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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 21-28VUC 1NO/1NC SPRG

3RT20272NB30
Siemens
1: £375.79
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

£375.79

£374.68

Min.: 1
Mult.: 1

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

3RT20281AB00
Siemens
1: £246.75
1In Stock

Mfr. Part No.
3RT20281AB00

Mouser Part No
982-3RT20281AB00

Siemens

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

Datasheet

1In Stock

£246.75

Min.: 1
Mult.: 1

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

3RT20281AC20
Siemens
1: £234.34
5In Stock

Mfr. Part No.
3RT20281AC20

Mouser Part No
982-3RT20281AC20

Siemens

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

Datasheet

5In Stock

£234.34

£208.69

£199.25

Min.: 1
Mult.: 1

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

3RT20281AF00
Siemens
1: £202.76
5In Stock

Mfr. Part No.
3RT20281AF00

Mouser Part No
982-3RT20281AF00

Siemens

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

Datasheet

5In Stock

£202.76

£202.75

Min.: 1
Mult.: 1

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

3RT20281AL20
Siemens
1: £234.33
4In Stock

Mfr. Part No.
3RT20281AL20

Mouser Part No
982-3RT20281AL20

Siemens

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

Datasheet

4In Stock

£234.33

£208.69

£199.25

Min.: 1
Mult.: 1

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

3RT20281AN20
Siemens
1: £245.57
3In Stock

Mfr. Part No.
3RT20281AN20

Mouser Part No
982-3RT20281AN20

Siemens

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

Datasheet

3In Stock

£245.57

£219.68

£209.74

Min.: 1
Mult.: 1

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

3RT20281AP00
Siemens
1: £246.86
3In Stock

Mfr. Part No.
3RT20281AP00

Mouser Part No
982-3RT20281AP00

Siemens

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

Datasheet

3In Stock

£246.86

£246.75

Min.: 1
Mult.: 1

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

3RT20281AP60
Siemens
1: £184.20
5In Stock

Mfr. Part No.
3RT20281AP60

Mouser Part No
982-3RT20281AP60

Siemens

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

Datasheet

5In Stock

£184.20

Min.: 1
Mult.: 1

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

3RT20282AF00
Siemens
1: £251.81
2In Stock

Mfr. Part No.
3RT20282AF00

Mouser Part No
982-3RT20282AF00

Siemens

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

Datasheet

2In Stock

£251.81

£246.75

Min.: 1
Mult.: 1

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

3RT20351AB00
Siemens
1: £232.74
3In Stock

Mfr. Part No.
3RT20351AB00

Mouser Part No
982-3RT20351AB00

Siemens

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

Datasheet

3In Stock

£232.74

£231.25

Min.: 1
Mult.: 1

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

3RT20351AC20
Siemens
1: £225.85
3In Stock

Mfr. Part No.
3RT20351AC20

Mouser Part No
982-3RT20351AC20

Siemens

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

Datasheet

3In Stock

£225.85

£201.14

£192.04

Min.: 1
Mult.: 1

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

3RT20351AK60
Siemens
1: £225.91
2In Stock
5Expected 25/03/2026

Mfr. Part No.
3RT20351AK60

Mouser Part No
982-3RT20351AK60

Siemens

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

Datasheet

2In Stock

5Expected 25/03/2026

£225.91

£201.14

£192.04

Min.: 1
Mult.: 1

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

3RT20351AL20
Siemens
1: £224.10
4In Stock

Mfr. Part No.
3RT20351AL20

Mouser Part No
982-3RT20351AL20

Siemens

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

Datasheet

4In Stock

£224.10

£201.14

£192.04

Min.: 1
Mult.: 1

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

3RT20351AP00
Siemens
1: £233.76
1In Stock

Mfr. Part No.
3RT20351AP00

Mouser Part No
982-3RT20351AP00

Siemens

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

Datasheet

1In Stock

£233.76

£233.27

Min.: 1
Mult.: 1

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

3RT20351KB40
Siemens
1: £291.70
2In Stock

Mfr. Part No.
3RT20351KB40

Mouser Part No
982-3RT20351KB40

Siemens

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

Datasheet

2In Stock

£291.70

£259.79

£248.05

Min.: 1
Mult.: 1

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

3RT20351NB30
Siemens
1: £291.76
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

£291.76

£259.80

£248.05

Min.: 1
Mult.: 1

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

3RT20361AC20
Siemens
1: £241.09
3In Stock

Mfr. Part No.
3RT20361AC20

Mouser Part No
982-3RT20361AC20

Siemens

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

Datasheet

3In Stock

£241.09

£214.71

£204.99

Min.: 1
Mult.: 1

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

3RT20361AG20
Siemens
1: £241.07
3In Stock

Mfr. Part No.
3RT20361AG20

Mouser Part No
982-3RT20361AG20

Siemens

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

Datasheet

3In Stock

£241.07

£214.71

£204.99

Min.: 1
Mult.: 1

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

3RT20361AL20
Siemens
1: £246.74
3In Stock

Mfr. Part No.
3RT20361AL20

Mouser Part No
982-3RT20361AL20

Siemens

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

Datasheet

3In Stock

£246.74

£226.01

£215.78

Min.: 1
Mult.: 1

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

3RT20361AP60
Siemens
1: £241.09
3In Stock

Mfr. Part No.
3RT20361AP60

Mouser Part No
982-3RT20361AP60

Siemens

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

Datasheet

3In Stock

£241.09

£214.71

£204.99

Min.: 1
Mult.: 1

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

3RT20361NB30
Siemens
1: £318.09
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

£318.09

£291.33

£278.15

Min.: 1
Mult.: 1

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

3RT20363AK60
Siemens
1: £189.87
4In Stock

Mfr. Part No.
3RT20363AK60

Mouser Part No
982-3RT20363AK60

Siemens

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

Datasheet

4In Stock

£189.87

Min.: 1
Mult.: 1

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

3RT20363XB400LA2
Siemens
1: £452.07
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

£452.07

Min.: 1
Mult.: 1

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

3RT20371AG20
Siemens
1: £351.10
3In Stock

Mfr. Part No.
3RT20371AG20

Mouser Part No
982-3RT20371AG20

Siemens

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

Datasheet

3In Stock

£351.10

£351.02

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 230VAC SCREW 1NO/1NC

3RT20371AL20
Siemens
1: £351.10
3In Stock

Mfr. Part No.
3RT20371AL20

Mouser Part No
982-3RT20371AL20

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 230VAC SCREW 1NO/1NC

Datasheet

3In Stock

£351.10

£351.02

Min.: 1
Mult.: 1