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 Phase Current Rating Number of Poles Motor Starter Functionality Reversibility Additional Features Overall Length Enclosure Overall Width
RS Stock No. 725-5503
BrandRS PRO
MYR244.55
Each
units
5.5 kW DOL - 230 V ac IP65 3 9 → 14 A 3P Automatic - Disconnect Switch Not Included 193mm Yes 88mm
RS Stock No. 133-028
Mfr. Part No.48ADS1XRS
BrandEaton
MYR675.03
Each
units
9 kW DOL - 415 V ac IP54 3 - - Automatic - - 223mm Yes 141mm
RS Stock No. 608-7110
Mfr. Part No.ATS48D75Q
MYR6,711.10
Each
units
37 kW Soft Start - 415 V IP20 3 75 A - - - - 235mm - 190mm
RS Stock No. 609-7785
Mfr. Part No.LE4D35V7
MYR3,112.00
Each
units
18.5 kW DOL - 690 V ac IP657 - - 3P Automatic - - 330mm Yes 186mm
RS Stock No. 609-7628
Mfr. Part No.LD1LD030M
MYR8,460.09
Each
units
55 kW DOL - 690 V ac IP20 - - 3P Automatic - - - - -
RS Stock No. 493-8864
Mfr. Part No.LUB32
MYR492.30
Each
units
25 hp - TeSys - - - - - - - - - - -
RS Stock No. 325-485
Mfr. Part No.1SFA896107R7000
BrandABB
MYR1,375.15
Each
units
7.5 kW Soft Start - 600 V IP20 3 16 A - - - - 113.5mm - 45mm
RS Stock No. 732-8364
Mfr. Part No.1SFA897110R7000
BrandABB
MYR8,791.90
Each
units
55 kW Soft Start - 600 V IP00, IP20 3 143 A - - - - 295mm - 130mm
RS Stock No. 500-888
Mfr. Part No.3RA6120-1EB32
BrandSiemens
MYR2,661.39
Each
units
15 kW - SIRIUS - - - - - - - - - - -
RS Stock No. 493-9160
Mfr. Part No.LUB120
MYR363.19
Each
units
7.5 hp - TeSys - - - - - - - - - - -
RS Stock No. 851-7635
Mfr. Part No.1SFA896106R1100
BrandABB
MYR1,179.39
Each
units
5.5 kW Soft Start - 208 → 600 V ac IP20 3 12 A - - - - 45mm - 114mm
RS Stock No. 248-5166
Mfr. Part No.GHG6351101R0108
BrandCEAG
MYR4,297.88
Each
units
- DOL - 690 V ac IP66 - - - Manual - - 225mm Yes 140mm
RS Stock No. 493-8836
MYR69.15
Each
units
- - TeSys - - - - - - - - - - -
RS Stock No. 608-7003
Mfr. Part No.ATS48C14Q
MYR10,986.72
Each
units
75 kW Soft Start - 415 V IP00 3 140 A - - - - 265mm - 200mm
RS Stock No. 505-5847
Mfr. Part No.ATS01N232QN
MYR1,975.44
Each
units
15 kW Soft Start - 415 V IP20 3 32 A - - - - 130.7mm - 45mm
RS Stock No. 493-8858
Mfr. Part No.LUB12
MYR926.78
Each
units
7.5 hp - TeSys - - - - - - - - - - -
RS Stock No. 133-107
Mfr. Part No.28ADS1X
BrandEaton
MYR641.94
Each
units
9 kW DOL - 240 V IP54 3 - - Automatic - - 223mm Yes 141mm
RS Stock No. 732-8368
Mfr. Part No.1SFA897111R7000
BrandABB
MYR10,921.67
Each
units
75 kW Soft Start - 600 V IP00, IP20 3 171 A - - - - 295mm - 130mm
RS Stock No. 209-6340
BrandRS PRO
MYR946.39
Each
units
2.2 kW Soft Start - 230 V ac - 1 12 A - - - - 120mm - 45mm
RS Stock No. 609-7763
Mfr. Part No.LE4D25P7
MYR2,065.17
Each
units
15 kW DOL - 500 V ac IP657 - - 3P Automatic - - 330mm Yes 186mm