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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 220VAC 1NO/1NC SCRW

3RT20241AN20
Siemens
1: $116.64
5In Stock

Mfr. Part No.
3RT20241AN20

Mouser Part No
982-3RT20241AN20

Siemens

Contactors - Electromechanical CONTACTOR S0 12A 220VAC 1NO/1NC SCRW

Datasheet

5In Stock

$116.64

$103.86

$99.17

$95.76

$92.46

Min.: 1
Mult.: 1

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

3RT20241AP60
Siemens
1: $116.60
5In Stock

Mfr. Part No.
3RT20241AP60

Mouser Part No
982-3RT20241AP60

Siemens

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

Datasheet

5In Stock

$116.60

$103.86

$99.17

$95.76

$92.46

Min.: 1
Mult.: 1

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

3RT20241BB443MA0
Siemens
1: $228.37
5In Stock

Mfr. Part No.
3RT20241BB443MA0

Mouser Part No
982-3RT20241BB443MA0

Siemens

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

Datasheet

5In Stock

$228.37

Min.: 1
Mult.: 1

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

3RT20241BF40
Siemens
1: $223.30
3In Stock

Mfr. Part No.
3RT20241BF40

Mouser Part No
982-3RT20241BF40

Siemens

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

Datasheet

3In Stock

$223.30

$222.31

$220.89

$219.99

View

Min.: 1
Mult.: 1

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

3RT20242BB40
Siemens
1: $198.30
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

$198.30

$197.46

$190.66

Min.: 1
Mult.: 1

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

3RT20242FB40
Siemens
1: $281.13
3In Stock

Mfr. Part No.
3RT20242FB40

Mouser Part No
982-3RT20242FB40

Siemens

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

Datasheet

3In Stock

$281.13

$281.04

Min.: 1
Mult.: 1

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

3RT20251AB00
Siemens
1: $160.16
5In Stock

Mfr. Part No.
3RT20251AB00

Mouser Part No
982-3RT20251AB00

Siemens

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

Datasheet

5In Stock

$160.16

$143.71

$137.21

$132.49

Min.: 1
Mult.: 1

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

3RT20251AC20
Siemens
1: $153.28
5In Stock

Mfr. Part No.
3RT20251AC20

Mouser Part No
982-3RT20251AC20

Siemens

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

Datasheet

5In Stock

$153.28

$136.48

$130.31

$125.86

Min.: 1
Mult.: 1

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

3RT20251AF00
Siemens
1: $153.25
3In Stock

Mfr. Part No.
3RT20251AF00

Mouser Part No
982-3RT20251AF00

Siemens

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

Datasheet

3In Stock

$153.25

$136.52

$130.35

$125.86

Min.: 1
Mult.: 1

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

3RT20251AG20
Siemens
1: $110.68
5In Stock

Mfr. Part No.
3RT20251AG20

Mouser Part No
982-3RT20251AG20

Siemens

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

Datasheet

5In Stock

$110.68

Quote

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR_AC_3RT2025-1AL20_7.5kW_230V

3RT20251AL20
Siemens
1: $153.27
3In Stock

Mfr. Part No.
3RT20251AL20

Mouser Part No
982-3RT20251AL20

Siemens

Contactors - Electromechanical CONTACTOR_AC_3RT2025-1AL20_7.5kW_230V

Datasheet

3In Stock

$153.27

$136.52

$130.35

$125.86

Min.: 1
Mult.: 1

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

3RT20251AN20
Siemens
1: $134.62
3In Stock

Mfr. Part No.
3RT20251AN20

Mouser Part No
982-3RT20251AN20

Siemens

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

Datasheet

3In Stock

$134.62

Min.: 1
Mult.: 1

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

3RT20251AP00
Siemens
1: $114.01
4In Stock

Mfr. Part No.
3RT20251AP00

Mouser Part No
982-3RT20251AP00

Siemens

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

Datasheet

4In Stock

$114.01

Quote

Min.: 1
Mult.: 1

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

3RT20251AP60
Siemens
1: $153.25
4In Stock

Mfr. Part No.
3RT20251AP60

Mouser Part No
982-3RT20251AP60

Siemens

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

Datasheet

4In Stock

$153.25

$136.52

$130.35

$125.86

Min.: 1
Mult.: 1

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

3RT20251AV60
Siemens
1: $161.17
6In Stock

Mfr. Part No.
3RT20251AV60

Mouser Part No
982-3RT20251AV60

Siemens

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

Datasheet

6In Stock

$161.17

$143.61

$137.11

$132.39

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR AC 7.5kW 24V SZ S0

3RT20251BB40
Siemens
1: $194.50
5In Stock
10Expected 20/03/2026

Mfr. Part No.
3RT20251BB40

Mouser Part No
982-3RT20251BB40

Siemens

Contactors - Electromechanical CONTACTOR AC 7.5kW 24V SZ S0

Datasheet

5In Stock

10Expected 20/03/2026

$194.50

Min.: 1
Mult.: 1

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

3RT20251BB44
Siemens
1: $295.77
3In Stock

Mfr. Part No.
3RT20251BB44

Mouser Part No
982-3RT20251BB44

Siemens

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

Datasheet

3In Stock

$295.77

$263.46

$251.54

Min.: 1
Mult.: 1

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

3RT20251FB40
Siemens
1: $307.77
4In Stock

Mfr. Part No.
3RT20251FB40

Mouser Part No
982-3RT20251FB40

Siemens

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

Datasheet

4In Stock

$307.77

$274.10

$261.70

Min.: 1
Mult.: 1

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

3RT20251KB40
Siemens
1: $298.32
3In Stock

Mfr. Part No.
3RT20251KB40

Mouser Part No
982-3RT20251KB40

Siemens

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

Datasheet

3In Stock

$298.32

Min.: 1
Mult.: 1

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

3RT20252KB40
Siemens
1: $283.33
2In Stock

Mfr. Part No.
3RT20252KB40

Mouser Part No
982-3RT20252KB40

Siemens

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

Datasheet

2In Stock

$283.33

$252.31

$240.90

Min.: 1
Mult.: 1

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

3RT20261AB00
Siemens
1: $208.96
2In Stock

Mfr. Part No.
3RT20261AB00

Mouser Part No
982-3RT20261AB00

Siemens

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

Datasheet

2In Stock

$208.96

$208.85

Min.: 1
Mult.: 1

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

3RT20261AF00
Siemens
1: $194.74
6In Stock

Mfr. Part No.
3RT20261AF00

Mouser Part No
982-3RT20261AF00

Siemens

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

Datasheet

6In Stock

$194.74

$176.65

$168.66

$162.85

Min.: 1
Mult.: 1

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

3RT20261AG20
Siemens
1: $198.30
2In Stock

Mfr. Part No.
3RT20261AG20

Mouser Part No
982-3RT20261AG20

Siemens

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

Datasheet

2In Stock

$198.30

$176.65

$168.66

$162.85

Min.: 1
Mult.: 1

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

3RT20261AG60
Siemens
1: $218.26
2In Stock

Mfr. Part No.
3RT20261AG60

Mouser Part No
982-3RT20261AG60

Siemens

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

Datasheet

2In Stock

$218.26

Quote

Min.: 1
Mult.: 1

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

3RT20261AK60
Siemens
1: $198.31
3In Stock
7Expected 27/04/2026

Mfr. Part No.
3RT20261AK60

Mouser Part No
982-3RT20261AK60

Siemens

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

Datasheet

3In Stock

7Expected 27/04/2026

$198.31

$176.56

$168.57

$162.85

Min.: 1
Mult.: 1