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. 665-6277
Mfr. Part No.3RK4353-3PR58-1BA0
BrandSiemens
kr 4 497,51
Each
Units
5.5 kW DOL - 400 V ac IP54 - 3 3P Manual Yes Circuit Breaker Included 220mm Yes 182mm
RS Stock No. 177-1002
Mfr. Part No.3RA2110-0KD15-1BB4
BrandSiemens
kr 1 455,51
Each
Units
370 W DOL SIRIUS 400 V ac IP20 0.9 1.25 A 3 3 - - - 45mm - 154.9mm
RS Stock No. 184-7086
Mfr. Part No.3RK1308-0BC00-0CP0
BrandSiemens
kr 2 582,23
Each
Units
1.1 kW - Simatic 48 → 500 V ac IP20 3 A - 3 - - - 30mm - 166.9mm
RS Stock No. 665-6252
Mfr. Part No.3RK4353-3HR58-1BA0
BrandSiemens
kr 3 818,51
Each
Units
1.1 kW DOL - 400 V ac IP54 - 3 - Manual Yes Circuit Breaker Included 220mm Yes 182mm
RS Stock No. 177-8943
Mfr. Part No.3RA6120-2EP32
BrandSiemens
kr 3 868,36
Each
Units
15 kW DOL SIRIUS 690 V IP20 32 A 3 3 - - - 45mm - 165mm
RS Stock No. 184-7087
Mfr. Part No.3RK1308-0BD00-0CP0
BrandSiemens
kr 2 701,87
Each
Units
4 kW - Simatic 48 → 500 V ac IP20 9 A - 3 - - - 30mm - 166.9mm
RS Stock No. 177-1003
Mfr. Part No.3RA2110-0KE15-1AP0
BrandSiemens
kr 1 126,52
Each
Units
370 W DOL SIRIUS 400 V ac IP20 0.9 1.25 A 3 3 - - - 45mm - 96.9mm
RS Stock No. 177-0982
Mfr. Part No.3RA2110-1BD15-1AP0
BrandSiemens
kr 1 435,57
Each
Units
750 W DOL SIRIUS 400 V ac IP20 1.4 2 A 3 3 - - - 45mm - 154.9mm
RS Stock No. 177-8923
Mfr. Part No.3RA6120-1CB33
BrandSiemens
kr 2 352,92
Each
Units
3 kW DOL SIRIUS 690 V IP20 4 A 3 3 - - - 45mm - 165mm
RS Stock No. 177-0985
Mfr. Part No.3RA2110-1BE15-1BB4
BrandSiemens
kr 1 206,28
Each
Units
750 W DOL SIRIUS 400 V ac IP20 1.4 2 A 3 3 - - - 45mm - 96.9mm
RS Stock No. 177-8944
Mfr. Part No.3RA6400-1EB42
BrandSiemens
kr 4 745,72
Each
Units
15 kW DOL SIRIUS 690 V IP20 32 A 3 3 - - - 45mm - 165mm
RS Stock No. 184-7088
Mfr. Part No.3RK1308-0BE00-0CP0
BrandSiemens
kr 3 280,13
Each
Units
5.5 kW - Simatic 48 → 500 V ac IP20 12 A - 3 - - - 30mm - 166.9mm
RS Stock No. 177-8926
Mfr. Part No.3RA6400-2CB43
BrandSiemens
kr 3 250,22
Each
Units
3 kW DOL SIRIUS 690 V IP20 4 A 3 3 - - - 45mm - 165mm
RS Stock No. 177-1000
Mfr. Part No.3RA2110-0KA15-1BB4
BrandSiemens
kr 1 186,34
Each
Units
370 W DOL SIRIUS 400 V ac IP20 0.9 1.25 A 3 3 - - - 45mm - 96.9mm
RS Stock No. 177-8941
Mfr. Part No.3RA6120-2DP32
BrandSiemens
kr 2 582,23
Each
Units
7.5 kW DOL SIRIUS 690 V IP20 12 A 3 3 - - - 45mm - 165mm
RS Stock No. 177-1010
Mfr. Part No.3RA2110-1CA15-1BB4
BrandSiemens
kr 1 206,28
Each
Units
750 W DOL SIRIUS 400 V ac IP20 1.8 2.5 A 3 3 - - - 45mm - 96.9mm
RS Stock No. 177-1008
Mfr. Part No.3RA2110-0KA15-1AP0
BrandSiemens
kr 1 136,49
Each
Units
370 W DOL SIRIUS 400 V ac IP20 0.9 1.25 A 3 3 - - - 45mm - 96.9mm
RS Stock No. 177-0972
Mfr. Part No.3RA2110-1BD15-1BB4
BrandSiemens
kr 1 495,38
Each
Units
750 W DOL SIRIUS 400 V ac IP20 1.4 2 A 3 3 - - - 45mm - 154.9mm
RS Stock No. 665-6268
Mfr. Part No.3RK4353-3PR58-0BA0
BrandSiemens
kr 3 635,41
Each
Units
5.5 kW DOL - 400 V ac IP54 - 3 3P Manual - Circuit Breaker Included 220mm Yes 182mm
RS Stock No. 177-8951
Mfr. Part No.3RA6120-2DP33
BrandSiemens
kr 2 502,47
Each
Units
7.5 kW DOL SIRIUS 690 V IP20 12 A 3 3 - - - 45mm - 165mm