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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 240VAC 1NO/1NC SCRW

3RT20281AP60
Siemens
1: $464.58
3In Stock

Mfr. Part No.
3RT20281AP60

Mouser Part No
982-3RT20281AP60

Siemens

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

Datasheet

3In Stock

$464.58

$424.14

Min.: 1
Mult.: 1

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

3RT20282AF00
Siemens
1: $485.94
2In Stock

Mfr. Part No.
3RT20282AF00

Mouser Part No
982-3RT20282AF00

Siemens

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

Datasheet

2In Stock

$485.94

$476.39

Min.: 1
Mult.: 1

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

3RT20351AB00
Siemens
1: $459.05
3In Stock

Mfr. Part No.
3RT20351AB00

Mouser Part No
982-3RT20351AB00

Siemens

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

Datasheet

3In Stock

$459.05

Min.: 1
Mult.: 1

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

3RT20351AC20
Siemens
1: $463.65
2In Stock

Mfr. Part No.
3RT20351AC20

Mouser Part No
982-3RT20351AC20

Siemens

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

Datasheet

2In Stock

$463.65

$412.80

$394.11

Min.: 1
Mult.: 1

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

3RT20351AL20
Siemens
1: $449.21
4In Stock

Mfr. Part No.
3RT20351AL20

Mouser Part No
982-3RT20351AL20

Siemens

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

Datasheet

4In Stock

$449.21

$412.80

$394.11

Min.: 1
Mult.: 1

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

3RT20351AP00
Siemens
1: $459.07
1In Stock

Mfr. Part No.
3RT20351AP00

Mouser Part No
982-3RT20351AP00

Siemens

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

Datasheet

1In Stock

$459.07

$459.05

Min.: 1
Mult.: 1

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

3RT20351KB40
Siemens
1: $599.46
3In Stock

Mfr. Part No.
3RT20351KB40

Mouser Part No
982-3RT20351KB40

Siemens

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

Datasheet

3In Stock

$599.46

$533.69

$509.54

Min.: 1
Mult.: 1

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

3RT20353KB40
Siemens
1: $605.42
3In Stock

Mfr. Part No.
3RT20353KB40

Mouser Part No
982-3RT20353KB40

Siemens

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

Datasheet

3In Stock

$605.42

$593.53

Min.: 1
Mult.: 1

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

3RT20361AC20
Siemens
1: $481.10
3In Stock

Mfr. Part No.
3RT20361AC20

Mouser Part No
982-3RT20361AC20

Siemens

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

Datasheet

3In Stock

$481.10

$440.94

$420.99

Min.: 1
Mult.: 1

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

3RT20361AG20
Siemens
1: $486.15
2In Stock
4Expected 28/9/2026

Mfr. Part No.
3RT20361AG20

Mouser Part No
982-3RT20361AG20

Siemens

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

Datasheet

2In Stock

4Expected 28/9/2026

$486.15

$440.94

$420.99

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 50A 230VAC SCREW 2NO/2NC

3RT20361AL24
Siemens
1: $526.97
1In Stock

Mfr. Part No.
3RT20361AL24

Mouser Part No
982-3RT20361AL24

Siemens

Contactors - Electromechanical CONTACTOR S2 50A 230VAC SCREW 2NO/2NC

Datasheet

1In Stock

$526.97

$526.96

Min.: 1
Mult.: 1

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

3RT20361AP60
Siemens
1: $486.15
3In Stock

Mfr. Part No.
3RT20361AP60

Mouser Part No
982-3RT20361AP60

Siemens

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

Datasheet

3In Stock

$486.15

$440.94

$420.99

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 50A 24VDC SCREW 2NO/2NC

3RT20361KB443MA0
Siemens
1: $659.63
1In Stock
3Expected 2/10/2026

Mfr. Part No.
3RT20361KB443MA0

Mouser Part No
982-3RT20361KB443MA0

Siemens

Contactors - Electromechanical CONTACTOR S2 50A 24VDC SCREW 2NO/2NC

Datasheet

1In Stock

3Expected 2/10/2026

$659.63

$598.60

Min.: 1
Mult.: 1

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

3RT20361NB30
Siemens
1: $629.82
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

$629.82

$568.29

$542.56

Min.: 1
Mult.: 1

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

3RT20363AK60
Siemens
1: $486.15
3In Stock

Mfr. Part No.
3RT20363AK60

Mouser Part No
982-3RT20363AK60

Siemens

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

Datasheet

3In Stock

$486.15

$432.78

$420.99

Min.: 1
Mult.: 1

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

3RT20363KB40
Siemens
1: $632.02
1In Stock

Mfr. Part No.
3RT20363KB40

Mouser Part No
982-3RT20363KB40

Siemens

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

Datasheet

1In Stock

$632.02

$632.01

Min.: 1
Mult.: 1

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

3RT20363XB400LA2
Siemens
1: $901.16
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

$901.16

$826.44

Min.: 1
Mult.: 1

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

3RT20371AG20
Siemens
1: $677.97
2In Stock

Mfr. Part No.
3RT20371AG20

Mouser Part No
982-3RT20371AG20

Siemens

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

Datasheet

2In Stock

$677.97

Quote

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 48VAC SCREW 1NO/1NC

3RT20371AH20
Siemens
1: $686.38
1In Stock

Mfr. Part No.
3RT20371AH20

Mouser Part No
982-3RT20371AH20

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 48VAC SCREW 1NO/1NC

Datasheet

1In Stock

$686.38

$686.36

Min.: 1
Mult.: 1

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

3RT20371AK60
Siemens
1: $672.15
3In Stock

Mfr. Part No.
3RT20371AK60

Mouser Part No
982-3RT20371AK60

Siemens

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

Datasheet

3In Stock

$672.15

$609.61

Min.: 1
Mult.: 1

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

3RT20371AL20
Siemens
1: $677.97
1In Stock

Mfr. Part No.
3RT20371AL20

Mouser Part No
982-3RT20371AL20

Siemens

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

Datasheet

1In Stock

$677.97

Quote

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 220VAC SCREW 1NO/1NC

3RT20371AN20
Siemens
1: $677.97
3In Stock

Mfr. Part No.
3RT20371AN20

Mouser Part No
982-3RT20371AN20

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 220VAC SCREW 1NO/1NC

Datasheet

3In Stock

$677.97

Quote

Min.: 1
Mult.: 1

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

3RT20371AP00
Siemens
1: $691.55
3In Stock

Mfr. Part No.
3RT20371AP00

Mouser Part No
982-3RT20371AP00

Siemens

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

Datasheet

3In Stock

$691.55

$677.96

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 240VAC SCREW 1NO/1NC

3RT20371AP60
Siemens
1: $672.15
1In Stock

Mfr. Part No.
3RT20371AP60

Mouser Part No
982-3RT20371AP60

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 240VAC SCREW 1NO/1NC

Datasheet

1In Stock

$672.15

$609.61

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 20-33VAC SCREW 1NO/1NC

3RT20371NB301AA0
Siemens
1: $844.82
1In Stock

Mfr. Part No.
3RT20371NB301AA0

Mouser Part No
982-3RT20371NB301AA0

Siemens

Contactors - Electromechanical CONTACTOR S2 20-33VAC SCREW 1NO/1NC

Datasheet

1In Stock

$844.82

$844.80

Min.: 1
Mult.: 1