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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: Rp891.065
384In Stock

Mfr. Part No.
3RH29112HA31

Mouser Part No
982-3RH29112HA31

Siemens

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

Datasheet

384In Stock

Rp891.065

Rp814.929

Rp778.237

Rp751.452

View

Min.: 1
Mult.: 1

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

3RH21221BB40
Siemens
1: Rp2.383.329
19In Stock

Mfr. Part No.
3RH21221BB40

Mouser Part No
982-3RH21221BB40

Siemens

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

Datasheet

19In Stock

Rp2.383.329

Rp2.122.082

Rp2.026.132

Rp1.956.968

Min.: 1
Mult.: 1

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

3RH21311BB40
Siemens
1: Rp2.383.512
28In Stock

Mfr. Part No.
3RH21311BB40

Mouser Part No
982-3RH21311BB40

Siemens

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

Datasheet

28In Stock

Rp2.383.512

Rp2.122.082

Rp2.026.132

Rp1.956.968

Min.: 1
Mult.: 1

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

3RH21312BB40
Siemens
1: Rp2.382.962
22In Stock

Mfr. Part No.
3RH21312BB40

Mouser Part No
982-3RH21312BB40

Siemens

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

Datasheet

22In Stock

Rp2.382.962

Rp2.121.898

Rp2.026.683

Rp1.956.968

Min.: 1
Mult.: 1

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

3RH29111HA11
Siemens
1: Rp539.005
67In Stock
55Expected 15/07/2026

Mfr. Part No.
3RH29111HA11

Mouser Part No
982-3RH29111HA11

Siemens

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

Datasheet

67In Stock

55Expected 15/07/2026

Rp539.005

Rp479.931

Rp458.283

Rp442.506

View

Min.: 1
Mult.: 1

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

3RH29111HA22
Siemens
1: Rp875.655
41In Stock
28Expected 27/04/2026

Mfr. Part No.
3RH29111HA22

Mouser Part No
982-3RH29111HA22

Siemens

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

Datasheet

41In Stock

28Expected 27/04/2026

Rp875.655

Rp778.421

Rp742.646

Rp718.980

View

Min.: 1
Mult.: 1

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

3RH29111XA220MA0
Siemens
1: Rp869.417
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

Rp869.417

Rp777.137

Rp741.729

Rp718.980

View

Min.: 1
Mult.: 1

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

3RH21221AB00
Siemens
1: Rp1.534.826
8In Stock

Mfr. Part No.
3RH21221AB00

Mouser Part No
982-3RH21221AB00

Siemens

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

Datasheet

8In Stock

Rp1.534.826

Rp1.474.835

Min.: 1
Mult.: 1

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

3RH21221AF00
Siemens
1: Rp2.086.491
1In Stock

Mfr. Part No.
3RH21221AF00

Mouser Part No
982-3RH21221AF00

Siemens

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

Datasheet

1In Stock

Rp2.086.491

Rp1.859.367

Rp1.775.342

Rp1.714.250

Rp1.655.360

Min.: 1
Mult.: 1

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

3RH21221AP60
Siemens
1: Rp2.146.299
5In Stock

Mfr. Part No.
3RH21221AP60

Mouser Part No
982-3RH21221AP60

Siemens

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

Datasheet

5In Stock

Rp2.146.299

Rp2.051.266

Rp1.983.570

Rp1.917.891

View

Min.: 1
Mult.: 1

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

3RH21221BF40
Siemens
1: Rp2.354.159
6In Stock

Mfr. Part No.
3RH21221BF40

Mouser Part No
982-3RH21221BF40

Siemens

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

Datasheet

6In Stock

Rp2.354.159

Rp2.122.632

Rp2.026.683

Rp1.956.968

Min.: 1
Mult.: 1

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

3RH21222BB40
Siemens
1: Rp2.383.512
13In Stock

Mfr. Part No.
3RH21222BB40

Mouser Part No
982-3RH21222BB40

Siemens

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

Datasheet

13In Stock

Rp2.383.512

Rp2.122.082

Rp2.026.132

Rp1.956.968

Min.: 1
Mult.: 1

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

3RH21222HB40
Siemens
1: Rp2.105.204
3In Stock

Mfr. Part No.
3RH21222HB40

Mouser Part No
982-3RH21222HB40

Siemens

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

Datasheet

3In Stock

Rp2.105.204

Rp1.874.411

Rp1.789.836

Rp1.728.193

Rp1.668.752

Min.: 1
Mult.: 1

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

3RH21311AB00
Siemens
1: Rp2.087.041
4In Stock
2Expected 17/08/2026

Mfr. Part No.
3RH21311AB00

Mouser Part No
982-3RH21311AB00

Siemens

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

Datasheet

4In Stock

2Expected 17/08/2026

Rp2.087.041

Rp1.859.367

Rp1.775.342

Rp1.714.250

Rp1.655.360

Min.: 1
Mult.: 1

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

3RH21311AF00
Siemens
1: Rp2.087.408
6In Stock

Mfr. Part No.
3RH21311AF00

Mouser Part No
982-3RH21311AF00

Siemens

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

Datasheet

6In Stock

Rp2.087.408

Rp2.026.866

Rp1.775.342

Rp1.714.250

Rp1.655.360

Min.: 1
Mult.: 1

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

3RH21311AK60
Siemens
1: Rp2.086.674
8In Stock

Mfr. Part No.
3RH21311AK60

Mouser Part No
982-3RH21311AK60

Siemens

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

Datasheet

8In Stock

Rp2.086.674

Rp1.859.367

Rp1.775.342

Rp1.714.250

Rp1.655.360

Min.: 1
Mult.: 1

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

3RH21311AN20
Siemens
1: Rp1.617.016
5In Stock

Mfr. Part No.
3RH21311AN20

Mouser Part No
982-3RH21311AN20

Siemens

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

Datasheet

5In Stock

Rp1.617.016

Quote

Min.: 1
Mult.: 1

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

3RH21311AP00
Siemens
1: Rp2.088.142
7In Stock

Mfr. Part No.
3RH21311AP00

Mouser Part No
982-3RH21311AP00

Siemens

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

Datasheet

7In Stock

Rp2.088.142

Rp1.859.367

Rp1.775.342

Rp1.714.250

Rp1.655.360

Min.: 1
Mult.: 1

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

3RH21311AP60
Siemens
1: Rp1.747.273
5In Stock

Mfr. Part No.
3RH21311AP60

Mouser Part No
982-3RH21311AP60

Siemens

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

Datasheet

5In Stock

Rp1.747.273

Min.: 1
Mult.: 1

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

3RH21311JB40
Siemens
1: Rp2.359.296
2In Stock

Mfr. Part No.
3RH21311JB40

Mouser Part No
982-3RH21311JB40

Siemens

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

Datasheet

2In Stock

Rp2.359.296

Rp2.101.534

Min.: 1
Mult.: 1

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

3RH21312AF00
Siemens
1: Rp1.799.009
3In Stock

Mfr. Part No.
3RH21312AF00

Mouser Part No
982-3RH21312AF00

Siemens

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

Datasheet

3In Stock

Rp1.799.009

Rp1.601.973

Rp1.529.506

Rp1.477.036

Rp1.439.978

Min.: 1
Mult.: 1

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

3RH21312JB40
Siemens
1: Rp2.737.407
5In Stock

Mfr. Part No.
3RH21312JB40

Mouser Part No
982-3RH21312JB40

Siemens

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

Datasheet

5In Stock

Rp2.737.407

Rp2.438.734

Rp2.328.474

Rp2.248.302

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 24V SCREW

3RH21401AB00
Siemens
1: Rp2.087.041
4In Stock

Mfr. Part No.
3RH21401AB00

Mouser Part No
982-3RH21401AB00

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 24V SCREW

Datasheet

4In Stock

Rp2.087.041

Rp1.859.367

Rp1.775.342

Rp1.714.250

Rp1.655.360

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 110V SCREW

3RH21401AF00
Siemens
1: Rp2.087.591
5In Stock

Mfr. Part No.
3RH21401AF00

Mouser Part No
982-3RH21401AF00

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 110V SCREW

Datasheet

5In Stock

Rp2.087.591

Rp1.858.817

Rp1.775.342

Rp1.714.250

Rp1.655.360

Min.: 1
Mult.: 1

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 120V SCREW

3RH21401AK60
Siemens
1: Rp2.087.408
8In Stock

Mfr. Part No.
3RH21401AK60

Mouser Part No
982-3RH21401AK60

Siemens

Contactors - Electromechanical CONTACTOR RELAY 4NO AC 120V SCREW

Datasheet

8In Stock

Rp2.087.408

Rp1.859.367

Rp1.775.342

Rp1.714.250

Rp1.655.360

Min.: 1
Mult.: 1