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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 12A 240VAC 1NO/1NC SCRW

3RT20241AP60
Siemens
1: €100.28
5In Stock

Mfr. Part No.
3RT20241AP60

Mouser Part No
982-3RT20241AP60

Siemens

Contactors - Electromechanical CONTACTOR S0 12A 240VAC 1NO/1NC SCRW

Datasheet

5In Stock

€100.28

€89.32

€85.29

€82.35

€79.52

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 12A 24VDC 2NO/2NC SCRW

3RT20241BB443MA0
Siemens
1: €196.40
5In Stock

Mfr. Part No.
3RT20241BB443MA0

Mouser Part No
982-3RT20241BB443MA0

Siemens

Contactors - Electromechanical CONTACTOR S0 12A 24VDC 2NO/2NC SCRW

Datasheet

5In Stock

€196.40

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 12A 110VDC 1NO/1NC SCRW

3RT20241BF40
Siemens
1: €192.04
3In Stock

Mfr. Part No.
3RT20241BF40

Mouser Part No
982-3RT20241BF40

Siemens

Contactors - Electromechanical CONTACTOR S0 12A 110VDC 1NO/1NC SCRW

Datasheet

3In Stock

€192.04

€191.19

€189.97

€189.19

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR DC 5.5kW 24V 3POLE SZ S0

3RT20242BB40
Siemens
1: €170.54
1In Stock

Mfr. Part No.
3RT20242BB40

Mouser Part No
982-3RT20242BB40

Siemens

Contactors - Electromechanical CONTACTOR DC 5.5kW 24V 3POLE SZ S0

Datasheet

1In Stock

€170.54

€169.82

€163.97

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 12A 24VDC 1NO/1NC SPRG

3RT20242FB40
Siemens
1: €241.77
3In Stock

Mfr. Part No.
3RT20242FB40

Mouser Part No
982-3RT20242FB40

Siemens

Contactors - Electromechanical CONTACTOR S0 12A 24VDC 1NO/1NC SPRG

Datasheet

3In Stock

€241.77

€241.69

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 24VAC 1NO/1NC SCRW

3RT20251AB00
Siemens
1: €137.74
5In Stock

Mfr. Part No.
3RT20251AB00

Mouser Part No
982-3RT20251AB00

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 24VAC 1NO/1NC SCRW

Datasheet

5In Stock

€137.74

€123.59

€118.00

€113.94

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 24VAC 1NO/1NC SCRW

3RT20251AC20
Siemens
1: €131.82
5In Stock

Mfr. Part No.
3RT20251AC20

Mouser Part No
982-3RT20251AC20

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 24VAC 1NO/1NC SCRW

Datasheet

5In Stock

€131.82

€117.37

€112.07

€108.24

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 110VAC 1NO/1NC SCRW

3RT20251AF00
Siemens
1: €131.80
3In Stock

Mfr. Part No.
3RT20251AF00

Mouser Part No
982-3RT20251AF00

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 110VAC 1NO/1NC SCRW

Datasheet

3In Stock

€131.80

€117.41

€112.10

€108.24

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 110VAC 1NO/1NC SCRW

3RT20251AG20
Siemens
1: €98.85
5In Stock

Mfr. Part No.
3RT20251AG20

Mouser Part No
982-3RT20251AG20

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 110VAC 1NO/1NC SCRW

Datasheet

5In Stock

€98.85

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR_AC_3RT2025-1AL20_7.5kW_230V

3RT20251AL20
Siemens
1: €131.81
3In Stock

Mfr. Part No.
3RT20251AL20

Mouser Part No
982-3RT20251AL20

Siemens

Contactors - Electromechanical CONTACTOR_AC_3RT2025-1AL20_7.5kW_230V

Datasheet

3In Stock

€131.81

€117.41

€112.10

€108.24

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 220VAC 1NO/1NC SCRW

3RT20251AN20
Siemens
1: €115.77
3In Stock

Mfr. Part No.
3RT20251AN20

Mouser Part No
982-3RT20251AN20

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 220VAC 1NO/1NC SCRW

Datasheet

3In Stock

€115.77

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 230VAC 1NO/1NC SCRW

3RT20251AP00
Siemens
1: €98.85
4In Stock

Mfr. Part No.
3RT20251AP00

Mouser Part No
982-3RT20251AP00

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 230VAC 1NO/1NC SCRW

Datasheet

4In Stock

€98.85

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 240VAC 1NO/1NC SCRW

3RT20251AP60
Siemens
1: €131.80
4In Stock

Mfr. Part No.
3RT20251AP60

Mouser Part No
982-3RT20251AP60

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 240VAC 1NO/1NC SCRW

Datasheet

4In Stock

€131.80

€117.41

€112.10

€108.24

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 480VAC 1NO/1NC SCRW

3RT20251AV60
Siemens
1: €138.61
6In Stock

Mfr. Part No.
3RT20251AV60

Mouser Part No
982-3RT20251AV60

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 480VAC 1NO/1NC SCRW

Datasheet

6In Stock

€138.61

€123.50

€117.91

€113.86

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR AC 7.5kW 24V SZ S0

3RT20251BB40
Siemens
1: €176.22
6In Stock
10Expected 23/03/2026

Mfr. Part No.
3RT20251BB40

Mouser Part No
982-3RT20251BB40

Siemens

Contactors - Electromechanical CONTACTOR AC 7.5kW 24V SZ S0

Datasheet

6In Stock

10Expected 23/03/2026

€176.22

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 24VDC 2NO/2NC SCRW

3RT20251BB44
Siemens
1: €254.36
3In Stock

Mfr. Part No.
3RT20251BB44

Mouser Part No
982-3RT20251BB44

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 24VDC 2NO/2NC SCRW

Datasheet

3In Stock

€254.36

€226.58

€216.32

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 24VDC 1NO/1NC SCRW

3RT20251FB40
Siemens
1: €264.68
4In Stock

Mfr. Part No.
3RT20251FB40

Mouser Part No
982-3RT20251FB40

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 24VDC 1NO/1NC SCRW

Datasheet

4In Stock

€264.68

€235.73

€225.06

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 24VDC 1NO/1NC SCRW

3RT20251KB40
Siemens
1: €256.56
3In Stock

Mfr. Part No.
3RT20251KB40

Mouser Part No
982-3RT20251KB40

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 24VDC 1NO/1NC SCRW

Datasheet

3In Stock

€256.56

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 16A 24VDC 1NO/1NC SPRG

3RT20252KB40
Siemens
1: €243.66
2In Stock

Mfr. Part No.
3RT20252KB40

Mouser Part No
982-3RT20252KB40

Siemens

Contactors - Electromechanical CONTACTOR S0 16A 24VDC 1NO/1NC SPRG

Datasheet

2In Stock

€243.66

€216.99

€207.17

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 25A 24VAC 1NO/1NC SCRW

3RT20261AB00
Siemens
1: €179.71
2In Stock

Mfr. Part No.
3RT20261AB00

Mouser Part No
982-3RT20261AB00

Siemens

Contactors - Electromechanical CONTACTOR S0 25A 24VAC 1NO/1NC SCRW

Datasheet

2In Stock

€179.71

€179.61

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 25A 110VAC 1NO/1NC SCRW

3RT20261AF00
Siemens
1: €167.48
6In Stock

Mfr. Part No.
3RT20261AF00

Mouser Part No
982-3RT20261AF00

Siemens

Contactors - Electromechanical CONTACTOR S0 25A 110VAC 1NO/1NC SCRW

Datasheet

6In Stock

€167.48

€151.92

€145.05

€140.05

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 25A 110VAC 1NO/1NC SCRW

3RT20261AG20
Siemens
1: €170.54
2In Stock

Mfr. Part No.
3RT20261AG20

Mouser Part No
982-3RT20261AG20

Siemens

Contactors - Electromechanical CONTACTOR S0 25A 110VAC 1NO/1NC SCRW

Datasheet

2In Stock

€170.54

€151.92

€145.05

€140.05

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 25A 100VAC 1NO/1NC SCRW

3RT20261AG60
Siemens
1: €187.70
2In Stock

Mfr. Part No.
3RT20261AG60

Mouser Part No
982-3RT20261AG60

Siemens

Contactors - Electromechanical CONTACTOR S0 25A 100VAC 1NO/1NC SCRW

Datasheet

2In Stock

€187.70

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 25A 120VAC 1NO/1NC SCRW

3RT20261AK60
Siemens
1: €170.55
3In Stock

Mfr. Part No.
3RT20261AK60

Mouser Part No
982-3RT20261AK60

Siemens

Contactors - Electromechanical CONTACTOR S0 25A 120VAC 1NO/1NC SCRW

Datasheet

3In Stock

€170.55

€151.84

€144.97

€140.05

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR S0 25A 230VAC 1NO/1NC SCRW

3RT20261AL20
Siemens
1: €170.54
4In Stock
4Expected 13/03/2026

Mfr. Part No.
3RT20261AL20

Mouser Part No
982-3RT20261AL20

Siemens

Contactors - Electromechanical CONTACTOR S0 25A 230VAC 1NO/1NC SCRW

Datasheet

4In Stock

4Expected 13/03/2026

€170.54

€151.92

€145.05

€140.05

Min.: 1
Mult.: 1