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. 725-5557
BrandRS PRO
SGD485.18
Each
units
22 kW Star Delta - 230 V ac IP65 24 → 32 A 3 3P - - Disconnect Switch Not Included 220mm Yes 280mm
RS Stock No. 725-5581
BrandRS PRO
SGD744.67
Each
units
22 kW Star Delta - 230 V ac IP65 24 → 32 A 3 3P - - Disconnect Switch Included 220mm Yes 280mm
RS Stock No. 909-4098
BrandRS PRO
SGD116.78
Each
units
1.5 kW DOL - 240 V IP55 10 → 13 A 1 3PST Manual - Colour RAL 7035 Light Grey, Hand Reset Thermal Overloads, Provision for Remote Control 104mm Yes 174mm
RS Stock No. 725-5588
BrandRS PRO
SGD511.35
Each
units
15 kW Star Delta - 400 V ac IP65 13 → 18 A 3 3P - - Disconnect Switch Included 220mm Yes 280mm
RS Stock No. 725-5569
BrandRS PRO
SGD642.29
Each
units
30 kW Star Delta - 230 V ac IP65 32 → 38 A 3 3P - - Disconnect Switch Not Included 220mm Yes 280mm
RS Stock No. 725-5538
BrandRS PRO
SGD191.69
Each
units
7.5 kW DOL - 230 V ac IP65 13 → 18 A 3 3P Automatic - Disconnect Switch Included 225mm Yes 110mm
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. 725-5531
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. 909-4089
BrandRS PRO
SGD116.78
Each
units
1.1 kW DOL - 240 V IP55 7 → 10 A 1 3PST Manual - Colour RAL 7035 Light Grey, Hand Reset Thermal Overloads, Provision for Remote Control 104mm Yes 174mm
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. 135-9715
BrandRS PRO
SGD234.88
Each
units
1.5 kW Soft Start - 400 V ac IP20 3.5 A 2 - - - - 45mm - 110mm
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. 725-5563
BrandRS PRO
SGD642.29
Each
units
30 kW Star Delta - 400 V ac IP65 32 → 38 A 3 3P - - Disconnect Switch Not Included 220mm Yes 280mm
RS Stock No. 212-8699
BrandRS PRO
SGD375.50
Each
units
5.5 kW Soft Start - 460 V ac - 12 A 3 - - - - - - -
RS Stock No. 909-4085
BrandRS PRO
SGD116.78
Each
units
0.75 kW DOL - 240 V IP55 5.5 → 8 A 1 3PST Manual - Colour RAL 7035 Light Grey, Hand Reset Thermal Overloads, Provision for Remote Control 104mm Yes 174mm
RS Stock No. 135-9717
BrandRS PRO
SGD275.21
Each
units
5.5 kW Soft Start - 400 V ac IP20 12 A 2 - - - - 45mm - 110mm
RS Stock No. 725-5597
BrandRS PRO
SGD920.47
Each
units
30 kW Star Delta - 400 V ac IP65 32 → 38 A 3 3P - - Disconnect Switch Included 220mm Yes 280mm
RS Stock No. 725-5544
BrandRS PRO
SGD188.67
Each
units
11 kW DOL - 400 V ac IP65 17 → 23 A 3 3P Automatic - Disconnect Switch Included 225mm Yes 110mm
RS Stock No. 725-5541
BrandRS PRO
SGD431.34
Each
units
11 kW Star Delta - 400 V ac IP65 9 → 14 A 3 3P - - Disconnect Switch Not Included 220mm Yes 280mm
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