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. 177-1007
Mfr. Part No.3RA2110-1AA15-1AP0
BrandSiemens
£88.15
Each
Units
550 W DOL SIRIUS 400 V ac IP20 1.1 → 1.6 A 3 3P - - - 45mm - 96.9mm
RS Stock No. 184-7084
Mfr. Part No.3RK1308-0AE00-0CP0
BrandSiemens
£248.01
Each
Units
5.5 kW - Simatic 48 → 500 V ac IP20 12 A - 3P - - - 30mm - 166.9mm
New
RS Stock No. 213-1193
Mfr. Part No.3RW4037-2BB04
BrandSiemens
£673.21
Each
Units
7.5 kW - SIRIUS 480 V IP20 63 A 3 3 - - - - - -
RS Stock No. 177-8959
Mfr. Part No.3RA6120-1DB34
BrandSiemens
£278.69
Each
Units
7.5 kW DOL SIRIUS 690 V IP20 12 A 3 3P - - - 45mm - 165mm
New
RS Stock No. 204-8290
Mfr. Part No.TPRSS080
£227.00
Each
Units
37 kW DOL TeSys Island 690 V IP20 66 A, 80 A 1, 3 3P Automatic - - 167mm - 55mm
RS Stock No. 185-9698
Mfr. Part No.3RW5235-6TC04
BrandSiemens
£1,402.50
Each
Units
132 kW Soft Start - 480 V IP00 143 A 3 - - - - 185mm - 203mm
RS Stock No. 136-5274
Mfr. Part No.3RM1302-3AA04
BrandSiemens
£167.03
Each
Units
0.75 kW - SIRIUS - - - - - - - - 141.6mm - 22.5mm
RS Stock No. 185-9687
Mfr. Part No.3RW5227-1AC14
BrandSiemens
£1,042.50
Each
Units
90 kW Soft Start - 480 V IP00 93 A 3 - - - - 185mm - 203mm
RS Stock No. 136-5261
Mfr. Part No.3RM1107-3AA04
BrandSiemens
£154.43
Each
Units
3 kW - SIRIUS - - - - - - - - 141.6mm - 22.5mm
RS Stock No. 185-9728
Mfr. Part No.3RW5246-6AC14
BrandSiemens
£3,067.50
Each
Units
355 kW Soft Start - 480 V IP00 370 A 3 - - - - 210mm - 202.5mm
RS Stock No. 184-7090
Mfr. Part No.3RK1308-0CC00-0CP0
BrandSiemens
£243.64
Each
Units
1.1 kW - Simatic 48 → 500 V ac IP20 3 A - 3P - - - 30mm - 166.9mm
RS Stock No. 200-4003
Mfr. Part No.3RW5075-6AB14
BrandSiemens
£1,987.30
Each
Units
250 kW Soft Start - 200 → 480 V IP00 370 A 3 - - - - - - -
RS Stock No. 185-9670
Mfr. Part No.3RW5217-1TC14
BrandSiemens
£678.00
Each
Units
30 kW Soft Start - 480 V IP00 38 A 3 - - - - 170mm - 152mm
RS Stock No. 200-3965
Mfr. Part No.3RW5073-6AB04
BrandSiemens
£1,683.46
Each
Units
160 kW Soft Start - 200 → 480 V IP00 250 A 3 - - - - - - -
RS Stock No. 136-3702
Mfr. Part No.PFE-04
BrandFairford
£121.58
Each
Units
1.5 kW @ 400 V ac Soft Start - 460 V ac IP20 3.4 A @ 460 V ac, 3.6 A @ 400 V ac 3 - - - - 55mm - 120mm
RS Stock No. 175-6707
Mfr. Part No.3RM1301-1AA14
BrandSiemens
£167.03
Each
Units
0.12 kW - SIRIUS - - - - - - - - - - -
RS Stock No. 200-4043
Mfr. Part No.3RW5077-6TB15
BrandSiemens
£2,529.30
Each
Units
355 kW Soft Start - 400 → 600 V IP00 570 A 3 - - - - - - -
RS Stock No. 200-3930
Mfr. Part No.3RW5056-2TB15
BrandSiemens
£1,519.22
Each
Units
110 kW Soft Start - 400 → 600 V IP00 171 A 3 - - - - - - -
RS Stock No. 200-3984
Mfr. Part No.3RW5074-6AB05
BrandSiemens
£2,020.15
Each
Units
200 kW Soft Start - 400 → 600 V IP00 315 A 3 - - - - - - -
RS Stock No. 917-6484
Mfr. Part No.LTMR100MBD
£423.00
Each
Units
30 W - TeSys T - - - - - - - - - - -