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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 S00 9A 120VAC 1NO SCRW

3RT20161AK61
Siemens
1: $137.72
19In Stock

Mfr. Part No.
3RT20161AK61

Mouser Part No
982-3RT20161AK61

Siemens

Contactors - Electromechanical CONTACTOR S00 9A 120VAC 1NO SCRW

Datasheet

19In Stock

$137.72

$132.79

$117.14

$113.10

$109.21

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR, AC3 9A 4KW 24VDC, 3-POLE

3RT20161BB41
Siemens
1: $158.74
19In Stock
20Expected 12/6/2026

Mfr. Part No.
3RT20161BB41

Mouser Part No
982-3RT20161BB41

Siemens

Contactors - Electromechanical CONTACTOR, AC3 9A 4KW 24VDC, 3-POLE

Datasheet

19In Stock

20Expected 12/6/2026

$158.74

$141.29

$134.91

$130.30

$125.82

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 9A 24VDC 1NC SPRG

3RT20162BB42
Siemens
1: $158.64
19In Stock

Mfr. Part No.
3RT20162BB42

Mouser Part No
982-3RT20162BB42

Siemens

Contactors - Electromechanical CONTACTOR S00 9A 24VDC 1NC SPRG

Datasheet

19In Stock

$158.64

$141.24

$134.94

$130.30

$125.82

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 12A 230VAC 1NO SCRW

3RT20171AP01
Siemens
1: $167.55
15In Stock

Mfr. Part No.
3RT20171AP01

Mouser Part No
982-3RT20171AP01

Siemens

Contactors - Electromechanical CONTACTOR S00 12A 230VAC 1NO SCRW

Datasheet

15In Stock

$167.55

$149.24

$142.50

$137.60

$132.86

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 12A 24VDC 1NO SCRW

3RT20171BB41
Siemens
1: $191.39
22In Stock

Mfr. Part No.
3RT20171BB41

Mouser Part No
982-3RT20171BB41

Siemens

Contactors - Electromechanical CONTACTOR S00 12A 24VDC 1NO SCRW

Datasheet

22In Stock

$191.39

$170.41

$162.71

$157.11

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 16A 24VDC 1NC SCRW

3RT20181BB42
Siemens
1: $325.39
10In Stock

Mfr. Part No.
3RT20181BB42

Mouser Part No
982-3RT20181BB42

Siemens

Contactors - Electromechanical CONTACTOR S00 16A 24VDC 1NC SCRW

Datasheet

10In Stock

$325.39

$292.48

$276.74

$267.21

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 16A 24VDC 2NO/2NC SCRW

3RT20181BB443MA0
Siemens
1: $395.47
45In Stock

Mfr. Part No.
3RT20181BB443MA0

Mouser Part No
982-3RT20181BB443MA0

Siemens

Contactors - Electromechanical CONTACTOR S00 16A 24VDC 2NO/2NC SCRW

Datasheet

45In Stock

$395.47

$353.12

$345.83

Min.: 1
Mult.: 1

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

3RT20241AF00
Siemens
1: $169.90
30In Stock

Mfr. Part No.
3RT20241AF00

Mouser Part No
982-3RT20241AF00

Siemens

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

Datasheet

30In Stock

$169.90

$157.60

$156.68

$140.11

$135.29

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 12A 24VDC 1NO/1NC SCRW

3RT20241BB40
Siemens
1: $304.70
9In Stock

Mfr. Part No.
3RT20241BB40

Mouser Part No
982-3RT20241BB40

Siemens

Contactors - Electromechanical CONTACTOR S0 12A 24VDC 1NO/1NC SCRW

Datasheet

9In Stock

$304.70

$271.27

$260.75

$251.77

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 24VDC 1NO/1NC SPRG

3RT20252BB40
Siemens
1: $366.47
8In Stock

Mfr. Part No.
3RT20252BB40

Mouser Part No
982-3RT20252BB40

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 24VDC 1NO/1NC SPRG

Datasheet

8In Stock

$366.47

$322.23

$311.57

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 25A 24VDC 1NO/1NC SCRW

3RT20261BB40
Siemens
1: $427.95
38In Stock

Mfr. Part No.
3RT20261BB40

Mouser Part No
982-3RT20261BB40

Siemens

Contactors - Electromechanical CONTACTOR S0 25A 24VDC 1NO/1NC SCRW

Datasheet

38In Stock

$427.95

$381.00

$363.68

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 25A 120VAC 1NO/1NC SPRG

3RT20262AK60
Siemens
1: $282.16
19In Stock

Mfr. Part No.
3RT20262AK60

Mouser Part No
982-3RT20262AK60

Siemens

Contactors - Electromechanical CONTACTOR S0 25A 120VAC 1NO/1NC SPRG

Datasheet

19In Stock

$282.16

$247.64

$246.78

$238.27

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 32A 230VAC 1NO/1NC SCRW

3RT20271AL20
Siemens
1: $390.76
6In Stock

Mfr. Part No.
3RT20271AL20

Mouser Part No
982-3RT20271AL20

Siemens

Contactors - Electromechanical CONTACTOR S0 32A 230VAC 1NO/1NC SCRW

Datasheet

6In Stock

$390.76

$348.01

$332.27

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 32A 24VDC 1NO/1NC SCRW

3RT20271BB40
Siemens
1: $570.51
5In Stock

Mfr. Part No.
3RT20271BB40

Mouser Part No
982-3RT20271BB40

Siemens

Contactors - Electromechanical CONTACTOR S0 32A 24VDC 1NO/1NC SCRW

Datasheet

5In Stock

$570.51

$507.98

$485.01

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 32A 24VDC 1NO/1NC SPRG

3RT20272BB40
Siemens
1: $570.62
16In Stock

Mfr. Part No.
3RT20272BB40

Mouser Part No
982-3RT20272BB40

Siemens

Contactors - Electromechanical CONTACTOR S0 32A 24VDC 1NO/1NC SPRG

Datasheet

16In Stock

$570.62

$508.02

$485.01

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 32A 24VDC 1NO/1NC SPRG

3RT20272FB40
Siemens
1: $697.93
4In Stock

Mfr. Part No.
3RT20272FB40

Mouser Part No
982-3RT20272FB40

Siemens

Contactors - Electromechanical CONTACTOR S0 32A 24VDC 1NO/1NC SPRG

Datasheet

4In Stock

$697.93

$663.56

Quote

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 38A 120VAC 1NO/1NC SCRW

3RT20281AK60
Siemens
1: $433.89
6In Stock

Mfr. Part No.
3RT20281AK60

Mouser Part No
982-3RT20281AK60

Siemens

Contactors - Electromechanical CONTACTOR S0 38A 120VAC 1NO/1NC SCRW

Datasheet

6In Stock

$433.89

$386.29

$368.88

Min.: 1
Mult.: 1

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

3RT20281BB40
Siemens
1: $616.48
6In Stock

Mfr. Part No.
3RT20281BB40

Mouser Part No
982-3RT20281BB40

Siemens

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

Datasheet

6In Stock

$616.48

$549.34

$524.49

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 38A 24VDC 2NO/2NC SCRW

3RT20281FB443MA0
Siemens
1: $723.91
4In Stock

Mfr. Part No.
3RT20281FB443MA0

Mouser Part No
982-3RT20281FB443MA0

Siemens

Contactors - Electromechanical CONTACTOR S0 38A 24VDC 2NO/2NC SCRW

Datasheet

4In Stock

$723.91

$644.57

Min.: 1
Mult.: 1

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

3RT20282BB40
Siemens
1: $619.15
5In Stock

Mfr. Part No.
3RT20282BB40

Mouser Part No
982-3RT20282BB40

Siemens

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

Datasheet

5In Stock

$619.15

$551.39

$526.42

Min.: 1
Mult.: 1

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

3RT20351KB443MA0
Siemens
1: $609.70
4In Stock

Mfr. Part No.
3RT20351KB443MA0

Mouser Part No
982-3RT20351KB443MA0

Siemens

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

Datasheet

4In Stock

$609.70

$546.37

$521.64

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 50A 230VAC SCREW 1NO/1NC

3RT20361AP00
Siemens
1: $374.01
19In Stock

Mfr. Part No.
3RT20361AP00

Mouser Part No
982-3RT20361AP00

Siemens

Contactors - Electromechanical CONTACTOR S2 50A 230VAC SCREW 1NO/1NC

Datasheet

19In Stock

$374.01

$373.99

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 50A 24VDC SCREW 1NO/1NC

3RT20361KB40
Siemens
1: $575.56
6In Stock

Mfr. Part No.
3RT20361KB40

Mouser Part No
982-3RT20361KB40

Siemens

Contactors - Electromechanical CONTACTOR S2 50A 24VDC SCREW 1NO/1NC

Datasheet

6In Stock

$575.56

$511.48

$489.21

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 50A 20-33VUC SPRING 1NO/1NC

3RT20363NB30
Siemens
1: $605.97
4In Stock

Mfr. Part No.
3RT20363NB30

Mouser Part No
982-3RT20363NB30

Siemens

Contactors - Electromechanical CONTACTOR S2 50A 20-33VUC SPRING 1NO/1NC

Datasheet

4In Stock

$605.97

$605.85

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 24VAC SCREW 1NO/1NC

3RT20371AC20
Siemens
1: $616.34
4In Stock

Mfr. Part No.
3RT20371AC20

Mouser Part No
982-3RT20371AC20

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 24VAC SCREW 1NO/1NC

Datasheet

4In Stock

$616.34

$549.62

$524.74

Min.: 1
Mult.: 1