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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 S2 65A 230VAC SCREW 1NO/1NC

3RT20371AP00
Siemens
1: $663.18
3In Stock

Mfr. Part No.
3RT20371AP00

Mouser Part No
982-3RT20371AP00

Siemens

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

Datasheet

3In Stock

$663.18

$649.87

Min.: 1
Mult.: 1

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

3RT20371AP60
Siemens
1: $617.16
1In Stock

Mfr. Part No.
3RT20371AP60

Mouser Part No
982-3RT20371AP60

Siemens

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

Datasheet

1In Stock

$617.16

$549.62

$524.74

Min.: 1
Mult.: 1

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

3RT20371KB40
Siemens
1: $731.08
2In Stock
2Expected 11/3/2026

Mfr. Part No.
3RT20371KB40

Mouser Part No
982-3RT20371KB40

Siemens

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

Datasheet

2In Stock

2Expected 11/3/2026

$731.08

$653.81

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 20-33VUC SCREW 1NO/1NC

3RT20371NB30
Siemens
1: $734.17
3In Stock

Mfr. Part No.
3RT20371NB30

Mouser Part No
982-3RT20371NB30

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 20-33VUC SCREW 1NO/1NC

Datasheet

3In Stock

$734.17

Min.: 1
Mult.: 1

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

3RT20371NB301AA0
Siemens
1: $810.24
1In Stock

Mfr. Part No.
3RT20371NB301AA0

Mouser Part No
982-3RT20371NB301AA0

Siemens

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

Datasheet

1In Stock

$810.24

Min.: 1
Mult.: 1

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

3RT20373AL20
Siemens
1: $646.52
2In Stock

Mfr. Part No.
3RT20373AL20

Mouser Part No
982-3RT20373AL20

Siemens

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

Datasheet

2In Stock

$646.52

$641.87

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 24VDC SPRING 1NO/1NC

3RT20373KB40
Siemens
1: $734.24
3In Stock

Mfr. Part No.
3RT20373KB40

Mouser Part No
982-3RT20373KB40

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 24VDC SPRING 1NO/1NC

Datasheet

3In Stock

$734.24

$653.81

Min.: 1
Mult.: 1

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

3RT20381AC20
Siemens
1: $693.68
2In Stock

Mfr. Part No.
3RT20381AC20

Mouser Part No
982-3RT20381AC20

Siemens

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

Datasheet

2In Stock

$693.68

$617.69

Min.: 1
Mult.: 1

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

3RT20381AG20
Siemens
1: $693.68
1In Stock

Mfr. Part No.
3RT20381AG20

Mouser Part No
982-3RT20381AG20

Siemens

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

Datasheet

1In Stock

$693.68

$617.69

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 110VAC SCREW 2NO/2NC

3RT20381AG24
Siemens
1: $760.89
1In Stock

Mfr. Part No.
3RT20381AG24

Mouser Part No
982-3RT20381AG24

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 110VAC SCREW 2NO/2NC

Datasheet

1In Stock

$760.89

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 120VAC SCREW 2NO/2NC

3RT20381AK64
Siemens
1: $767.64
1In Stock

Mfr. Part No.
3RT20381AK64

Mouser Part No
982-3RT20381AK64

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 120VAC SCREW 2NO/2NC

Datasheet

1In Stock

$767.64

Min.: 1
Mult.: 1

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

3RT20381AP00
Siemens
1: $745.12
3In Stock

Mfr. Part No.
3RT20381AP00

Mouser Part No
982-3RT20381AP00

Siemens

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

Datasheet

3In Stock

$745.12

$730.36

Min.: 1
Mult.: 1

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

3RT20381AP60
Siemens
1: $730.57
3In Stock

Mfr. Part No.
3RT20381AP60

Mouser Part No
982-3RT20381AP60

Siemens

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

Datasheet

3In Stock

$730.57

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 175-280VUC SCRW 1NO/1NC

3RT20381NP30
Siemens
1: $814.87
1In Stock

Mfr. Part No.
3RT20381NP30

Mouser Part No
982-3RT20381NP30

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 175-280VUC SCRW 1NO/1NC

Datasheet

1In Stock

$814.87

Min.: 1
Mult.: 1

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

3RT20383AK60
Siemens
1: $693.72
1In Stock

Mfr. Part No.
3RT20383AK60

Mouser Part No
982-3RT20383AK60

Siemens

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

Datasheet

1In Stock

$693.72

Min.: 1
Mult.: 1

Contactors - Electromechanical COUPLING CONT..AC3:37KW 2NO+2NC 24VDC

3RT20383KB443MA0
Siemens
1: $844.20
1In Stock

Mfr. Part No.
3RT20383KB443MA0

Mouser Part No
982-3RT20383KB443MA0

Siemens

Contactors - Electromechanical COUPLING CONT..AC3:37KW 2NO+2NC 24VDC

Datasheet

1In Stock

$844.20

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S2 65A 20-33VUC SPRING 1NO/1NC

3RT20383NB30
Siemens
1: $815.21
1In Stock

Mfr. Part No.
3RT20383NB30

Mouser Part No
982-3RT20383NB30

Siemens

Contactors - Electromechanical CONTACTOR S2 65A 20-33VUC SPRING 1NO/1NC

Datasheet

1In Stock

$815.21

Min.: 1
Mult.: 1

Contactors - Electromechanical COUPL. CONT.. AC3:37KW. 1NO+1NC. 24VDC

3RT20451KB40
Siemens
1: $1,497.57
1In Stock

Mfr. Part No.
3RT20451KB40

Mouser Part No
982-3RT20451KB40

Siemens

Contactors - Electromechanical COUPL. CONT.. AC3:37KW. 1NO+1NC. 24VDC

Datasheet

1In Stock

$1,497.57

$1,382.27

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RES S00 18A 120VAC 4NO SCRW

3RT23161AK60
Siemens
1: $153.69
6In Stock

Mfr. Part No.
3RT23161AK60

Mouser Part No
982-3RT23161AK60

Siemens

Contactors - Electromechanical CONTACTOR RES S00 18A 120VAC 4NO SCRW

Datasheet

6In Stock

$153.69

$136.86

$130.67

$126.17

$121.83

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RES S00 18A 240VAC 4NO SCRW

3RT23161AP60
Siemens
1: $153.64
3In Stock

Mfr. Part No.
3RT23161AP60

Mouser Part No
982-3RT23161AP60

Siemens

Contactors - Electromechanical CONTACTOR RES S00 18A 240VAC 4NO SCRW

Datasheet

3In Stock

$153.64

$136.86

$130.67

$126.17

$121.83

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RES S00 18A 24VDC 4NO SCRW

3RT23161BB40
Siemens
1: $171.47
4In Stock

Mfr. Part No.
3RT23161BB40

Mouser Part No
982-3RT23161BB40

Siemens

Contactors - Electromechanical CONTACTOR RES S00 18A 24VDC 4NO SCRW

Datasheet

4In Stock

$171.47

$152.68

$145.77

$140.77

$135.91

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RES S00 18A 24VDC 4NO SPRG

3RT23162BB40
Siemens
1: $173.22
5In Stock

Mfr. Part No.
3RT23162BB40

Mouser Part No
982-3RT23162BB40

Siemens

Contactors - Electromechanical CONTACTOR RES S00 18A 24VDC 4NO SPRG

Datasheet

5In Stock

$173.22

$167.41

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RES S00 20A 12VDC 4NO SCRW

3RT23171BA40
Siemens
1: $232.69
1In Stock

Mfr. Part No.
3RT23171BA40

Mouser Part No
982-3RT23171BA40

Siemens

Contactors - Electromechanical CONTACTOR RES S00 20A 12VDC 4NO SCRW

Datasheet

1In Stock

$232.69

$232.67

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RES S0 30A 24VAC 5NO/1NC SCRW

3RT23251AB00
Siemens
1: $272.22
1In Stock

Mfr. Part No.
3RT23251AB00

Mouser Part No
982-3RT23251AB00

Siemens

Contactors - Electromechanical CONTACTOR RES S0 30A 24VAC 5NO/1NC SCRW

Datasheet

1In Stock

$272.22

$268.52

$264.28

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RES S0 30A 240VAC 5NO/1NC SCRW

3RT23251AP60
Siemens
1: $222.59
2In Stock

Mfr. Part No.
3RT23251AP60

Mouser Part No
982-3RT23251AP60

Siemens

Contactors - Electromechanical CONTACTOR RES S0 30A 240VAC 5NO/1NC SCRW

Datasheet

2In Stock

$222.59

$198.20

$190.18

Min.: 1
Mult.: 1