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. 135-9721
BrandRS PRO
SGD350.98
Each
units
7.5 kW Soft Start - 400 V ac IP20 16 A 2 - - - - 45mm - 110mm
RS Stock No. 135-9718
BrandRS PRO
SGD385.05
Each
units
11 kW Soft Start - 400 V ac IP20 25 A 2 - - - - 45mm - 173mm
RS Stock No. 135-9720
BrandRS PRO
SGD636.85
Each
units
22 kW Soft Start - 400 V ac IP20 45 A 2 - - - - 52.5mm - 178mm
RS Stock No. 135-9719
BrandRS PRO
SGD523.95
Each
units
15 kW Soft Start - 400 V ac IP20 32 A 2 - - - - 45mm - 173mm
RS Stock No. 725-5531
BrandRS PRO
SGD173.76
Each
units
7.5 kW DOL - 400 V ac IP65 13 → 18 A 3 3P Automatic - Disconnect Switch Included 225mm Yes 110mm
RS Stock No. 212-8683
BrandRS PRO
SGD403.08
Each
units
2.2 kW Soft Start - 460 V ac - 5.5 A 3 - - - - 120mm - 45mm
RS Stock No. 909-4079
BrandRS PRO
SGD116.78
Each
units
4.5 kW DOL - 415 V IP55 7 → 10 A 3 3PST Manual - Colour RAL 7035 Light Grey, Hand Reset Thermal Overloads, Provision for Remote Control 104mm Yes 174mm
RS Stock No. 725-5529
BrandRS PRO
SGD185.15
Each
units
5.5 kW DOL - 400 V ac IP65 9 → 14 A 3 3P Automatic - Disconnect Switch Included 225mm Yes 110mm
RS Stock No. 351-4748
Mfr. Part No.LE1GBKO55N7
SGD138.30
Each
units
5.5 kW DOL - 415 V ac IP65 - - - Automatic - - 212mm Yes 124mm
RS Stock No. 744-8370
Mfr. Part No.LUFP7
SGD1,353.19
Each
units
- - TeSys U Series - - - - - - - - - - -
RS Stock No. 535-2261
Mfr. Part No.278408 & SDAINLM55(110V50HZ,120V60HZ)
BrandEaton
SGD846.06
Each
units
30 kW Star Delta - 110 V ac IP55 - 3 - Automatic - - 85mm - 158mm
RS Stock No. 535-2148
Mfr. Part No.101381 & SDAINLM16(400V50HZ)
BrandEaton
SGD445.35
Each
units
7.5 kW - - - - - - 3 - - - - - -
RS Stock No. 272-606
Mfr. Part No.LUCA05BL
SGD113.45
Each
units
3 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS Stock No. 744-8058
Mfr. Part No.LU9GC3
SGD352.22
Each
units
- - TeSys - - - - - - - - - - -
RS Stock No. 609-7549
Mfr. Part No.LC3D32AP7
SGD1,267.11
Each
units
30 kW Star Delta - 230 V ac - 32 A - 3P - - Mechanical Interlock Included 124mm - 165mm
RS Stock No. 133-028
Mfr. Part No.48ADS1XRS
BrandEaton
SGD161.53
Each
units
9 kW DOL - 415 V ac IP54 - 3 - Automatic - - 223mm Yes 141mm
RS Stock No. 493-8864
Mfr. Part No.LUB32
SGD451.49
Each
units
25 hp - TeSys - - - - - - - - - - -
RS Stock No. 272-583
Mfr. Part No.LUCA32BL
SGD223.73
Each
units
18.5 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS Stock No. 478-4730
Mfr. Part No.ATS01N222QN
SGD458.10
Each
units
11 kW Soft Start - 415 V IP20 22 A 3 - - - - 130.7mm - 45mm
RS Stock No. 505-5825
Mfr. Part No.ATS01N209QN
SGD360.00
Each
units
4 kW Soft Start - 415 V IP20 9 A 3 - - - - 130.7mm - 45mm