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. 665-6261
Mfr. Part No.3RK4353-3LR58-0BA0
BrandSiemens
R 6,640.00
Each
units
2.2 kW DOL - 400 V ac IP54 - 3 3P Manual - Circuit Breaker Included 220mm Yes 182mm
RS stock no. 746-4912
Mfr. Part No.3RW3018-1BB04
BrandSiemens
R 3,680.00
Each
units
7.5 kW Soft Start - 400 V IP20 17.6 A 3 - - - - 151mm - 45mm
RS stock no. 394-9504
Mfr. Part No.LE1D09V7
R 1,243.05
Each
units
5.5 kW DOL - 690 V ac IP657 - 3 - Automatic - - 166mm Yes 88mm
RS stock no. 744-8058
Mfr. Part No.LU9GC3
R 5,450.22
Each
units
- - TeSys - - - - - - - - - - -
RS stock no. 823-9821
Mfr. Part No.SDSI30415
BrandLovato
R 13,903.25
Each
units
30 kW Star Delta - 400 V IP65 - 3 - Manual - Isolator Included, Thermal Over Load Relay 300mm Yes 300mm
RS stock no. 209-6340
BrandRS PRO
R 3,093.43
Each
units
2.2 kW Soft Start - 230 V ac - 12 A 1 - - - - 120mm - 45mm
RS stock no. 535-2261
Mfr. Part No.278408 & SDAINLM55(110V50HZ,120V60HZ)
BrandEaton
R 10,493.31
Each
units
30 kW Star Delta - 110 V ac IP55 - 3 - Automatic - - 85mm - 158mm
RS stock no. 857-7898
Mfr. Part No.RSE4812-B
R 6,268.55
Each
units
5.5 kW Soft Start - 227 → 480 V ac IP20 12 A 3 - - - - 45mm - 102.5mm
RS stock no. 666-9740
Mfr. Part No.2297031
R 3,094.54
Each
units
1 kW - Contactron - - - - - - - - - - -
RS stock no. 746-4956
Mfr. Part No.3RW4036-1BB04
BrandSiemens
R 9,540.00
Each
units
22 kW Soft Start - 400 V IP00 45 A 3 - - - - 170mm - 55mm
RS stock no. 394-9526
Mfr. Part No.LE1D09P7
R 1,243.05
Each
units
4 kW DOL TeSys 690 V ac IP657 9 A AC-3 3 - Automatic - - 166mm Yes 88mm
RS stock no. 609-7628
Mfr. Part No.LD1LD030M
R 23,140.15
Each
units
55 kW DOL - 690 V ac IP20 - - 3P Automatic - - - - -
RS stock no. 505-5881
Mfr. Part No.ATSU01N206LT
R 3,423.74
Each
units
3 kW Soft Start - 480 V IP20 6 A 3 - - - - 113mm - 45mm
RS stock no. 608-6993
Mfr. Part No.ATS48C11Q
R 46,494.74
Each
units
55 kW Soft Start - 415 V IP20 110 A 3 - - - - 235mm - 190mm
RS stock no. 744-8373
Mfr. Part No.LULC033
R 7,611.38
Each
units
- - TeSys - - - - - - - - - - -
RS stock no. 917-6507
Mfr. Part No.LTMR27EBD
R 20,633.52
Each
units
30 W - TeSys T - - - - - - - - - - -
RS stock no. 746-4975
Mfr. Part No.3RW4074-6BB44
BrandSiemens
R 30,852.66
Each
units
160 kW Soft Start - 400 V IP00 280 A 3 - - - - 278mm - 160mm
RS stock no. 744-8282
Mfr. Part No.LUCL12BL
R 1,979.50
Each
units
9 kW - TeSys - - - - - - - - - - -
RS stock no. 609-7511
Mfr. Part No.LC3D18AB7
R 10,819.05
Each
units
22 kW Star Delta - 24 V ac - - - 3P - - Mechanical Interlock Included 124mm - 144mm
RS stock no. 494-6562
Mfr. Part No.118503 & D4E/I2/3P+N(230V50HZ,240V60HZ)
BrandEaton
R 2,042.49
Each
units
4 kW DOL - 400 V ac IP65 - 3 3P + N Automatic - - 180mm Yes 100mm