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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 220VAC SCREW 1NO/1NC

3RT20371AN20
Siemens
1: $465.87
3In Stock

Mfr. Part No.
3RT20371AN20

Mouser Part No
982-3RT20371AN20

Siemens

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

Datasheet

3In Stock

$465.87

$463.83

Min.: 1
Mult.: 1

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

3RT20371AP00
Siemens
1: $477.19
3In Stock

Mfr. Part No.
3RT20371AP00

Mouser Part No
982-3RT20371AP00

Siemens

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

Datasheet

3In Stock

$477.19

$467.62

Min.: 1
Mult.: 1

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

3RT20371AP60
Siemens
1: $444.08
1In Stock

Mfr. Part No.
3RT20371AP60

Mouser Part No
982-3RT20371AP60

Siemens

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

Datasheet

1In Stock

$444.08

$395.48

$377.58

Min.: 1
Mult.: 1

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

3RT20371KB40
Siemens
1: $526.06
2In Stock
2Expected 2026/03/11

Mfr. Part No.
3RT20371KB40

Mouser Part No
982-3RT20371KB40

Siemens

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

Datasheet

2In Stock

2Expected 2026/03/11

$526.06

$470.46

Min.: 1
Mult.: 1

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

3RT20371NB30
Siemens
1: $528.27
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

$528.27

Min.: 1
Mult.: 1

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

3RT20371NB301AA0
Siemens
1: $583.01
1In Stock

Mfr. Part No.
3RT20371NB301AA0

Mouser Part No
982-3RT20371NB301AA0

Siemens

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

Datasheet

1In Stock

$583.01

Min.: 1
Mult.: 1

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

3RT20373AL20
Siemens
1: $465.20
2In Stock

Mfr. Part No.
3RT20373AL20

Mouser Part No
982-3RT20373AL20

Siemens

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

Datasheet

2In Stock

$465.20

$461.86

Min.: 1
Mult.: 1

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

3RT20373KB40
Siemens
1: $528.33
3In Stock

Mfr. Part No.
3RT20373KB40

Mouser Part No
982-3RT20373KB40

Siemens

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

Datasheet

3In Stock

$528.33

$470.46

Min.: 1
Mult.: 1

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

3RT20381AC20
Siemens
1: $499.14
2In Stock

Mfr. Part No.
3RT20381AC20

Mouser Part No
982-3RT20381AC20

Siemens

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

Datasheet

2In Stock

$499.14

$444.46

Min.: 1
Mult.: 1

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

3RT20381AG20
Siemens
1: $499.14
1In Stock

Mfr. Part No.
3RT20381AG20

Mouser Part No
982-3RT20381AG20

Siemens

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

Datasheet

1In Stock

$499.14

$444.46

Min.: 1
Mult.: 1

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

3RT20381AG24
Siemens
1: $547.49
1In Stock

Mfr. Part No.
3RT20381AG24

Mouser Part No
982-3RT20381AG24

Siemens

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

Datasheet

1In Stock

$547.49

Min.: 1
Mult.: 1

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

3RT20381AK64
Siemens
1: $552.36
1In Stock

Mfr. Part No.
3RT20381AK64

Mouser Part No
982-3RT20381AK64

Siemens

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

Datasheet

1In Stock

$552.36

Min.: 1
Mult.: 1

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

3RT20381AP00
Siemens
1: $536.15
3In Stock

Mfr. Part No.
3RT20381AP00

Mouser Part No
982-3RT20381AP00

Siemens

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

Datasheet

3In Stock

$536.15

$525.54

Min.: 1
Mult.: 1

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

3RT20381AP60
Siemens
1: $525.69
3In Stock

Mfr. Part No.
3RT20381AP60

Mouser Part No
982-3RT20381AP60

Siemens

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

Datasheet

3In Stock

$525.69

Min.: 1
Mult.: 1

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

3RT20381NP30
Siemens
1: $586.35
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

$586.35

Min.: 1
Mult.: 1

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

3RT20383AK60
Siemens
1: $499.17
1In Stock

Mfr. Part No.
3RT20383AK60

Mouser Part No
982-3RT20383AK60

Siemens

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

Datasheet

1In Stock

$499.17

Min.: 1
Mult.: 1

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

3RT20383KB443MA0
Siemens
1: $607.45
1In Stock

Mfr. Part No.
3RT20383KB443MA0

Mouser Part No
982-3RT20383KB443MA0

Siemens

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

Datasheet

1In Stock

$607.45

Min.: 1
Mult.: 1

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

3RT20383NB30
Siemens
1: $586.58
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

$586.58

Min.: 1
Mult.: 1

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

3RT20451KB40
Siemens
1: $1,077.59
1In Stock

Mfr. Part No.
3RT20451KB40

Mouser Part No
982-3RT20451KB40

Siemens

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

Datasheet

1In Stock

$1,077.59

$994.62

Min.: 1
Mult.: 1

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

3RT23161AK60
Siemens
1: $110.59
6In Stock

Mfr. Part No.
3RT23161AK60

Mouser Part No
982-3RT23161AK60

Siemens

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

Datasheet

6In Stock

$110.59

$98.48

$94.03

$90.78

$87.67

Min.: 1
Mult.: 1

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

3RT23161AP60
Siemens
1: $110.55
3In Stock

Mfr. Part No.
3RT23161AP60

Mouser Part No
982-3RT23161AP60

Siemens

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

Datasheet

3In Stock

$110.55

$98.48

$94.03

$90.78

$87.67

Min.: 1
Mult.: 1

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

3RT23161BB40
Siemens
1: $123.38
4In Stock

Mfr. Part No.
3RT23161BB40

Mouser Part No
982-3RT23161BB40

Siemens

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

Datasheet

4In Stock

$123.38

$109.86

$104.89

$101.29

$97.80

Min.: 1
Mult.: 1

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

3RT23162BB40
Siemens
1: $124.64
5In Stock

Mfr. Part No.
3RT23162BB40

Mouser Part No
982-3RT23162BB40

Siemens

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

Datasheet

5In Stock

$124.64

$120.46

Min.: 1
Mult.: 1

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

3RT23171BA40
Siemens
1: $167.43
1In Stock

Mfr. Part No.
3RT23171BA40

Mouser Part No
982-3RT23171BA40

Siemens

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

Datasheet

1In Stock

$167.43

Min.: 1
Mult.: 1

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

3RT23251AB00
Siemens
1: $195.87
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

$195.87

$193.21

$190.16

View

Min.: 1
Mult.: 1