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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

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

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

3RT20371AN20
Siemens
1: £349.71
3In Stock

Mfr. Part No.
3RT20371AN20

Mouser Part No
982-3RT20371AN20

Siemens

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

Datasheet

3In Stock

£349.71

£348.17

Min.: 1
Mult.: 1

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

3RT20371AP00
Siemens
1: £358.20
3In Stock

Mfr. Part No.
3RT20371AP00

Mouser Part No
982-3RT20371AP00

Siemens

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

Datasheet

3In Stock

£358.20

£351.02

Min.: 1
Mult.: 1

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

3RT20371AP60
Siemens
1: £333.35
1In Stock

Mfr. Part No.
3RT20371AP60

Mouser Part No
982-3RT20371AP60

Siemens

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

Datasheet

1In Stock

£333.35

£296.86

£283.43

Min.: 1
Mult.: 1

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

3RT20371KB40
Siemens
1: £394.88
2In Stock
2Expected 11/03/2026

Mfr. Part No.
3RT20371KB40

Mouser Part No
982-3RT20371KB40

Siemens

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

Datasheet

2In Stock

2Expected 11/03/2026

£394.88

£353.15

Min.: 1
Mult.: 1

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

3RT20371NB30
Siemens
1: £396.54
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

£396.54

Min.: 1
Mult.: 1

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

3RT20371NB301AA0
Siemens
1: £437.63
1In Stock

Mfr. Part No.
3RT20371NB301AA0

Mouser Part No
982-3RT20371NB301AA0

Siemens

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

Datasheet

1In Stock

£437.63

Min.: 1
Mult.: 1

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

3RT20373AL20
Siemens
1: £349.20
2In Stock

Mfr. Part No.
3RT20373AL20

Mouser Part No
982-3RT20373AL20

Siemens

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

Datasheet

2In Stock

£349.20

£346.69

Min.: 1
Mult.: 1

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

3RT20373KB40
Siemens
1: £396.59
3In Stock

Mfr. Part No.
3RT20373KB40

Mouser Part No
982-3RT20373KB40

Siemens

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

Datasheet

3In Stock

£396.59

£353.15

Min.: 1
Mult.: 1

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

3RT20381AC20
Siemens
1: £374.67
2In Stock

Mfr. Part No.
3RT20381AC20

Mouser Part No
982-3RT20381AC20

Siemens

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

Datasheet

2In Stock

£374.67

£333.63

Min.: 1
Mult.: 1

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

3RT20381AG20
Siemens
1: £374.67
1In Stock

Mfr. Part No.
3RT20381AG20

Mouser Part No
982-3RT20381AG20

Siemens

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

Datasheet

1In Stock

£374.67

£333.63

Min.: 1
Mult.: 1

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

3RT20381AG24
Siemens
1: £410.97
1In Stock

Mfr. Part No.
3RT20381AG24

Mouser Part No
982-3RT20381AG24

Siemens

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

Datasheet

1In Stock

£410.97

Min.: 1
Mult.: 1

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

3RT20381AK64
Siemens
1: £414.62
1In Stock

Mfr. Part No.
3RT20381AK64

Mouser Part No
982-3RT20381AK64

Siemens

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

Datasheet

1In Stock

£414.62

Min.: 1
Mult.: 1

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

3RT20381AP00
Siemens
1: £402.46
3In Stock

Mfr. Part No.
3RT20381AP00

Mouser Part No
982-3RT20381AP00

Siemens

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

Datasheet

3In Stock

£402.46

£394.49

Min.: 1
Mult.: 1

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

3RT20381AP60
Siemens
1: £394.60
3In Stock

Mfr. Part No.
3RT20381AP60

Mouser Part No
982-3RT20381AP60

Siemens

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

Datasheet

3In Stock

£394.60

Min.: 1
Mult.: 1

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

3RT20381NP30
Siemens
1: £440.14
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

£440.14

Min.: 1
Mult.: 1

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

3RT20383AK60
Siemens
1: £374.70
1In Stock

Mfr. Part No.
3RT20383AK60

Mouser Part No
982-3RT20383AK60

Siemens

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

Datasheet

1In Stock

£374.70

Min.: 1
Mult.: 1

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

3RT20383KB443MA0
Siemens
1: £455.98
1In Stock

Mfr. Part No.
3RT20383KB443MA0

Mouser Part No
982-3RT20383KB443MA0

Siemens

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

Datasheet

1In Stock

£455.98

Min.: 1
Mult.: 1

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

3RT20383NB30
Siemens
1: £440.32
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

£440.32

Min.: 1
Mult.: 1

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

3RT20451KB40
Siemens
1: £808.89
1In Stock

Mfr. Part No.
3RT20451KB40

Mouser Part No
982-3RT20451KB40

Siemens

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

Datasheet

1In Stock

£808.89

£746.61

Min.: 1
Mult.: 1

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

3RT23161AK60
Siemens
1: £83.01
6In Stock

Mfr. Part No.
3RT23161AK60

Mouser Part No
982-3RT23161AK60

Siemens

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

Datasheet

6In Stock

£83.01

£73.93

£70.58

£68.15

£65.81

Min.: 1
Mult.: 1

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

3RT23161AP60
Siemens
1: £82.99
3In Stock

Mfr. Part No.
3RT23161AP60

Mouser Part No
982-3RT23161AP60

Siemens

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

Datasheet

3In Stock

£82.99

£73.93

£70.58

£68.15

£65.81

Min.: 1
Mult.: 1

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

3RT23161BB40
Siemens
1: £92.62
4In Stock

Mfr. Part No.
3RT23161BB40

Mouser Part No
982-3RT23161BB40

Siemens

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

Datasheet

4In Stock

£92.62

£82.46

£78.74

£76.03

£73.41

Min.: 1
Mult.: 1

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

3RT23162BB40
Siemens
1: £93.56
5In Stock

Mfr. Part No.
3RT23162BB40

Mouser Part No
982-3RT23162BB40

Siemens

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

Datasheet

5In Stock

£93.56

£90.43

Min.: 1
Mult.: 1

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

3RT23171BA40
Siemens
1: £125.68
1In Stock

Mfr. Part No.
3RT23171BA40

Mouser Part No
982-3RT23171BA40

Siemens

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

Datasheet

1In Stock

£125.68

Min.: 1
Mult.: 1