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SIRIUS 2 Contactors

Siemens SIRIUS 2 Contactors provide switching with high contact reliability, prolonged endurance, and usability in extreme conditions. The comprehensive SIRIUS 2 lineup includes 3RT devices that offer up to 2650A switching without current derating, even at an ambient temperature of +55°C. Siemens SIRIUS 2 Contactors comply with all major standards and certificates, making them suitable for a variety of applications.

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Part #

Contactors - Electromechanical CONTACTOR S0 38A 24VDC 1NO/1NC SPRG

3RT20282BB40
Siemens
1: £372.35
5In Stock

Mfr. Part No.
3RT20282BB40

Mouser Part No
982-3RT20282BB40

Siemens

Contactors - Electromechanical CONTACTOR S0 38A 24VDC 1NO/1NC SPRG

Datasheet

5In Stock

£372.35

£337.62

£337.60

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 40A 24VDC SCREW 2NO/2NC

3RT20351KB443MA0
Siemens
1: £342.67
4In Stock

Mfr. Part No.
3RT20351KB443MA0

Mouser Part No
982-3RT20351KB443MA0

Siemens

Contactors - Electromechanical CONTACTOR S2 40A 24VDC SCREW 2NO/2NC

Datasheet

4In Stock

£342.67

£305.27

£291.49

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 120VAC SCREW 1NO/1NC

3RT20381AK60
Siemens
1: £413.23
5In Stock

Mfr. Part No.
3RT20381AK60

Mouser Part No
982-3RT20381AK60

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 120VAC SCREW 1NO/1NC

Datasheet

5In Stock

£413.23

£378.04

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 12A 110VAC 1NO/1NC SCRW

3RT20241AF00
Siemens
1: £97.96
30In Stock

Mfr. Part No.
3RT20241AF00

Mouser Part No
982-3RT20241AF00

Siemens

Contactors - Electromechanical CONTACTOR S0 12A 110VAC 1NO/1NC SCRW

Datasheet

30In Stock

£97.96

£90.04

£85.34

£80.73

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 25A 220VAC 1NO/1NC SCRW

3RT20261AP60
Siemens
1: £167.55
10In Stock

Mfr. Part No.
3RT20261AP60

Mouser Part No
982-3RT20261AP60

Siemens

Contactors - Electromechanical CONTACTOR S0 25A 220VAC 1NO/1NC SCRW

Datasheet

10In Stock

£167.55

£150.51

£143.70

£138.76

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 32A 120VAC SCREW 1NO/1NC

3RT20271AK60
Siemens
1: £232.31
14In Stock

Mfr. Part No.
3RT20271AK60

Mouser Part No
982-3RT20271AK60

Siemens

Contactors - Electromechanical CONTACTOR S0 32A 120VAC SCREW 1NO/1NC

Datasheet

14In Stock

£232.31

£206.82

£197.47

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 9A 48VAC 1NO/1NC SCRW

3RT20231AH00
Siemens
1: £84.16
1In Stock

Mfr. Part No.
3RT20231AH00

Mouser Part No
982-3RT20231AH00

Siemens

Contactors - Electromechanical CONTACTOR S0 9A 48VAC 1NO/1NC SCRW

Datasheet

1In Stock

£84.16

£84.15

£81.89

£80.17

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 12A 480VAC 1NO/1NC SCRW

3RT20241AV60
Siemens
1: £107.96
6In Stock

Mfr. Part No.
3RT20241AV60

Mouser Part No
982-3RT20241AV60

Siemens

Contactors - Electromechanical CONTACTOR S0 12A 480VAC 1NO/1NC SCRW

Datasheet

6In Stock

£107.96

£105.83

£103.52

£100.62

View

Min.: 1
Mult.: 1

Contactors - Electromechanical Contactor. AC-3. 40 A/400 V/60

3RT20351SP30
Siemens
1: £360.64
3In Stock

Mfr. Part No.
3RT20351SP30

Mouser Part No
982-3RT20351SP30

Siemens

Contactors - Electromechanical Contactor. AC-3. 40 A/400 V/60

Datasheet

3In Stock

£360.64

£353.56

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 50A 20-33VUC SCREW 2NO/2NC

3RT20361NB343MA0
Siemens
1: £367.52
1In Stock
2Expected 26/10/2026

Mfr. Part No.
3RT20361NB343MA0

Mouser Part No
982-3RT20361NB343MA0

Siemens

Contactors - Electromechanical CONTACTOR S2 50A 20-33VUC SCREW 2NO/2NC

Datasheet

1In Stock

2Expected 26/10/2026

£367.52

£367.51

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 50A 24VAC SPRING 1NO/1NC

3RT20363AB00
Siemens
1: £270.70
1In Stock

Mfr. Part No.
3RT20363AB00

Mouser Part No
982-3RT20363AB00

Siemens

Contactors - Electromechanical CONTACTOR S2 50A 24VAC SPRING 1NO/1NC

Datasheet

1In Stock

£270.70

Min.: 1
Mult.: 1

Contactors - Electromechanical 4NO CONTACTOR. AC1: 40A. 24 VDC

3RT23261BB401AA0
Siemens
1: £338.65
2In Stock

Mfr. Part No.
3RT23261BB401AA0

Mouser Part No
982-3RT23261BB401AA0

Siemens

Contactors - Electromechanical 4NO CONTACTOR. AC1: 40A. 24 VDC

Datasheet

2In Stock

£338.65

£331.99

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 12A 110VDC 2NO/2NC SPRG

3RT25172BF40
Siemens
1: £120.67
1In Stock

Mfr. Part No.
3RT25172BF40

Mouser Part No
982-3RT25172BF40

Siemens

Contactors - Electromechanical CONTACTOR S00 12A 110VDC 2NO/2NC SPRG

Datasheet

1In Stock

£120.67

£119.96

£117.58

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CAP CONTACTOR 25KVAR 1NO+2NC 120VAC

3RT26271AK65
Siemens
1: £245.46
1In Stock

Mfr. Part No.
3RT26271AK65

Mouser Part No
982-3RT26271AK65

Siemens

Contactors - Electromechanical CAP CONTACTOR 25KVAR 1NO+2NC 120VAC

Datasheet

1In Stock

£245.46

£245.45

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 9A 42VAC 1NC SCRW

3RT20161AD02
Siemens
1: £93.18
4In Stock

Mfr. Part No.
3RT20161AD02

Mouser Part No
982-3RT20161AD02

Siemens

Contactors - Electromechanical CONTACTOR S00 9A 42VAC 1NC SCRW

Datasheet

4In Stock

£93.18

£91.35

£90.32

£87.80

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 AC3 120VAC 1NO SCRW

3RT20161AK21
Siemens
1: £93.18
3In Stock

Mfr. Part No.
3RT20161AK21

Mouser Part No
982-3RT20161AK21

Siemens

Contactors - Electromechanical CONTACTOR S00 AC3 120VAC 1NO SCRW

Datasheet

3In Stock

£93.18

£91.35

£90.32

£87.80

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 9A 110VDC 1NC SCRW

3RT20161BF42
Siemens
1: £96.21
3In Stock

Mfr. Part No.
3RT20161BF42

Mouser Part No
982-3RT20161BF42

Siemens

Contactors - Electromechanical CONTACTOR S00 9A 110VDC 1NC SCRW

Datasheet

3In Stock

£96.21

£96.18

£96.17

£95.32

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 9A 110VAC 2NO/2NC SPRG

3RT20162AF04
Siemens
1: £124.82
1In Stock

Mfr. Part No.
3RT20162AF04

Mouser Part No
982-3RT20162AF04

Siemens

Contactors - Electromechanical CONTACTOR S00 9A 110VAC 2NO/2NC SPRG

Datasheet

1In Stock

£124.82

£123.26

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 16A 120VAC 1NO SCRW

3RT20181AK610UA0
Siemens
1: £170.09
1In Stock

Mfr. Part No.
3RT20181AK610UA0

Mouser Part No
982-3RT20181AK610UA0

Siemens

Contactors - Electromechanical CONTACTOR S00 16A 120VAC 1NO SCRW

Datasheet

1In Stock

£170.09

£163.81

£161.54

£159.19

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 16A 480VDC 1NO SPRG

3RT20182BW41
Siemens
1: £197.23
1In Stock

Mfr. Part No.
3RT20182BW41

Mouser Part No
982-3RT20182BW41

Siemens

Contactors - Electromechanical CONTACTOR S00 16A 480VDC 1NO SPRG

Datasheet

1In Stock

£197.23

£197.22

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 9A 480VAC 1NO/1NC SCRW

3RT20231AV60
Siemens
1: £91.49
1In Stock

Mfr. Part No.
3RT20231AV60

Mouser Part No
982-3RT20231AV60

Siemens

Contactors - Electromechanical CONTACTOR S0 9A 480VAC 1NO/1NC SCRW

Datasheet

1In Stock

£91.49

£91.48

£89.39

£87.38

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 12A 42VAC 2NO/2NC SCRW

3RT20241AD04
Siemens
1: £135.04
1In Stock

Mfr. Part No.
3RT20241AD04

Mouser Part No
982-3RT20241AD04

Siemens

Contactors - Electromechanical CONTACTOR S0 12A 42VAC 2NO/2NC SCRW

Datasheet

1In Stock

£135.04

£134.99

£133.05

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 240VAC 1NO/1NC SCRW

3RT20251AU00
Siemens
1: £128.89
1In Stock

Mfr. Part No.
3RT20251AU00

Mouser Part No
982-3RT20251AU00

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 240VAC 1NO/1NC SCRW

Datasheet

1In Stock

£128.89

£128.33

£125.54

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 32A 125VDC 1NO/1NC SCRW

3RT20271BG40
Siemens
1: £363.03
2In Stock

Mfr. Part No.
3RT20271BG40

Mouser Part No
982-3RT20271BG40

Siemens

Contactors - Electromechanical CONTACTOR S0 32A 125VDC 1NO/1NC SCRW

Datasheet

2In Stock

£363.03

£355.90

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 40A 110VAC SCREW 2NO/2NC

3RT20351AG24
Siemens
1: £275.02
1In Stock

Mfr. Part No.
3RT20351AG24

Mouser Part No
982-3RT20351AG24

Siemens

Contactors - Electromechanical CONTACTOR S2 40A 110VAC SCREW 2NO/2NC

Datasheet

1In Stock

£275.02

£275.01

Min.: 1
Mult.: 1