DOL & Star Delta Starters

A DOL Starter is a Direct-On-line motor starter. Sometimes known as an ’across the line’ starter, this type of motor controller is used as a simple starter for larger electric motors, providing full line voltage to the motor terminals.

At their simplest, DOL Starters act as a stop / start switch for a motor, but DOL starters are often fitted with overload protection devices to prevent short circuits or the motor overheating.

Uses for DOL Starters

DOL Starters are used in a variety of applications where motor driving is required, such as running workshop machinery, large fans or water pumps.

Reversible DOL Starters

The RS Range includes reversible DOL Starters that 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.

Ingress Protection

DOL Starters typically have a moulded plastic body designed to protect the motor starter electrical components from workplace environmental factors. The RS Range includes many DOL starter models that are suitable for the harshest work environments, which is essential when running machinery that results in a dusty environment, such as machine woodworking. There are even ATEX rated DOL starters for environments with explosive risks.

Further Security

Some DOL starters are equipped with securing functions such as key locked buttons. These optional extras are highly useful in preventing accidental or unauthorised activation of a motor, and are available in the RS Range.

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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. 609-7656
Mfr. Part No.LE1D12P7
R 1,317.20
Each
units
7.5 kW DOL - 690 V ac IP657 - - - Automatic - - 166mm Yes 88mm
RS stock no. 272-533
Mfr. Part No.LUCA18FU
R 1,886.67
Each
units
15 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS stock no. 909-4076
BrandRS PRO
R 1,543.91
Each
units
3.7 kW DOL - 415 V IP55 5.5 → 8 A 3 3PST Manual - Colour RAL 7035 Light Grey, Hand Reset Thermal Overloads, Provision for Remote Control 104mm Yes 174mm
RS stock no. 823-9815
Mfr. Part No.SDSI11415
BrandLovato
R 10,928.93
Each
units
11 kW Star Delta - 400 V IP65 - 3 - Manual No Isolator Included, Thermal Over Load Relay 300mm Yes 300mm
RS stock no. 272-397
Mfr. Part No.LUCA18BL
R 1,555.82
Each
units
15 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS stock no. 744-7825
Mfr. Part No.LE1M35B710
R 1,004.13
Each
units
1.5 kW DOL - 24 V ac IP65 - 3 3P Automatic - - 160mm Yes 78mm
RS stock no. 812-9102
Mfr. Part No.DOLC4.0400
BrandLovato
R 1,552.29
Each
units
4 kW DOL - 400 V IP65 - 3 4P Automatic - - 175mm Yes 88mm
RS stock no. 725-5503
BrandRS PRO
R 858.45
Each
units
5.5 kW DOL - 230 V ac IP65 9 → 14 A 3 3P Automatic - Disconnect Switch Not Included 193mm Yes 88mm
RS stock no. 272-432
Mfr. Part No.LUCA12BL
R 1,807.79
Each
units
9 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS stock no. 609-4073
Mfr. Part No.LG7K09M714
R 6,869.30
Each
units
4 kW DOL - 440 V ac IP657 - 3 3P Automatic - - 165mm Yes 175mm
RS stock no. 528-7369
Mfr. Part No.118523 | XDP4/I(400V50HZ,440V60HZ)
BrandEaton
R 4,004.67
Each
units
4 kW DOL - 400 V ac IP65 - - 3P Automatic - Disconnect Switch Included 200mm Yes 120mm
RS stock no. 725-5525
BrandRS PRO
R 2,161.75
Each
units
5.5 kW DOL - 230 V ac IP65 9 → 14 A 3 3P Automatic - Disconnect Switch Included 225mm Yes 110mm
RS stock no. 528-7599
Mfr. Part No.118525 | XDP4/ST(400V50HZ,440V60HZ)
BrandEaton
R 4,684.01
Each
units
4 kW DOL - 400 V ac IP55 - - 3P Automatic - Disconnect Switch Included 184mm Yes 184mm
RS stock no. 528-7583
Mfr. Part No.118524 | XDP4/ST(230V50HZ,240V60HZ)
BrandEaton
R 4,671.00
Each
units
4 kW DOL - 230 V ac IP55 - - 3P Automatic - Disconnect Switch Included 184mm Yes 184mm
RS stock no. 609-7757
Mfr. Part No.LE4D18V7
R 8,439.55
Each
units
10 kW DOL - 500 V ac IP657 - - 3P Automatic - - 330mm Yes 186mm
RS stock no. 251-2381
Mfr. Part No.LG7K09M7
R 4,449.60
Each
units
- DOL - - IP657 - - 3P Manual - - 165mm Yes 175mm
RS stock no. 725-5516
BrandRS PRO
R 1,001.55
Each
units
7.5 kW DOL - 230 V ac IP65 13 → 18 A 3 3P Automatic - Disconnect Switch Not Included 193mm Yes 88mm
RS stock no. 528-7460
Mfr. Part No.118537 | XDRP4/I(400V50HZ,440V60HZ)
BrandEaton
R 7,557.55
Each
units
4 kW DOL - 400 V ac IP65 - - 3P Automatic Yes Disconnect Switch Included 280mm Yes 200mm
RS stock no. 811-0782
Mfr. Part No.1TVC400071S5699
BrandABB
R 4,843.76
Each
units
7.5 kW DOL - 400 V ac IP55 - 3 - Automatic Yes - 184mm Yes 184mm
RS stock no. 609-7814
Mfr. Part No.LE6D09V7
R 13,873.17
Each
units
7.5 kW Star Delta - 440 V ac IP657 - - - - - - 348mm Yes 186mm