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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 #

Control Switches AUX. SWITCH 3NO+1NC FOR S00 SPRING

3RH29112HA31
Siemens
1: 210,10 RON
384In Stock

Mfr. Part No.
3RH29112HA31

Mouser Part No
982-3RH29112HA31

Siemens

Control Switches AUX. SWITCH 3NO+1NC FOR S00 SPRING

Datasheet

384In Stock

210,10 RON

192,15 RON

183,49 RON

177,21 RON

View

Min.: 1
Mult.: 1

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

3RH21221BB40
Siemens
1: 561,95 RON
19In Stock

Mfr. Part No.
3RH21221BB40

Mouser Part No
982-3RH21221BB40

Siemens

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

Datasheet

19In Stock

561,95 RON

500,38 RON

477,75 RON

461,45 RON

Min.: 1
Mult.: 1

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

3RH21311BB40
Siemens
1: 562,00 RON
28In Stock

Mfr. Part No.
3RH21311BB40

Mouser Part No
982-3RH21311BB40

Siemens

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

Datasheet

28In Stock

562,00 RON

500,38 RON

477,75 RON

461,45 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 24V SPRING

3RH21312BB40
Siemens
1: 561,90 RON
22In Stock

Mfr. Part No.
3RH21312BB40

Mouser Part No
982-3RH21312BB40

Siemens

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 24V SPRING

Datasheet

22In Stock

561,90 RON

500,33 RON

477,85 RON

461,45 RON

Min.: 1
Mult.: 1

Control Switches AUX. SWITCH 1NO+1NC FOR S00 & S0 SCREW

3RH29111HA11
Siemens
1: 127,11 RON
67In Stock
55Expected 7/15/2026

Mfr. Part No.
3RH29111HA11

Mouser Part No
982-3RH29111HA11

Siemens

Control Switches AUX. SWITCH 1NO+1NC FOR S00 & S0 SCREW

Datasheet

67In Stock

55Expected 7/15/2026

127,11 RON

113,18 RON

108,04 RON

104,32 RON

View

Min.: 1
Mult.: 1

Control Switches AUX. SWITCH 2NO+2NC FOR S00 & S0 SCREW

3RH29111HA22
Siemens
1: 206,48 RON
41In Stock
28Expected 4/27/2026

Mfr. Part No.
3RH29111HA22

Mouser Part No
982-3RH29111HA22

Siemens

Control Switches AUX. SWITCH 2NO+2NC FOR S00 & S0 SCREW

Datasheet

41In Stock

28Expected 4/27/2026

206,48 RON

183,54 RON

175,09 RON

169,51 RON

View

Min.: 1
Mult.: 1

Control Switches AUX. SWITCH 2NO+2NC FOR S00 & S0 SCREW

3RH29111XA220MA0
Siemens
1: 205,02 RON
73In Stock

Mfr. Part No.
3RH29111XA220MA0

Mouser Part No
982-3RH29111XA220MA0

Siemens

Control Switches AUX. SWITCH 2NO+2NC FOR S00 & S0 SCREW

Datasheet

73In Stock

205,02 RON

183,24 RON

174,89 RON

169,51 RON

View

Min.: 1
Mult.: 1

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

3RH21221AB00
Siemens
1: 361,96 RON
8In Stock

Mfr. Part No.
3RH21221AB00

Mouser Part No
982-3RH21221AB00

Siemens

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

Datasheet

8In Stock

361,96 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 110V SCREW

3RH21221AF00
Siemens
1: 491,98 RON
1In Stock

Mfr. Part No.
3RH21221AF00

Mouser Part No
982-3RH21221AF00

Siemens

Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 110V SCREW

Datasheet

1In Stock

491,98 RON

438,41 RON

418,60 RON

404,21 RON

390,33 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 240V SCREW

3RH21221AP60
Siemens
1: 506,07 RON
5In Stock

Mfr. Part No.
3RH21221AP60

Mouser Part No
982-3RH21221AP60

Siemens

Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 240V SCREW

Datasheet

5In Stock

506,07 RON

483,68 RON

467,69 RON

452,20 RON

View

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC DC 110V SCREW

3RH21221BF40
Siemens
1: 555,11 RON
6In Stock

Mfr. Part No.
3RH21221BF40

Mouser Part No
982-3RH21221BF40

Siemens

Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC DC 110V SCREW

Datasheet

6In Stock

555,11 RON

500,49 RON

477,85 RON

461,45 RON

Min.: 1
Mult.: 1

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

3RH21222BB40
Siemens
1: 562,00 RON
13In Stock

Mfr. Part No.
3RH21222BB40

Mouser Part No
982-3RH21222BB40

Siemens

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

Datasheet

13In Stock

562,00 RON

500,38 RON

477,75 RON

461,45 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical COUPLING RELAY 2NO+2NC DC 24V SPRING

3RH21222HB40
Siemens
1: 496,41 RON
3In Stock

Mfr. Part No.
3RH21222HB40

Mouser Part No
982-3RH21222HB40

Siemens

Contactors - Electromechanical COUPLING RELAY 2NO+2NC DC 24V SPRING

Datasheet

3In Stock

496,41 RON

441,99 RON

422,02 RON

416,79 RON

Min.: 1
Mult.: 1

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

3RH21311AB00
Siemens
1: 492,08 RON
4In Stock
2Expected 8/17/2026

Mfr. Part No.
3RH21311AB00

Mouser Part No
982-3RH21311AB00

Siemens

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

Datasheet

4In Stock

2Expected 8/17/2026

492,08 RON

438,41 RON

418,60 RON

404,21 RON

390,33 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SCREW

3RH21311AF00
Siemens
1: 492,19 RON
6In Stock

Mfr. Part No.
3RH21311AF00

Mouser Part No
982-3RH21311AF00

Siemens

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SCREW

Datasheet

6In Stock

492,19 RON

477,90 RON

418,60 RON

404,21 RON

390,33 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SCREW

3RH21311AK60
Siemens
1: 492,03 RON
8In Stock

Mfr. Part No.
3RH21311AK60

Mouser Part No
982-3RH21311AK60

Siemens

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SCREW

Datasheet

8In Stock

492,03 RON

438,41 RON

418,60 RON

404,21 RON

390,33 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 220V SCREW

3RH21311AN20
Siemens
1: 381,27 RON
5In Stock

Mfr. Part No.
3RH21311AN20

Mouser Part No
982-3RH21311AN20

Siemens

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 220V SCREW

Datasheet

5In Stock

381,27 RON

Quote

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 230V SCREW

3RH21311AP00
Siemens
1: 492,39 RON
7In Stock

Mfr. Part No.
3RH21311AP00

Mouser Part No
982-3RH21311AP00

Siemens

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 230V SCREW

Datasheet

7In Stock

492,39 RON

438,41 RON

418,60 RON

404,21 RON

390,33 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 240V SCREW

3RH21311AP60
Siemens
1: 412,01 RON
5In Stock

Mfr. Part No.
3RH21311AP60

Mouser Part No
982-3RH21311AP60

Siemens

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 240V SCREW

Datasheet

5In Stock

412,01 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical COUPLING RELAY 3NO+1NC DC 24V SCREW

3RH21311JB40
Siemens
1: 556,32 RON
2In Stock

Mfr. Part No.
3RH21311JB40

Mouser Part No
982-3RH21311JB40

Siemens

Contactors - Electromechanical COUPLING RELAY 3NO+1NC DC 24V SCREW

Datasheet

2In Stock

556,32 RON

495,51 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SPRING

3RH21312AF00
Siemens
1: 424,18 RON
3In Stock

Mfr. Part No.
3RH21312AF00

Mouser Part No
982-3RH21312AF00

Siemens

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SPRING

Datasheet

3In Stock

424,18 RON

377,75 RON

361,96 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 24V SPRING

3RH21312JB40
Siemens
1: 645,45 RON
5In Stock

Mfr. Part No.
3RH21312JB40

Mouser Part No
982-3RH21312JB40

Siemens

Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 24V SPRING

Datasheet

5In Stock

645,45 RON

575,03 RON

549,02 RON

530,11 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 24V SCREW

3RH21401AB00
Siemens
1: 492,08 RON
4In Stock

Mfr. Part No.
3RH21401AB00

Mouser Part No
982-3RH21401AB00

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 24V SCREW

Datasheet

4In Stock

492,08 RON

438,41 RON

418,60 RON

404,21 RON

390,33 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 110V SCREW

3RH21401AF00
Siemens
1: 492,24 RON
5In Stock

Mfr. Part No.
3RH21401AF00

Mouser Part No
982-3RH21401AF00

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 110V SCREW

Datasheet

5In Stock

492,24 RON

438,31 RON

418,60 RON

404,21 RON

390,33 RON

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 120V SCREW

3RH21401AK60
Siemens
1: 492,19 RON
8In Stock

Mfr. Part No.
3RH21401AK60

Mouser Part No
982-3RH21401AK60

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 120V SCREW

Datasheet

8In Stock

492,19 RON

438,41 RON

418,60 RON

404,21 RON

390,33 RON

Min.: 1
Mult.: 1