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. 133-028
Mfr. Part No.48ADS1XRS
BrandEaton
HK$762.20
Each
units
9 kW DOL - 415 V ac IP54 - 3 - Automatic - - 223mm Yes 141mm
RS Stock No. 609-7713
Mfr. Part No.LE1M35V7
HK$390.00
Each
units
7.5 kW DOL - 400 V ac IP65 - - 3P Automatic - - 160mm Yes 78mm
RS Stock No. 711-6470
Mfr. Part No.MS132-10
BrandABB
HK$558.66
Each
units
4 kW DOL - 690 V ac IP20 - 1, 3 3P Manual - - 90mm Yes 45mm
RS Stock No. 272-454
Mfr. Part No.LUCA05FU
HK$422.42
Each
units
3 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS Stock No. 725-5507
BrandRS PRO
HK$289.44
Each
units
5.5 kW DOL - 400 V ac IP65 9 → 14 A 3 3P Automatic - Disconnect Switch Not Included 193mm Yes 88mm
RS Stock No. 445-0392
Mfr. Part No.MS116-10
BrandABB
HK$314.74
Each
units
- DOL - 690 V ac IP20 - 1, 3 3P Manual - - 90mm Yes 45mm
RS Stock No. 725-5503
BrandRS PRO
HK$281.01
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. 711-6464
Mfr. Part No.MS132-2.5
BrandABB
HK$508.39
Each
units
0.75 kW DOL - 690 V ac IP20 10 → 16 A 1, 3 3P Manual - - 90mm Yes 45mm
RS Stock No. 609-7505
Mfr. Part No.LC3D12AP7
HK$2,878.50
Each
units
11 kW Star Delta - 440 V ac - - - 3P - - Mechanical Interlock Included 124mm - 143mm
RS Stock No. 133-056
Mfr. Part No.48ADSA1XRS
BrandEaton
HK$2,390.26
Each
units
9 kW DOL - 415 V ac IP54 - 3 - Automatic - Disconnect Switch Included 260mm Yes 221.5mm
RS Stock No. 351-4748
Mfr. Part No.LE1GBKO55N7
HK$500.00
Each
units
5.5 kW DOL - 415 V ac IP65 - - - Automatic - - 212mm Yes 124mm
RS Stock No. 609-4124
Mfr. Part No.LG8K09Q714
HK$3,249.00
Each
units
4 kW DOL - 440 V ac IP657 - - 3P Automatic Yes Disconnect Switch Included 165mm Yes 175mm
RS Stock No. 725-5516
BrandRS PRO
HK$317.36
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. 535-2261
Mfr. Part No.SDAINLM55(110V50HZ120V60HZ)
BrandEaton
HK$4,380.00
Each
units
30 kW Star Delta - 110 V ac IP55 - 3 - Automatic - - 85mm - 158mm
RS Stock No. 811-0751
Mfr. Part No.DRAF12-14
BrandABB
HK$689.36
Each
units
5.5 kW DOL - 400 V ac IP65 - 3 - Automatic - - 230mm Yes 106mm
RS Stock No. 609-7549
Mfr. Part No.LC3D32AP7
HK$5,380.00
Each
units
30 kW Star Delta - 230 V ac - 32 A - 3P - - Mechanical Interlock Included 124mm - 165mm
RS Stock No. 866-5911
Mfr. Part No.3RA6120-1AB32
BrandSiemens
HK$3,206.06
Each
units
0.09 kW DOL - 24 V dc IP20 - 3 3P Automatic, Manual No Highly Efficient Power Wiring And Simplified Motor Connection Infeed System, Integrated Functionalities For Fewer Variants and Maximum System Availability, Time and Space Saving Installation In The Control Cabinet 45mm Yes 170mm
RS Stock No. 725-5525
BrandRS PRO
HK$749.43
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. 133-034
Mfr. Part No.28ADSA1XRS
BrandEaton
HK$2,325.74
Each
units
9 kW DOL - 415 V ac IP54 - 3 - Automatic - Disconnect Switch Included 260mm Yes 221.5mm
RS Stock No. 272-460
Mfr. Part No.LUCA05ES
HK$525.30
Each
units
3 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
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