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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: $180.73
5In Stock

Mfr. Part #
3RT20241AP60

Mouser Part #
982-3RT20241AP60

Siemens

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

Datasheet

5In Stock

$180.73

$160.98

$153.71

$148.43

$143.31

Min.: 1
Mult.: 1

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

3RT20241BB443MA0
Siemens
1: $353.97
5In Stock

Mfr. Part #
3RT20241BB443MA0

Mouser Part #
982-3RT20241BB443MA0

Siemens

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

Datasheet

5In Stock

$353.97

Min.: 1
Mult.: 1

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

3RT20241BF40
Siemens
1: $346.12
3In Stock

Mfr. Part #
3RT20241BF40

Mouser Part #
982-3RT20241BF40

Siemens

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

Datasheet

3In Stock

$346.12

$344.58

$342.38

$340.98

View

Min.: 1
Mult.: 1

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

3RT20242BB40
Siemens
1: $307.37
1In Stock

Mfr. Part #
3RT20242BB40

Mouser Part #
982-3RT20242BB40

Siemens

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

Datasheet

1In Stock

$307.37

$306.06

$295.52

Min.: 1
Mult.: 1

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

3RT20242FB40
Siemens
1: $435.75
3In Stock

Mfr. Part #
3RT20242FB40

Mouser Part #
982-3RT20242FB40

Siemens

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

Datasheet

3In Stock

$435.75

$435.61

Min.: 1
Mult.: 1

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

3RT20251AB00
Siemens
1: $248.25
5In Stock

Mfr. Part #
3RT20251AB00

Mouser Part #
982-3RT20251AB00

Siemens

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

Datasheet

5In Stock

$248.25

$222.75

$212.68

$205.36

Min.: 1
Mult.: 1

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

3RT20251AC20
Siemens
1: $237.58
5In Stock

Mfr. Part #
3RT20251AC20

Mouser Part #
982-3RT20251AC20

Siemens

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

Datasheet

5In Stock

$237.58

$211.54

$201.98

$195.08

Min.: 1
Mult.: 1

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

3RT20251AF00
Siemens
1: $237.54
3In Stock

Mfr. Part #
3RT20251AF00

Mouser Part #
982-3RT20251AF00

Siemens

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

Datasheet

3In Stock

$237.54

$211.61

$202.04

$195.08

Min.: 1
Mult.: 1

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

3RT20251AG20
Siemens
1: $171.55
5In Stock

Mfr. Part #
3RT20251AG20

Mouser Part #
982-3RT20251AG20

Siemens

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

Datasheet

5In Stock

$171.55

Quote

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR_AC_3RT2025-1AL20_7.5kW_230V

3RT20251AL20
Siemens
1: $237.57
3In Stock

Mfr. Part #
3RT20251AL20

Mouser Part #
982-3RT20251AL20

Siemens

Contactors - Electromechanical CONTACTOR_AC_3RT2025-1AL20_7.5kW_230V

Datasheet

3In Stock

$237.57

$211.61

$202.04

$195.08

Min.: 1
Mult.: 1

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

3RT20251AN20
Siemens
1: $208.66
3In Stock

Mfr. Part #
3RT20251AN20

Mouser Part #
982-3RT20251AN20

Siemens

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

Datasheet

3In Stock

$208.66

Min.: 1
Mult.: 1

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

3RT20251AP00
Siemens
1: $176.72
4In Stock

Mfr. Part #
3RT20251AP00

Mouser Part #
982-3RT20251AP00

Siemens

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

Datasheet

4In Stock

$176.72

Quote

Min.: 1
Mult.: 1

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

3RT20251AP60
Siemens
1: $237.54
4In Stock

Mfr. Part #
3RT20251AP60

Mouser Part #
982-3RT20251AP60

Siemens

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

Datasheet

4In Stock

$237.54

$211.61

$202.04

$195.08

Min.: 1
Mult.: 1

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

3RT20251AV60
Siemens
1: $249.81
6In Stock

Mfr. Part #
3RT20251AV60

Mouser Part #
982-3RT20251AV60

Siemens

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

Datasheet

6In Stock

$249.81

$222.60

$212.52

$205.20

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR AC 7.5kW 24V SZ S0

3RT20251BB40
Siemens
1: $301.48
6In Stock
10Expected 2026-03-23

Mfr. Part #
3RT20251BB40

Mouser Part #
982-3RT20251BB40

Siemens

Contactors - Electromechanical CONTACTOR AC 7.5kW 24V SZ S0

Datasheet

6In Stock

10Expected 2026-03-23

$301.48

Min.: 1
Mult.: 1

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

3RT20251BB44
Siemens
1: $458.44
3In Stock

Mfr. Part #
3RT20251BB44

Mouser Part #
982-3RT20251BB44

Siemens

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

Datasheet

3In Stock

$458.44

$408.36

$389.89

Min.: 1
Mult.: 1

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

3RT20251FB40
Siemens
1: $477.04
4In Stock

Mfr. Part #
3RT20251FB40

Mouser Part #
982-3RT20251FB40

Siemens

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

Datasheet

4In Stock

$477.04

$424.86

$405.64

Min.: 1
Mult.: 1

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

3RT20251KB40
Siemens
1: $462.40
3In Stock

Mfr. Part #
3RT20251KB40

Mouser Part #
982-3RT20251KB40

Siemens

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

Datasheet

3In Stock

$462.40

Min.: 1
Mult.: 1

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

3RT20252KB40
Siemens
1: $439.16
2In Stock

Mfr. Part #
3RT20252KB40

Mouser Part #
982-3RT20252KB40

Siemens

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

Datasheet

2In Stock

$439.16

$391.08

$373.40

Min.: 1
Mult.: 1

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

3RT20261AB00
Siemens
1: $323.89
2In Stock

Mfr. Part #
3RT20261AB00

Mouser Part #
982-3RT20261AB00

Siemens

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

Datasheet

2In Stock

$323.89

$323.72

Min.: 1
Mult.: 1

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

3RT20261AF00
Siemens
1: $301.85
6In Stock

Mfr. Part #
3RT20261AF00

Mouser Part #
982-3RT20261AF00

Siemens

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

Datasheet

6In Stock

$301.85

$273.81

$261.42

$252.42

Min.: 1
Mult.: 1

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

3RT20261AG20
Siemens
1: $307.37
2In Stock

Mfr. Part #
3RT20261AG20

Mouser Part #
982-3RT20261AG20

Siemens

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

Datasheet

2In Stock

$307.37

$273.81

$261.42

$252.42

Min.: 1
Mult.: 1

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

3RT20261AG60
Siemens
1: $338.30
2In Stock

Mfr. Part #
3RT20261AG60

Mouser Part #
982-3RT20261AG60

Siemens

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

Datasheet

2In Stock

$338.30

Quote

Min.: 1
Mult.: 1

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

3RT20261AK60
Siemens
1: $307.38
6In Stock

Mfr. Part #
3RT20261AK60

Mouser Part #
982-3RT20261AK60

Siemens

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

Datasheet

6In Stock

$307.38

$273.67

$261.28

$252.42

Min.: 1
Mult.: 1

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

3RT20261AL20
Siemens
1: $307.37
4In Stock
4Expected 2026-03-13

Mfr. Part #
3RT20261AL20

Mouser Part #
982-3RT20261AL20

Siemens

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

Datasheet

4In Stock

4Expected 2026-03-13

$307.37

$273.81

$261.42

$252.42

Min.: 1
Mult.: 1