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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 32A 240VAC 1NO/1NC SPRG

3RT20272AP60
Siemens
1: $296.08
2In Stock

Mfr. Part No.
3RT20272AP60

Mouser Part No
982-3RT20272AP60

Siemens

Contactors - Electromechanical CONTACTOR S0 32A 240VAC 1NO/1NC SPRG

Datasheet

2In Stock

$296.08

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 32A 21-28VUC 1NO/1NC SPRG

3RT20272NB30
Siemens
1: $500.62
1In Stock

Mfr. Part No.
3RT20272NB30

Mouser Part No
982-3RT20272NB30

Siemens

Contactors - Electromechanical CONTACTOR S0 32A 21-28VUC 1NO/1NC SPRG

Datasheet

1In Stock

$500.62

$499.15

Min.: 1
Mult.: 1

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

3RT20281AB00
Siemens
1: $328.72
1In Stock

Mfr. Part No.
3RT20281AB00

Mouser Part No
982-3RT20281AB00

Siemens

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

Datasheet

1In Stock

$328.72

Min.: 1
Mult.: 1

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

3RT20281AC20
Siemens
1: $312.18
5In Stock

Mfr. Part No.
3RT20281AC20

Mouser Part No
982-3RT20281AC20

Siemens

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

Datasheet

5In Stock

$312.18

$278.02

$265.44

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 38A 110VAC 1NO/1NC SCRW

3RT20281AF00
Siemens
1: $270.12
5In Stock

Mfr. Part No.
3RT20281AF00

Mouser Part No
982-3RT20281AF00

Siemens

Contactors - Electromechanical CONTACTOR S0 38A 110VAC 1NO/1NC SCRW

Datasheet

5In Stock

$270.12

$270.11

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 38A 230VAC 1NO/1NC SCRW

3RT20281AL20
Siemens
1: $312.17
4In Stock

Mfr. Part No.
3RT20281AL20

Mouser Part No
982-3RT20281AL20

Siemens

Contactors - Electromechanical CONTACTOR S0 38A 230VAC 1NO/1NC SCRW

Datasheet

4In Stock

$312.17

$278.02

$265.44

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 38A 220VAC 1NO/1NC SCRW

3RT20281AN20
Siemens
1: $327.15
3In Stock

Mfr. Part No.
3RT20281AN20

Mouser Part No
982-3RT20281AN20

Siemens

Contactors - Electromechanical CONTACTOR S0 38A 220VAC 1NO/1NC SCRW

Datasheet

3In Stock

$327.15

$292.66

$279.41

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 38A 230VAC 1NO/1NC SCRW

3RT20281AP00
Siemens
1: $328.86
3In Stock

Mfr. Part No.
3RT20281AP00

Mouser Part No
982-3RT20281AP00

Siemens

Contactors - Electromechanical CONTACTOR S0 38A 230VAC 1NO/1NC SCRW

Datasheet

3In Stock

$328.86

$328.72

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 38A 240VAC 1NO/1NC SCRW

3RT20281AP60
Siemens
1: $245.39
5In Stock

Mfr. Part No.
3RT20281AP60

Mouser Part No
982-3RT20281AP60

Siemens

Contactors - Electromechanical CONTACTOR S0 38A 240VAC 1NO/1NC SCRW

Datasheet

5In Stock

$245.39

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 38A 110VAC 1NO/1NC SPRG

3RT20282AF00
Siemens
1: $335.46
2In Stock

Mfr. Part No.
3RT20282AF00

Mouser Part No
982-3RT20282AF00

Siemens

Contactors - Electromechanical CONTACTOR S0 38A 110VAC 1NO/1NC SPRG

Datasheet

2In Stock

$335.46

$328.72

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 40A 24VAC SCREW 1NO/1NC

3RT20351AB00
Siemens
1: $310.06
3In Stock

Mfr. Part No.
3RT20351AB00

Mouser Part No
982-3RT20351AB00

Siemens

Contactors - Electromechanical CONTACTOR S2 40A 24VAC SCREW 1NO/1NC

Datasheet

3In Stock

$310.06

$308.07

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 40A 24VAC SCREW 1NO/1NC

3RT20351AC20
Siemens
1: $300.87
3In Stock

Mfr. Part No.
3RT20351AC20

Mouser Part No
982-3RT20351AC20

Siemens

Contactors - Electromechanical CONTACTOR S2 40A 24VAC SCREW 1NO/1NC

Datasheet

3In Stock

$300.87

$267.96

$255.84

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 40A 120VAC SCREW 1NO/1NC

3RT20351AK60
Siemens
1: $300.96
2In Stock
5Expected 2026/03/25

Mfr. Part No.
3RT20351AK60

Mouser Part No
982-3RT20351AK60

Siemens

Contactors - Electromechanical CONTACTOR S2 40A 120VAC SCREW 1NO/1NC

Datasheet

2In Stock

5Expected 2026/03/25

$300.96

$267.96

$255.84

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 40A 230VAC SCREW 1NO/1NC

3RT20351AL20
Siemens
1: $298.54
4In Stock

Mfr. Part No.
3RT20351AL20

Mouser Part No
982-3RT20351AL20

Siemens

Contactors - Electromechanical CONTACTOR S2 40A 230VAC SCREW 1NO/1NC

Datasheet

4In Stock

$298.54

$267.96

$255.84

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 40A 230VAC SCREW 1NO/1NC

3RT20351AP00
Siemens
1: $311.42
1In Stock

Mfr. Part No.
3RT20351AP00

Mouser Part No
982-3RT20351AP00

Siemens

Contactors - Electromechanical CONTACTOR S2 40A 230VAC SCREW 1NO/1NC

Datasheet

1In Stock

$311.42

$310.75

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 40A 24VDC SCREW 1NO/1NC

3RT20351KB40
Siemens
1: $388.59
2In Stock

Mfr. Part No.
3RT20351KB40

Mouser Part No
982-3RT20351KB40

Siemens

Contactors - Electromechanical CONTACTOR S2 40A 24VDC SCREW 1NO/1NC

Datasheet

2In Stock

$388.59

$346.09

$330.44

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 40A 20-33VUC SCREW 1NO/1NC

3RT20351NB30
Siemens
1: $388.67
4In Stock

Mfr. Part No.
3RT20351NB30

Mouser Part No
982-3RT20351NB30

Siemens

Contactors - Electromechanical CONTACTOR S2 40A 20-33VUC SCREW 1NO/1NC

Datasheet

4In Stock

$388.67

$346.10

$330.44

Min.: 1
Mult.: 1

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

3RT20361AC20
Siemens
1: $321.17
3In Stock

Mfr. Part No.
3RT20361AC20

Mouser Part No
982-3RT20361AC20

Siemens

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

Datasheet

3In Stock

$321.17

$286.03

$273.08

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 50A 110VAC SCREW 1NO/1NC

3RT20361AG20
Siemens
1: $321.15
3In Stock

Mfr. Part No.
3RT20361AG20

Mouser Part No
982-3RT20361AG20

Siemens

Contactors - Electromechanical CONTACTOR S2 50A 110VAC SCREW 1NO/1NC

Datasheet

3In Stock

$321.15

$286.03

$273.08

Min.: 1
Mult.: 1

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

3RT20361AL20
Siemens
1: $328.71
3In Stock

Mfr. Part No.
3RT20361AL20

Mouser Part No
982-3RT20361AL20

Siemens

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

Datasheet

3In Stock

$328.71

$301.09

$287.46

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 50A 240VAC SCREW 1NO/1NC

3RT20361AP60
Siemens
1: $321.17
3In Stock

Mfr. Part No.
3RT20361AP60

Mouser Part No
982-3RT20361AP60

Siemens

Contactors - Electromechanical CONTACTOR S2 50A 240VAC SCREW 1NO/1NC

Datasheet

3In Stock

$321.17

$286.03

$273.08

Min.: 1
Mult.: 1

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

3RT20361NB30
Siemens
1: $423.75
2In Stock

Mfr. Part No.
3RT20361NB30

Mouser Part No
982-3RT20361NB30

Siemens

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

Datasheet

2In Stock

$423.75

$388.10

$370.54

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 50A 120VAC SPRING 1NO/1NC

3RT20363AK60
Siemens
1: $252.94
4In Stock

Mfr. Part No.
3RT20363AK60

Mouser Part No
982-3RT20363AK60

Siemens

Contactors - Electromechanical CONTACTOR S2 50A 120VAC SPRING 1NO/1NC

Datasheet

4In Stock

$252.94

Min.: 1
Mult.: 1

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

3RT20363XB400LA2
Siemens
1: $602.24
1In Stock

Mfr. Part No.
3RT20363XB400LA2

Mouser Part No
982-3RT20363XB400LA2

Siemens

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

Datasheet

1In Stock

$602.24

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 110VAC SCREW 1NO/1NC

3RT20371AG20
Siemens
1: $467.74
3In Stock

Mfr. Part No.
3RT20371AG20

Mouser Part No
982-3RT20371AG20

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 110VAC SCREW 1NO/1NC

Datasheet

3In Stock

$467.74

$467.62

Min.: 1
Mult.: 1