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 #

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

3RH29111HA13
Siemens
1: $73.58
3In Stock

Mfr. Part No.
3RH29111HA13

Mouser Part No
982-3RH29111HA13

Siemens

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

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Datasheet

3In Stock

$73.58

$72.24

$62.56

$60.41

$58.33

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 2NO FOR S0 SCREW

3RH29111HA20
Siemens
1: $45.46
8In Stock

Mfr. Part No.
3RH29111HA20

Mouser Part No
982-3RH29111HA20

Siemens

Auxiliary Contacts AUX. SWITCH 2NO FOR S0 SCREW

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Datasheet

8In Stock

$45.46

$45.12

$38.66

$37.33

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Min.: 1
Mult.: 1

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

3RH29111HA31
Siemens
1: $73.58
18In Stock

Mfr. Part No.
3RH29111HA31

Mouser Part No
982-3RH29111HA31

Siemens

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

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Datasheet

18In Stock

$73.58

$72.24

$67.44

$60.41

$58.33

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 1NO+1NC WIRE TOP SCREW

3RH29111LA11
Siemens
1: $50.16
5In Stock

Mfr. Part No.
3RH29111LA11

Mouser Part No
982-3RH29111LA11

Siemens

Auxiliary Contacts AUX. SWITCH 1NO+1NC WIRE TOP SCREW

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Datasheet

5In Stock

$50.16

$49.95

$42.65

$41.18

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Min.: 1
Mult.: 1

Auxiliary Contacts AUXILIARY SWITCH 1NO+1NC

3RH29111MA11
Siemens
1: $50.16
8In Stock

Mfr. Part No.
3RH29111MA11

Mouser Part No
982-3RH29111MA11

Siemens

Auxiliary Contacts AUXILIARY SWITCH 1NO+1NC

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Datasheet

8In Stock

$50.16

$49.79

$42.65

$41.18

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Min.: 1
Mult.: 1

Auxiliary Contacts SOLID-STATE COMP. AUX. SW.BL.. 2NO+2NC

3RH29111NE22
Siemens
1: $195.74
10In Stock

Mfr. Part No.
3RH29111NE22

Mouser Part No
982-3RH29111NE22

Siemens

Auxiliary Contacts SOLID-STATE COMP. AUX. SW.BL.. 2NO+2NC

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Datasheet

10In Stock

$195.74

$195.72

$166.41

$160.68

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 2NC FOR S00 & S0 SCREW

3RH29111NF02
Siemens
1: $156.75
5In Stock

Mfr. Part No.
3RH29111NF02

Mouser Part No
982-3RH29111NF02

Siemens

Auxiliary Contacts AUX. SWITCH 2NC FOR S00 & S0 SCREW

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Datasheet

5In Stock

$156.75

$149.06

$144.42

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Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 1NO+1NC FOR S00 & S0 SCREW

3RH29111NF11
Siemens
1: $156.18
6In Stock

Mfr. Part No.
3RH29111NF11

Mouser Part No
982-3RH29111NF11

Siemens

Auxiliary Contacts AUX. SWITCH 1NO+1NC FOR S00 & S0 SCREW

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Datasheet

6In Stock

$156.18

$140.96

$134.60

$129.96

$125.49

Min.: 1
Mult.: 1

Auxiliary Contacts ACC CONTACTOR

3RH29112FA22
Siemens
1: $75.64
5In Stock

Mfr. Part No.
3RH29112FA22

Mouser Part No
982-3RH29112FA22

Siemens

Auxiliary Contacts ACC CONTACTOR

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Datasheet

5In Stock

$75.64

$73.32

$64.33

$62.11

$59.98

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 4NO FOR S00 & S0 SPRNG

3RH29112FA40
Siemens
1: $75.64
7In Stock

Mfr. Part No.
3RH29112FA40

Mouser Part No
982-3RH29112FA40

Siemens

Auxiliary Contacts AUX. SWITCH 4NO FOR S00 & S0 SPRNG

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Datasheet

7In Stock

$75.64

$73.32

$64.33

$62.11

$59.98

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 4NC FOR S00 SPRING

3RH29112GA04
Siemens
1: $74.54
5In Stock

Mfr. Part No.
3RH29112GA04

Mouser Part No
982-3RH29112GA04

Siemens

Auxiliary Contacts AUX. SWITCH 4NC FOR S00 SPRING

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Datasheet

5In Stock

$74.54

$67.36

$64.33

$62.11

$59.98

Min.: 1
Mult.: 1

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

3RH29112GA22
Siemens
1: $75.64
6In Stock

Mfr. Part No.
3RH29112GA22

Mouser Part No
982-3RH29112GA22

Siemens

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

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Datasheet

6In Stock

$75.64

$74.13

$64.33

$62.11

$59.98

Min.: 1
Mult.: 1

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

3RH29112GA31
Siemens
1: $75.64
5In Stock

Mfr. Part No.
3RH29112GA31

Mouser Part No
982-3RH29112GA31

Siemens

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

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Datasheet

5In Stock

$75.64

$75.21

$64.33

$62.11

$59.98

Min.: 1
Mult.: 1

Auxiliary Contacts CONTACTOR_AUX_AC

3RH29112HA11
Siemens
1: $46.32
7In Stock

Mfr. Part No.
3RH29112HA11

Mouser Part No
982-3RH29112HA11

Siemens

Auxiliary Contacts CONTACTOR_AUX_AC

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Datasheet

7In Stock

$46.32

$46.01

$39.40

$38.04

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Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 1NO+2NC FOR S00 & S0 SPRNG

3RH29112HA12
Siemens
1: $62.76
5In Stock

Mfr. Part No.
3RH29112HA12

Mouser Part No
982-3RH29112HA12

Siemens

Auxiliary Contacts AUX. SWITCH 1NO+2NC FOR S00 & S0 SPRNG

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Datasheet

5In Stock

$62.76

$62.75

$53.37

$51.53

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Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH 2NO FOR S0 SPRING

3RH29112HA20
Siemens
1: $46.32
6In Stock

Mfr. Part No.
3RH29112HA20

Mouser Part No
982-3RH29112HA20

Siemens

Auxiliary Contacts AUX. SWITCH 2NO FOR S0 SPRING

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Datasheet

6In Stock

$46.32

$46.01

$39.40

$37.24

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Min.: 1
Mult.: 1

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

3RH29112HA22
Siemens
1: $75.64
4In Stock

Mfr. Part No.
3RH29112HA22

Mouser Part No
982-3RH29112HA22

Siemens

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

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Datasheet

4In Stock

$75.64

$64.33

$62.11

$59.98

Min.: 1
Mult.: 1

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

3RH29112XA220MA0
Siemens
1: $73.58
16In Stock

Mfr. Part No.
3RH29112XA220MA0

Mouser Part No
982-3RH29112XA220MA0

Siemens

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

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Datasheet

16In Stock

$73.58

$62.56

$60.41

$58.33

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH LATERAL 2NC S0 SCREW

3RH29211DA02
Siemens
1: $68.20
8In Stock

Mfr. Part No.
3RH29211DA02

Mouser Part No
982-3RH29211DA02

Siemens

Auxiliary Contacts AUX. SWITCH LATERAL 2NC S0 SCREW

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Datasheet

8In Stock

$68.20

$65.65

$57.99

$55.99

View

Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH LATERAL 1NO+1NC S0 SCREW

3RH29211DA11
Siemens
1: $68.20
25In Stock

Mfr. Part No.
3RH29211DA11

Mouser Part No
982-3RH29211DA11

Siemens

Auxiliary Contacts AUX. SWITCH LATERAL 1NO+1NC S0 SCREW

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Datasheet

25In Stock

$68.20

$66.78

$57.99

$55.99

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Min.: 1
Mult.: 1

Auxiliary Contacts AUX. SWITCH LATERAL 2NO S0 SCREW

3RH29211DA20
Siemens
1: $68.20
5In Stock

Mfr. Part No.
3RH29211DA20

Mouser Part No
982-3RH29211DA20

Siemens

Auxiliary Contacts AUX. SWITCH LATERAL 2NO S0 SCREW

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Datasheet

5In Stock

$68.20

$65.65

$57.99

$55.99

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Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 24V SCREW

3RH21311AB00
Siemens
1: $173.28
10On Order

Mfr. Part No.
3RH21311AB00

Mouser Part No
982-3RH21311AB00

Siemens

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 24V SCREW

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Datasheet

10On Order

$173.28

$156.56

$149.49

$144.34

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTROL RELAY 4NO+4NC DC 125V RING LUG

3RH22444BG40
Siemens
1: $363.36
3Expected 11/9/2026

Mfr. Part No.
3RH22444BG40

Mouser Part No
982-3RH22444BG40

Siemens

Contactors - Electromechanical CONTROL RELAY 4NO+4NC DC 125V RING LUG

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Datasheet

3Expected 11/9/2026

$363.36

$323.52

$308.88

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC DC 24V SCREW

3RH21221BB40
Siemens
1: $198.74
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
3RH21221BB40

Mouser Part No
982-3RH21221BB40

Siemens

Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC DC 24V SCREW

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Datasheet

Non-Stocked Lead-Time 6 Weeks

$198.74

$178.79

$170.71

$164.83

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 125V SCREW

3RH21311BG40
Siemens
1: $216.08
Lead-Time 5 Weeks

Mfr. Part No.
3RH21311BG40

Mouser Part No
982-3RH21311BG40

Siemens

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 125V SCREW

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Datasheet

Lead-Time 5 Weeks

$216.08

$197.72

$188.77

$182.28

Min.: 1
Mult.: 1

SIRIUS 3RH2 4- & 8-Pole Contactor Relays

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