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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: $162.07
5In Stock

Mfr. Part No.
3RT20241AP60

Mouser Part No
982-3RT20241AP60

Siemens

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

Datasheet

5In Stock

$162.07

$144.37

$137.85

$133.11

$128.52

Min.: 1
Mult.: 1

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

3RT20241BB443MA0
Siemens
1: $317.43
5In Stock

Mfr. Part No.
3RT20241BB443MA0

Mouser Part No
982-3RT20241BB443MA0

Siemens

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

Datasheet

5In Stock

$317.43

Min.: 1
Mult.: 1

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

3RT20241BF40
Siemens
1: $310.39
3In Stock

Mfr. Part No.
3RT20241BF40

Mouser Part No
982-3RT20241BF40

Siemens

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

Datasheet

3In Stock

$310.39

$309.01

$307.04

$305.79

View

Min.: 1
Mult.: 1

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

3RT20242BB40
Siemens
1: $275.64
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

$275.64

$274.47

$265.02

Min.: 1
Mult.: 1

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

3RT20242FB40
Siemens
1: $390.77
3In Stock

Mfr. Part No.
3RT20242FB40

Mouser Part No
982-3RT20242FB40

Siemens

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

Datasheet

3In Stock

$390.77

$390.65

Min.: 1
Mult.: 1

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

3RT20251AB00
Siemens
1: $222.62
5In Stock

Mfr. Part No.
3RT20251AB00

Mouser Part No
982-3RT20251AB00

Siemens

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

Datasheet

5In Stock

$222.62

$199.76

$190.72

$184.16

Min.: 1
Mult.: 1

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

3RT20251AC20
Siemens
1: $213.06
5In Stock

Mfr. Part No.
3RT20251AC20

Mouser Part No
982-3RT20251AC20

Siemens

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

Datasheet

5In Stock

$213.06

$189.71

$181.13

$174.95

Min.: 1
Mult.: 1

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

3RT20251AF00
Siemens
1: $213.02
3In Stock

Mfr. Part No.
3RT20251AF00

Mouser Part No
982-3RT20251AF00

Siemens

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

Datasheet

3In Stock

$213.02

$189.76

$181.19

$174.95

Min.: 1
Mult.: 1

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

3RT20251AG20
Siemens
1: $153.85
5In Stock

Mfr. Part No.
3RT20251AG20

Mouser Part No
982-3RT20251AG20

Siemens

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

Datasheet

5In Stock

$153.85

Quote

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR_AC_3RT2025-1AL20_7.5kW_230V

3RT20251AL20
Siemens
1: $213.05
3In Stock

Mfr. Part No.
3RT20251AL20

Mouser Part No
982-3RT20251AL20

Siemens

Contactors - Electromechanical CONTACTOR_AC_3RT2025-1AL20_7.5kW_230V

Datasheet

3In Stock

$213.05

$189.76

$181.19

$174.95

Min.: 1
Mult.: 1

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

3RT20251AN20
Siemens
1: $187.12
3In Stock

Mfr. Part No.
3RT20251AN20

Mouser Part No
982-3RT20251AN20

Siemens

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

Datasheet

3In Stock

$187.12

Min.: 1
Mult.: 1

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

3RT20251AP00
Siemens
1: $158.47
4In Stock

Mfr. Part No.
3RT20251AP00

Mouser Part No
982-3RT20251AP00

Siemens

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

Datasheet

4In Stock

$158.47

Quote

Min.: 1
Mult.: 1

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

3RT20251AP60
Siemens
1: $213.02
4In Stock

Mfr. Part No.
3RT20251AP60

Mouser Part No
982-3RT20251AP60

Siemens

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

Datasheet

4In Stock

$213.02

$189.76

$181.19

$174.95

Min.: 1
Mult.: 1

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

3RT20251AV60
Siemens
1: $224.03
6In Stock

Mfr. Part No.
3RT20251AV60

Mouser Part No
982-3RT20251AV60

Siemens

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

Datasheet

6In Stock

$224.03

$199.62

$190.58

$184.02

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR AC 7.5kW 24V SZ S0

3RT20251BB40
Siemens
1: $270.36
6In Stock
10Expected 23/3/2026

Mfr. Part No.
3RT20251BB40

Mouser Part No
982-3RT20251BB40

Siemens

Contactors - Electromechanical CONTACTOR AC 7.5kW 24V SZ S0

Datasheet

6In Stock

10Expected 23/3/2026

$270.36

Min.: 1
Mult.: 1

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

3RT20251BB44
Siemens
1: $411.12
3In Stock

Mfr. Part No.
3RT20251BB44

Mouser Part No
982-3RT20251BB44

Siemens

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

Datasheet

3In Stock

$411.12

$366.21

$349.64

Min.: 1
Mult.: 1

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

3RT20251FB40
Siemens
1: $427.80
4In Stock

Mfr. Part No.
3RT20251FB40

Mouser Part No
982-3RT20251FB40

Siemens

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

Datasheet

4In Stock

$427.80

$381.00

$363.76

Min.: 1
Mult.: 1

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

3RT20251KB40
Siemens
1: $414.66
3In Stock

Mfr. Part No.
3RT20251KB40

Mouser Part No
982-3RT20251KB40

Siemens

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

Datasheet

3In Stock

$414.66

Min.: 1
Mult.: 1

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

3RT20252KB40
Siemens
1: $393.83
2In Stock

Mfr. Part No.
3RT20252KB40

Mouser Part No
982-3RT20252KB40

Siemens

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

Datasheet

2In Stock

$393.83

$350.71

$334.85

Min.: 1
Mult.: 1

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

3RT20261AB00
Siemens
1: $290.45
2In Stock

Mfr. Part No.
3RT20261AB00

Mouser Part No
982-3RT20261AB00

Siemens

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

Datasheet

2In Stock

$290.45

$290.30

Min.: 1
Mult.: 1

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

3RT20261AF00
Siemens
1: $270.69
6In Stock

Mfr. Part No.
3RT20261AF00

Mouser Part No
982-3RT20261AF00

Siemens

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

Datasheet

6In Stock

$270.69

$245.54

$234.44

$226.36

Min.: 1
Mult.: 1

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

3RT20261AG20
Siemens
1: $275.64
2In Stock

Mfr. Part No.
3RT20261AG20

Mouser Part No
982-3RT20261AG20

Siemens

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

Datasheet

2In Stock

$275.64

$245.54

$234.44

$226.36

Min.: 1
Mult.: 1

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

3RT20261AG60
Siemens
1: $303.38
2In Stock

Mfr. Part No.
3RT20261AG60

Mouser Part No
982-3RT20261AG60

Siemens

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

Datasheet

2In Stock

$303.38

Quote

Min.: 1
Mult.: 1

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

3RT20261AK60
Siemens
1: $275.65
3In Stock

Mfr. Part No.
3RT20261AK60

Mouser Part No
982-3RT20261AK60

Siemens

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

Datasheet

3In Stock

$275.65

$245.42

$234.31

$226.36

Min.: 1
Mult.: 1

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

3RT20261AL20
Siemens
1: $275.64
4In Stock
4Expected 13/3/2026

Mfr. Part No.
3RT20261AL20

Mouser Part No
982-3RT20261AL20

Siemens

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

Datasheet

4In Stock

4Expected 13/3/2026

$275.64

$245.54

$234.44

$226.36

Min.: 1
Mult.: 1