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. 785-0758
Mfr. Part No.RSGD4025E0VD20
SGD520.02
Each
units
5.5 kW Soft Start - 400 V ac IP20 25 A 3 - - - - 125mm - 45mm
RS Stock No. 857-7898
Mfr. Part No.RSE4812-B
SGD581.96
Each
units
5.5 kW Soft Start - 227 → 480 V ac IP20 12 A 3 - - - - 45mm - 102.5mm
RS Stock No. 785-0770
Mfr. Part No.RSGD4045E0VX20
SGD660.99
Each
units
11 kW Soft Start - 400 V ac IP20 45 A 3 - - - - 132mm - 45mm
RS Stock No. 857-2761
Mfr. Part No.RR2A48D550
SGD819.52
Each
units
5.5 kW - - 480 V ac IP10 11 A 2 - - - - 103mm - 73.5mm
RS Stock No. 859-2960
Mfr. Part No.DAC01CM24
SGD86.77
Each
units
1.5 W, 4 VA Star Delta - 24 → 240 V ac/dc IP20 - - - Automatic - Automatic Start, Knob Adjustable Time Setting, LED Indication for Relay Status 22.5mm Yes 99.5mm
RS Stock No. 785-0767
Mfr. Part No.RSGD4025F0VD20
SGD520.02
Each
units
5.5 kW Soft Start - 400 V ac IP20 25 A 3 - - - - 125mm - 45mm
RS Stock No. 785-0789
Mfr. Part No.RSGD4045F0VX20
SGD1,008.87
Each
units
11 kW Soft Start - 400 V ac IP20 45 A 3 - - - - 132mm - 45mm
RS Stock No. 785-0745
Mfr. Part No.RSE2312-BS
SGD270.87
Each
units
3kW Soft Start - 230 V ac IP20 12 A 1 - - - - 77.4mm - 45mm
RS Stock No. 785-0760
Mfr. Part No.RSGD4032E0VD20
SGD508.21
Each
units
9 kW Soft Start - 400 V ac IP20 32 A 3 - - - - 125mm - 45mm
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. 785-0751
Mfr. Part No.RSGD4016E0VD20
SGD426.58
Each
units
4 kW Soft Start - 400 V ac IP20 16 A 3 - - - - 125mm - 45mm
RS Stock No. 785-0764
Mfr. Part No.RSGD4032F0VD20
SGD629.63
Each
units
9 kW Soft Start - 400 V ac IP20 32 A 3 - - - - 125mm - 45mm
RS Stock No. 785-0773
Mfr. Part No.RSGD4037E0VX20
SGD735.45
Each
units
9 kW Soft Start - 400 V ac IP20 37 A 3 - - - - 132mm - 45mm