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. 400-1805
Mfr. Part No.LE1D18P7
SGD210.15
Each
units
10 kW DOL - 690 V ac IP657 - - - Automatic - - 201mm Yes 101mm
RS Stock No. 746-4943
Mfr. Part No.3RW4027-1BB04
BrandSiemens
SGD710.62
Each
units
15 kW Soft Start - 400 V IP20 32 A 3 - - - - 154mm - 45mm
RS Stock No. 744-8327
Mfr. Part No.LUCL32BL
SGD258.49
Each
units
15 kW - TeSys - - 8 to 32 A - - - - - - - -
RS Stock No. 608-7097
Mfr. Part No.ATS48D47Q
SGD1,180.70
Each
units
22 kW Soft Start - 415 V IP20 47 A 3 - - - - 190mm - 160mm
RS Stock No. 820-1009
Mfr. Part No.ATS48C41Y
SGD7,365.53
Each
units
400 kW - - 208 → 690 V ac IP00, IP20 410 A 3 - - - - 400mm - 670mm
RS Stock No. 272-454
Mfr. Part No.LUCA05FU
SGD117.42
Each
units
3 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS Stock No. 493-9160
Mfr. Part No.LUB120
SGD94.84
Each
units
7.5 hp - TeSys - - - - - - - - - - -
RS Stock No. 394-9526
Mfr. Part No.LE1D09P7
SGD168.81
Each
units
4 kW DOL TeSys 690 V ac IP657 9 A AC-3 3 - Automatic - - 166mm Yes 88mm
RS Stock No. 710-6405
Mfr. Part No.ATS22D75Q
SGD1,234.67
Each
units
37 kW Soft Start - 440 V IP20 75 A 3 - - - - 247mm - 145mm
RS Stock No. 493-8858
Mfr. Part No.LUB12
SGD321.93
Each
units
7.5 hp - TeSys - - - - - - - - - - -
RS Stock No. 505-5847
Mfr. Part No.ATS01N232QN
SGD564.20
Each
units
15 kW Soft Start - 415 V IP20 32 A 3 - - - - 130.7mm - 45mm
RS Stock No. 325-485
Mfr. Part No.1SFA896107R7000
BrandABB
SGD371.35
Each
units
7.5 kW Soft Start - 600 V IP20 16 A 3 - - - - 113.5mm - 45mm
RS Stock No. 609-7505
Mfr. Part No.LC3D12AP7
SGD601.01
Each
units
11 kW Star Delta - 440 V ac - - - 3P - - Mechanical Interlock Included 124mm - 143mm
RS Stock No. 420-520
Mfr. Part No.3RW4046-1BB14
BrandSiemens
SGD1,571.03
Each
units
45 kW Soft Start - 480 V ac IP00 80 A 3 - - - - 188mm - 70mm
RS Stock No. 746-4965
Mfr. Part No.3RW4055-6BB44
BrandSiemens
SGD1,815.82
Each
units
75 kW Soft Start - 400 V IP00 134 A 3 - - - - 250mm - 120mm
RS Stock No. 744-8355
Mfr. Part No.LUFDA10
SGD150.63
Each
units
- - TeSys - - - - - - - - - - -
RS Stock No. 152-772
Mfr. Part No.1SFA896109R7000
BrandABB
SGD511.56
Each
units
15 kW Soft Start - 600 V IP20 30 A 3 - - - - 128mm - 45mm
RS Stock No. 744-7831
Mfr. Part No.LE1M35N707
SGD213.56
Each
units
0.55 kW DOL - 415 V ac IP65 - 3 3P Automatic - - 160mm Yes 78mm
RS Stock No. 493-8836
SGD20.36
Each
units
- - TeSys - - - - - - - - - - -
RS Stock No. 535-2126
Mfr. Part No.278308 & SDAINLM16(110V50HZ,120V60HZ)
BrandEaton
SGD445.35
Each
units
7.5 kW Star Delta - 110 V ac IP55 - 3 - Automatic - - 68mm - 158mm