Contactors & Relays – Mouser Singapore

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SIRIUS 3RH2 4- & 8-Pole Contactor Relays

Siemens SIRIUS 3RH2 4- and 8-Pole Contactor Relays are available with screw or spring-loaded terminals. The basic unit contains four contacts with terminal designations according to EN 50011. Siemens 3RH2 Contactor Relays feature high contact stability at low voltages and currents. This performance is suitable for solid-state circuits with currents ≥1mA at a voltage of ≥17V. 3RH21 Coupling Contactor Relays for Switching Auxiliary Circuits are tailored to the special requirements of working with electronic controls.

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Part #

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 120V SCREW

3RH21401AK60
Siemens
1: $174.94
8In Stock

Mfr. Part No.
3RH21401AK60

Mouser Part No
982-3RH21401AK60

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 120V SCREW

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Datasheet

8In Stock

$174.94

$156.56

$149.49

$144.34

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR_AUX_3RH2140-1AP00_230V

3RH21401AP00
Siemens
1: $175.66
5In Stock

Mfr. Part No.
3RH21401AP00

Mouser Part No
982-3RH21401AP00

Siemens

Contactors - Electromechanical CONTACTOR_AUX_3RH2140-1AP00_230V

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Datasheet

5In Stock

$175.66

$156.56

$149.49

$144.34

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 240V SCREW

3RH21401AP60
Siemens
1: $173.28
6In Stock

Mfr. Part No.
3RH21401AP60

Mouser Part No
982-3RH21401AP60

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 240V SCREW

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Datasheet

6In Stock

$173.28

$156.56

$149.49

$144.34

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO DC 24V SCREW

3RH21401BB40
Siemens
1: $198.74
11In Stock

Mfr. Part No.
3RH21401BB40

Mouser Part No
982-3RH21401BB40

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO DC 24V SCREW

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Datasheet

11In Stock

$198.74

$178.79

$170.71

$164.83

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO DC 24V SPRING

3RH21402BB40
Siemens
1: $198.74
1In Stock
4Expected 14/8/2026

Mfr. Part No.
3RH21402BB40

Mouser Part No
982-3RH21402BB40

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO DC 24V SPRING

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Datasheet

1In Stock

4Expected 14/8/2026

$198.74

$178.79

$170.71

$164.83

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO+4NC 24V S00 SCREW

3RH22441BB40
Siemens
1: $293.35
3In Stock

Mfr. Part No.
3RH22441BB40

Mouser Part No
982-3RH22441BB40

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO+4NC 24V S00 SCREW

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Datasheet

3In Stock

$293.35

$267.68

$255.57

$246.77

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO+4NC DC 24V SPRING

3RH22442BB40
Siemens
1: $295.76
5In Stock

Mfr. Part No.
3RH22442BB40

Mouser Part No
982-3RH22442BB40

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO+4NC DC 24V SPRING

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Datasheet

5In Stock

$295.76

$263.28

$255.57

$246.77

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTROL RELAY 6NO+2NC AC 120V SCREW

3RH22621AK60
Siemens
1: $269.63
2In Stock

Mfr. Part No.
3RH22621AK60

Mouser Part No
982-3RH22621AK60

Siemens

Contactors - Electromechanical CONTROL RELAY 6NO+2NC AC 120V SCREW

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Datasheet

2In Stock

$269.63

$248.39

$237.16

$229.00

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 6NO+2NC, 24VDC, SZ S00

3RH22621BB40
Siemens
1: $293.35
4In Stock

Mfr. Part No.
3RH22621BB40

Mouser Part No
982-3RH22621BB40

Siemens

Contactors - Electromechanical CONTACTOR RELAY 6NO+2NC, 24VDC, SZ S00

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Datasheet

4In Stock

$293.35

$261.19

$249.37

$246.77

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTROL RELAY 7NO+1NC AC 120V SCREW

3RH22711AK60
Siemens
1: $273.29
5In Stock

Mfr. Part No.
3RH22711AK60

Mouser Part No
982-3RH22711AK60

Siemens

Contactors - Electromechanical CONTROL RELAY 7NO+1NC AC 120V SCREW

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Datasheet

5In Stock

$273.29

$243.33

$238.64

$230.42

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTROL RELAY 7NO+1NC DC 24V SCREW

3RH22711BB40
Siemens
1: $293.35
6In Stock

Mfr. Part No.
3RH22711BB40

Mouser Part No
982-3RH22711BB40

Siemens

Contactors - Electromechanical CONTROL RELAY 7NO+1NC DC 24V SCREW

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Datasheet

6In Stock

$293.35

$261.19

$249.37

$246.77

Min.: 1
Mult.: 1

Auxiliary Contacts AUXILIARY SWITCH 1NC WIRE TOP SCREW

3RH29111AA01
Siemens
1: $34.63
3In Stock

Mfr. Part No.
3RH29111AA01

Mouser Part No
982-3RH29111AA01

Siemens

Auxiliary Contacts AUXILIARY SWITCH 1NC WIRE TOP SCREW

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Datasheet

3In Stock

$34.63

$31.84

$30.41

$29.36

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Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 1NO WIRE TOP SCREW

3RH29111AA10
Siemens
1: $34.35
5In Stock

Mfr. Part No.
3RH29111AA10

Mouser Part No
982-3RH29111AA10

Siemens

Auxiliary Contacts AUX. SWITCH 1NO WIRE TOP SCREW

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Datasheet

5In Stock

$34.35

$31.84

$30.41

$29.36

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Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH LATERAL 1NO+1NC S00 SCREW

3RH29111DA11
Siemens
1: $66.52
6In Stock

Mfr. Part No.
3RH29111DA11

Mouser Part No
982-3RH29111DA11

Siemens

Auxiliary Contacts AUX. SWITCH LATERAL 1NO+1NC S00 SCREW

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Datasheet

6In Stock

$66.52

$66.37

$56.56

$54.62

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Min.: 1
Mult.: 1

Auxiliary Contacts AUXILIARY SWITCH 2NO+2NC S00 & S0 SCREW

3RH29111FA22
Siemens
1: $73.58
34In Stock

Mfr. Part No.
3RH29111FA22

Mouser Part No
982-3RH29111FA22

Siemens

Auxiliary Contacts AUXILIARY SWITCH 2NO+2NC S00 & S0 SCREW

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Datasheet

34In Stock

$73.58

$62.56

$58.33

Min.: 1
Mult.: 1

Auxiliary Contacts AUXILIARY SWITCH 4NO, S00 & S0 SCREW

3RH29111FA40
Siemens
1: $73.58
12In Stock

Mfr. Part No.
3RH29111FA40

Mouser Part No
982-3RH29111FA40

Siemens

Auxiliary Contacts AUXILIARY SWITCH 4NO, S00 & S0 SCREW

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Datasheet

12In Stock

$73.58

$72.31

$62.56

$59.50

$58.33

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 2NO+2NC S00 & S0 SCREW

3RH29111FC22
Siemens
1: $114.42
3In Stock

Mfr. Part No.
3RH29111FC22

Mouser Part No
982-3RH29111FC22

Siemens

Auxiliary Contacts AUX. SWITCH 2NO+2NC S00 & S0 SCREW

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Datasheet

3In Stock

$114.42

$102.07

$97.44

$94.14

$90.90

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 4NC FOR S00 SCREW

3RH29111GA04
Siemens
1: $73.58
13In Stock

Mfr. Part No.
3RH29111GA04

Mouser Part No
982-3RH29111GA04

Siemens

Auxiliary Contacts AUX. SWITCH 4NC FOR S00 SCREW

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Datasheet

13In Stock

$73.58

$71.18

$67.44

$60.41

$58.33

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 1NO+3NC FOR S00 SCREW

3RH29111GA13
Siemens
1: $73.58
5In Stock

Mfr. Part No.
3RH29111GA13

Mouser Part No
982-3RH29111GA13

Siemens

Auxiliary Contacts AUX. SWITCH 1NO+3NC FOR S00 SCREW

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Datasheet

5In Stock

$73.58

$72.24

$62.56

$60.41

$58.33

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 2NO+2NC FOR S00 SCREW

3RH29111GA22
Siemens
1: $73.58
10In Stock

Mfr. Part No.
3RH29111GA22

Mouser Part No
982-3RH29111GA22

Siemens

Auxiliary Contacts AUX. SWITCH 2NO+2NC FOR S00 SCREW

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Datasheet

10In Stock

$73.58

$72.24

$67.44

$60.41

$58.33

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 3NO+1NC FOR S00 SCREW

3RH29111GA31
Siemens
1: $73.58
3In Stock

Mfr. Part No.
3RH29111GA31

Mouser Part No
982-3RH29111GA31

Siemens

Auxiliary Contacts AUX. SWITCH 3NO+1NC FOR S00 SCREW

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Datasheet

3In Stock

$73.58

$62.56

$60.41

$58.33

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 4NO FOR S00 SCREW

3RH29111GA40
Siemens
1: $73.58
13In Stock

Mfr. Part No.
3RH29111GA40

Mouser Part No
982-3RH29111GA40

Siemens

Auxiliary Contacts AUX. SWITCH 4NO FOR S00 SCREW

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Datasheet

13In Stock

$73.58

$62.56

$60.41

$58.33

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 1NC FOR S00 SCREW

3RH29111HA01
Siemens
1: $36.09
3In Stock

Mfr. Part No.
3RH29111HA01

Mouser Part No
982-3RH29111HA01

Siemens

Auxiliary Contacts AUX. SWITCH 1NC FOR S00 SCREW

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Datasheet

3In Stock

$36.09

$30.70

$29.65

$28.63

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Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 2NC FOR S00 SCREW

3RH29111HA02
Siemens
1: $45.44
9In Stock

Mfr. Part No.
3RH29111HA02

Mouser Part No
982-3RH29111HA02

Siemens

Auxiliary Contacts AUX. SWITCH 2NC FOR S00 SCREW

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Datasheet

9In Stock

$45.44

$40.47

$38.65

$37.32

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Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 1NO FOR S0 SCREW

3RH29111HA10
Siemens
1: $36.09
8In Stock

Mfr. Part No.
3RH29111HA10

Mouser Part No
982-3RH29111HA10

Siemens

Auxiliary Contacts AUX. SWITCH 1NO FOR S0 SCREW

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Datasheet

8In Stock

$36.09

$35.07

$30.70

$29.65

View

Min.: 1
Mult.: 1

SIRIUS 3RH2 4- & 8-Pole Contactor Relays

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