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. 725-5594
BrandRS PRO
£514.26
Each
Units
30 kW Star Delta - 230 V ac IP65 32 → 38 A 3 3P - - Disconnect Switch Included 220mm Yes 280mm
RS Stock No. 135-9716
BrandRS PRO
£140.06
Each
Units
3 kW Soft Start - 400 V ac IP20 6.5 A 2 - - - - 45mm - 110mm
RS Stock No. 135-9718
BrandRS PRO
£215.13
Each
Units
11 kW Soft Start - 400 V ac IP20 25 A 2 - - - - 45mm - 173mm
RS Stock No. 135-9720
BrandRS PRO
£355.80
Each
Units
22 kW Soft Start - 400 V ac IP20 45 A 2 - - - - 52.5mm - 178mm
RS Stock No. 135-9715
BrandRS PRO
£131.22
Each
Units
1.5 kW Soft Start - 400 V ac IP20 3.5 A 2 - - - - 45mm - 110mm
RS Stock No. 135-9717
BrandRS PRO
£153.76
Each
Units
5.5 kW Soft Start - 400 V ac IP20 12 A 2 - - - - 45mm - 110mm
RS Stock No. 135-9719
BrandRS PRO
£292.73
Each
Units
15 kW Soft Start - 400 V ac IP20 32 A 2 - - - - 45mm - 173mm
RS Stock No. 135-9721
BrandRS PRO
£196.09
Each
Units
7.5 kW Soft Start - 400 V ac IP20 16 A 2 - - - - 45mm - 110mm
RS Stock No. 133-028
Mfr. Part No.48ADS1XRS
BrandEaton
£91.60
Each
Units
9 kW DOL - 415 V ac IP54 - 3 - Automatic - - 223mm Yes 141mm
RS Stock No. 505-5847
Mfr. Part No.ATS01N232QN
£277.40
Each
Units
15 kW Soft Start - 415 V IP20 32 A 3 - - - - 130.7mm - 45mm
RS Stock No. 351-4748
Mfr. Part No.LE1GBKO55N7
£68.00
Each
Units
5.5 kW DOL - 415 V ac IP65 - - - Automatic - - 212mm Yes 124mm
RS Stock No. 394-9526
Mfr. Part No.LE1D09P7
£83.00
Each
Units
4 kW DOL TeSys 690 V ac IP657 9 A AC-3 3 - Automatic - - 166mm Yes 88mm
RS Stock No. 351-4782
Mfr. Part No.LE1GBKS55N7
£218.00
Each
Units
5.5 kW DOL - 415 V ac IP65 - - - Automatic - Disconnect Switch Included 219mm Yes 214mm
RS Stock No. 420-479
Mfr. Part No.3RW4047-1BB14
BrandSiemens
£790.82
Each
Units
55 kW Soft Start - 480 V ac IP00 106 A 3 - - - - 188mm - 70mm
RS Stock No. 609-7505
Mfr. Part No.LC3D12AP7
£331.00
Each
Units
11 kW Star Delta - 440 V ac - - - 3P - - Mechanical Interlock Included 124mm - 143mm
RS Stock No. 418-6877
Mfr. Part No.150-C37NBD
£542.00
Each
Units
18.5 kW Soft Start - 460 V ac IP2X 37 A 3 - - - - 100mm - 44.8mm
RS Stock No. 133-107
Mfr. Part No.28ADS1X
BrandEaton
£87.12
Each
Units
9 kW DOL - 240 V IP54 - 3 - Automatic - - 223mm Yes 141mm
RS Stock No. 493-8858
Mfr. Part No.LUB12
£53.00
Each
Units
7.5 hp - TeSys - - - - - - - - - - -
RS Stock No. 420-514
Mfr. Part No.3RW4037-1BB14
BrandSiemens
£555.95
Each
Units
30 kW Soft Start - 480 V ac IP00 63 A 3 - - - - 170mm - 55mm
RS Stock No. 493-8864
Mfr. Part No.LUB32
£73.00
Each
Units
25 hp - TeSys - - - - - - - - - - -