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. 200-3912
Mfr. Part No.3RW5055-2TB15
BrandSiemens
SGD2,995.92
Each
units
90 kW Soft Start - 400 → 600 V IP00 143 A 3 - - - - - - -
RS Stock No. 177-0993
Mfr. Part No.3RA2110-0JD15-1BB4
BrandSiemens
SGD277.67
Each
units
250 W DOL SIRIUS 400 V ac IP20 0.7 → 1 A 3 3P - - - 45mm - 154.9mm
RS Stock No. 202-1688
Mfr. Part No.3RW5548-6HA14
BrandSiemens
SGD15,198.79
Each
units
160 kw Soft Start - 480 V IP00 570 A 3 - - - - - - -
RS Stock No. 185-9699
Mfr. Part No.3RW5235-6TC14
BrandSiemens
SGD3,324.74
Each
units
132 kW Soft Start - 480 V IP00 143 A 3 - - - - 185mm - 203mm
RS Stock No. 766-2529
Mfr. Part No.134913 & DS7-340SX024N0-N
BrandEaton
SGD612.19
Each
units
11 kW Soft Start - 460 V ac IP20 24 A 3 - - - - 45mm - 118mm
RS Stock No. 609-4051
Mfr. Part No.LG7K06Q708
SGD516.99
Each
units
1.5 kW DOL - 440 V ac IP657 - 3 3P Automatic - - 165mm Yes 175mm
RS Stock No. 785-0754
Mfr. Part No.RSGD4016F0VD20
SGD329.10
Each
units
4 kW Soft Start - 400 V ac IP20 16 A 3 - - - - 125mm - 45mm
RS Stock No. 272-577
Mfr. Part No.LUCA32B
SGD185.97
Each
units
18.5 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS Stock No. 184-7094
Mfr. Part No.3RK1308-0DC00-0CP0
BrandSiemens
SGD637.55
Each
units
1.1 kW - Simatic 48 → 500 V ac IP20 3 A - 3P - - - 30mm - 166.9mm
RS Stock No. 177-8936
Mfr. Part No.3RA6250-2CB32
BrandSiemens
SGD941.36
Each
units
3 kW DOL SIRIUS 690 V IP20 4 A 3 3P - Yes - 90mm - 165mm
RS Stock No. 200-3931
Mfr. Part No.3RW5056-6AB04
BrandSiemens
SGD3,050.72
Each
units
110 kW Soft Start - 200 → 480 V IP00 171 A 3 - - - - - - -
RS Stock No. 185-9728
Mfr. Part No.3RW5246-6AC14
BrandSiemens
SGD7,270.58
Each
units
355 kW Soft Start - 480 V IP00 370 A 3 - - - - 210mm - 202.5mm
RS Stock No. 202-1704
Mfr. Part No.3RW3036-1BB14
BrandSiemens
SGD888.04
Each
units
22 kw Soft Start - 400 V IP00 45 A 3 - - - - - - -
RS Stock No. 175-6695
Mfr. Part No.3RM1102-2AA14
BrandSiemens
SGD385.42
Each
units
0.75 kW - SIRIUS - - - - - - - - - - -
RS Stock No. 202-1700
Mfr. Part No.3RW3013-2BB14
BrandSiemens
SGD250.27
Each
units
1.5 kw Soft Start - 400 V IP00 3.6 A 3 - - - - - - -
RS Stock No. 811-0802
Mfr. Part No.1TVC230223S5699
BrandABB
SGD774.14
Each
units
15 kW Star Delta - 400 V ac IP55 - 3 - - - - 305mm Yes 284mm
RS Stock No. 202-1681
Mfr. Part No.3RW5515-1HA14
BrandSiemens
SGD2,045.99
Each
units
5.5 kw Soft Start - 480 V IP00 25 A 3 - - - - - - -
RS Stock No. 493-8971
SGD146.44
Each
units
0.25 kW - TeSys - - - - - - - - - - -
RS Stock No. 177-8948
Mfr. Part No.3RA6120-1EB34
BrandSiemens
SGD692.35
Each
units
15 kW DOL SIRIUS 690 V IP20 32 A 3 3P - - - 45mm - 165mm
RS Stock No. 200-4040
Mfr. Part No.3RW5077-6TB04
BrandSiemens
SGD5,096.71
Each
units
355 kW Soft Start - 200 → 480 V IP00 570 A 3 - - - - - - -