Skip to Main Content

Part of the TTI Family of Specialists Contact Mouser (Singapore) +65 6788-9233 Feedback

Change Location

English SGD

In Stock RoHS

.hide-partial { max-height: none; } .show-more { display: none; }

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.

All Results (3,123)

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

3RT20373AL20
Siemens
1: $677.97
2In Stock

Mfr. Part No.
3RT20373AL20

Mouser Part No
982-3RT20373AL20

Siemens

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

Datasheet

2In Stock

$677.97

Quote

Min.: 1
Mult.: 1

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

3RT20381AC20
Siemens
1: $748.50
2In Stock

Mfr. Part No.
3RT20381AC20

Mouser Part No
982-3RT20381AC20

Siemens

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

Datasheet

2In Stock

$748.50

$684.88

Min.: 1
Mult.: 1

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

3RT20381AG20
Siemens
1: $748.50
1In Stock

Mfr. Part No.
3RT20381AG20

Mouser Part No
982-3RT20381AG20

Siemens

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

Datasheet

1In Stock

$748.50

$684.88

Min.: 1
Mult.: 1

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

3RT20381AG24
Siemens
1: $800.31
1In Stock

Mfr. Part No.
3RT20381AG24

Mouser Part No
982-3RT20381AG24

Siemens

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

Datasheet

1In Stock

$800.31

Min.: 1
Mult.: 1

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

3RT20381AK64
Siemens
1: $800.31
1In Stock

Mfr. Part No.
3RT20381AK64

Mouser Part No
982-3RT20381AK64

Siemens

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

Datasheet

1In Stock

$800.31

$800.29

Min.: 1
Mult.: 1

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

3RT20381AP00
Siemens
1: $761.71
3In Stock

Mfr. Part No.
3RT20381AP00

Mouser Part No
982-3RT20381AP00

Siemens

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

Datasheet

3In Stock

$761.71

$761.70

Min.: 1
Mult.: 1

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

3RT20381AP60
Siemens
1: $761.70
3In Stock

Mfr. Part No.
3RT20381AP60

Mouser Part No
982-3RT20381AP60

Siemens

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

Datasheet

3In Stock

$761.70

Min.: 1
Mult.: 1

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

3RT20381NP30
Siemens
1: $850.10
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

$850.10

$850.08

Min.: 1
Mult.: 1

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

3RT20383AK60
Siemens
1: $748.50
1In Stock

Mfr. Part No.
3RT20383AK60

Mouser Part No
982-3RT20383AK60

Siemens

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

Datasheet

1In Stock

$748.50

$684.88

Min.: 1
Mult.: 1

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

3RT20383KB443MA0
Siemens
1: $880.18
1In Stock

Mfr. Part No.
3RT20383KB443MA0

Mouser Part No
982-3RT20383KB443MA0

Siemens

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

Datasheet

1In Stock

$880.18

Min.: 1
Mult.: 1

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

3RT20383NB30
Siemens
1: $850.10
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

$850.10

$850.08

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR.AC3:37KW.1NO+1NC.230VAC 50HZ

3RT20451AP00
Siemens
1: $1,150.75
1In Stock

Mfr. Part No.
3RT20451AP00

Mouser Part No
982-3RT20451AP00

Siemens

Contactors - Electromechanical CONTACTOR.AC3:37KW.1NO+1NC.230VAC 50HZ

Datasheet

1In Stock

$1,150.75

$1,056.57

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR.AC3:55KW.110VAC50HZ/120V60HZ

3RT20471AK60
Siemens
1: $1,628.18
1In Stock

Mfr. Part No.
3RT20471AK60

Mouser Part No
982-3RT20471AK60

Siemens

Contactors - Electromechanical CONTACTOR.AC3:55KW.110VAC50HZ/120V60HZ

Datasheet

1In Stock

$1,628.18

$1,505.00

Min.: 1
Mult.: 1

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

3RT23161AK60
Siemens
1: $168.72
6In Stock

Mfr. Part No.
3RT23161AK60

Mouser Part No
982-3RT23161AK60

Siemens

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

Datasheet

6In Stock

$168.72

$152.03

$145.15

$140.16

$135.33

Min.: 1
Mult.: 1

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

3RT23161AP60
Siemens
1: $168.10
1In Stock

Mfr. Part No.
3RT23161AP60

Mouser Part No
982-3RT23161AP60

Siemens

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

Datasheet

1In Stock

$168.10

$152.03

$145.15

$140.16

$135.33

Min.: 1
Mult.: 1

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

3RT23162BB40
Siemens
1: $188.55
4In Stock

Mfr. Part No.
3RT23162BB40

Mouser Part No
982-3RT23162BB40

Siemens

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

Datasheet

4In Stock

$188.55

$169.48

$161.81

$156.25

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RES S00 20A 230VAC 4NO SCRW

3RT23171AP00
Siemens
1: $198.70
1In Stock

Mfr. Part No.
3RT23171AP00

Mouser Part No
982-3RT23171AP00

Siemens

Contactors - Electromechanical CONTACTOR RES S00 20A 230VAC 4NO SCRW

Datasheet

1In Stock

$198.70

$198.41

View

Min.: 1
Mult.: 1

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

3RT23171BA40
Siemens
1: $243.22
1In Stock

Mfr. Part No.
3RT23171BA40

Mouser Part No
982-3RT23171BA40

Siemens

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

Datasheet

1In Stock

$243.22

$240.98

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RES S00 20A 24VDC 4NO SCRW

3RT23171BB40
Siemens
1: $226.00
10In Stock
11Expected 24/8/2026

Mfr. Part No.
3RT23171BB40

Mouser Part No
982-3RT23171BB40

Siemens

Contactors - Electromechanical CONTACTOR RES S00 20A 24VDC 4NO SCRW

Datasheet

10In Stock

11Expected 24/8/2026

$226.00

$201.23

$192.13

$185.52

Min.: 1
Mult.: 1

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

3RT23251AB00
Siemens
1: $291.43
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

$291.43

$291.14

$288.67

View

Min.: 1
Mult.: 1

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

3RT23251AP60
Siemens
1: $290.84
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

$290.84

$263.32

$251.42

$242.76

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RES S0 42A 24VDC 5NO/1NC SCRW

3RT23271BB40
Siemens
1: $716.30
2In Stock

Mfr. Part No.
3RT23271BB40

Mouser Part No
982-3RT23271BB40

Siemens

Contactors - Electromechanical CONTACTOR RES S0 42A 24VDC 5NO/1NC SCRW

Datasheet

2In Stock

$716.30

$656.32

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR.AC1:140A.110VAC 50HZ/120V 60HZ

3RT24461AK60
Siemens
1: $1,261.69
1In Stock

Mfr. Part No.
3RT24461AK60

Mouser Part No
982-3RT24461AK60

Siemens

Contactors - Electromechanical CONTACTOR.AC1:140A.110VAC 50HZ/120V 60HZ

Datasheet

1In Stock

$1,261.69

$1,156.10

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 9A 120VAC 2NO/2NC SCRW

3RT25161AK60
Siemens
1: $160.68
5In Stock

Mfr. Part No.
3RT25161AK60

Mouser Part No
982-3RT25161AK60

Siemens

Contactors - Electromechanical CONTACTOR S00 9A 120VAC 2NO/2NC SCRW

Datasheet

5In Stock

$160.68

$143.09

$136.63

$131.92

$127.38

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S00 9A 24VDC 2NO/2NC SCRW

3RT25161BB40
Siemens
1: $183.03
11In Stock

Mfr. Part No.
3RT25161BB40

Mouser Part No
982-3RT25161BB40

Siemens

Contactors - Electromechanical CONTACTOR S00 9A 24VDC 2NO/2NC SCRW

Datasheet

11In Stock

$183.03

$164.29

$156.86

$151.46

Min.: 1
Mult.: 1