circuit will have a contactor configuration within the relay of. triple pole (star) and double throw (delta).
  • Soft Starter - typically used to control AC electric motors a soft starter works by helping reduce the torque and load in the power up and electrical current surges that are typical with motors during their start-up phase. It uses solid-state switches to control the voltage as well as the starting current supplied.

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Description Price Power Rating Motor Starter Type Range Voltage Rating IP Rating Current Rating Phase Number of Poles Motor Starter Functionality Reversibility Additional Features Overall Length Enclosure Overall Width
RS Stock No. 420-508
Mfr. Part No.3RW4027-1BB14
BrandSiemens
TWD14,364.00
Each
units
15 kW - - 480 V ac IP20 32 A 3 - - - - 154mm - 45mm
RS Stock No. 478-4730
Mfr. Part No.ATS01N222QN
TWD9,979.00
Each
units
11 kW - - 415 V IP20 22 A 3 - - - - 130.7mm - 45mm
RS Stock No. 478-4780
Mfr. Part No.ATS01N212QN
TWD5,956.00
Each
units
5.5 kW - - 415 V IP20 12 A 3 - - - - 130.7mm - 45mm
RS Stock No. 420-514
Mfr. Part No.3RW4037-1BB14
BrandSiemens
TWD21,365.00
Each
units
30 kW - - 480 V ac IP00 63 A 3 - - - - 170mm - 55mm
RS Stock No. 609-7628
Mfr. Part No.LD1LD030M
TWD52,686.00
Each
units
55 kW DOL - 690 V ac IP20 - - 3P Automatic - - - - -
RS Stock No. 505-5803
Mfr. Part No.ATS01N103FT
TWD3,085.00
Each
units
1.1 kW - - 480 V IP20 3 A 3 - - - - 100.4mm - 22.5mm
RS Stock No. 666-9740
Mfr. Part No.2297031
TWD6,396.00
Each
units
1 kW - Contactron hybrid motor starter - - - - - - - - - - -
RS Stock No. 272-583
Mfr. Part No.LUCA32BL
TWD3,533.00
Each
units
18.5 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS Stock No. 493-9081
Mfr. Part No.LUCM32BL
TWD18,355.00
Each
units
15 kW - TeSys - - - - - - - - - - -
RS Stock No. 420-502
Mfr. Part No.3RW4026-1BB14
BrandSiemens
TWD12,870.00
Each
units
11 kW - - 480 V ac IP20 25 A 3 - - - - 154mm - 45mm
RS Stock No. 719-1780
Mfr. Part No.2900530
TWD5,383.00
Each
units
4 kW - Contactron hybrid motor starter - - - - - - - - - - -
RS Stock No. 272-454
Mfr. Part No.LUCA05FU
TWD2,961.00
Each
units
3 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS Stock No. 478-4718
Mfr. Part No.ATS01N112FT
TWD4,163.00
Each
units
5.5 kW - - 480 V IP20 12 A 3 - - - - 130.7mm - 45mm
RS Stock No. 609-7505
Mfr. Part No.LC3D12AP7
TWD14,728.00
Each
units
11 kW Star Delta - 440 V ac - - - 3P - - Mechanical Interlock Included 124mm - 143mm
RS Stock No. 746-4940
Mfr. Part No.3RW4026-1BB04
BrandSiemens
TWD13,106.00
Each
units
11 kW - - 400 V IP20 25 A 3 - - - - 154mm - 45mm
RS Stock No. 493-8858
Mfr. Part No.LUB12
TWD1,880.00
Each
units
7.5 hp - TeSys - - - - - - - - - - -
RS Stock No. 822-6118
Mfr. Part No.ATS48D32Y
TWD36,695.00
Each
units
22 kW - - 690 V IP20 32 A 3 - - - - 160mm - 275mm
RS Stock No. 820-0719
Mfr. Part No.ATS01N206RT
TWD4,391.00
Each
units
- - - 460 V ac IP20 6 A 3 - - - - 45mm - 154mm
RS Stock No. 272-432
Mfr. Part No.LUCA12BL
TWD2,724.00
Each
units
9 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS Stock No. 725-5516
BrandRS PRO
TWD1,794.00
Each
units
7.5 kW DOL - 230 V ac IP65 13 → 18 A 3 3P Automatic - Disconnect Switch Not Included 193mm Yes 88mm