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.

Types of Contactors & Relays
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Siemens Auxiliary Contacts AUX. SWITCH 3NO+1NC FOR S00 SPRING
Datasheet
376In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 120V SCREW
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17In Stock
7Expected 29/06/2026
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 24V SCREW
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20In Stock
Min.: 1
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Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 24V SPRING
Datasheet
21In Stock
Min.: 1
Mult.: 1

Siemens Auxiliary Contacts AUX. SWITCH 2NO+2NC FOR S00 & S0 SCREW
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66In Stock
Min.: 1
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Siemens Auxiliary Contacts AUX. SWITCH 2NO+2NC FOR S00 & S0 SCREW
Datasheet
65In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 24V SCREW
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6In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 110V SCREW
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6In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 230V SCREW
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6In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 240V SCREW
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5In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC DC 24V SCREW
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11In Stock
Min.: 1
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Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC DC 110V SCREW
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6In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC DC 24V SPRING
Datasheet
10In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical COUPLING RELAY 2NO+2NC DC 24V SPRING
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3In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SCREW
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4In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SCREW
Datasheet
7In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 220V SCREW
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5In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 230V SCREW
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7In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 240V SCREW
Datasheet
4In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical COUPLING RELAY 3NO+1NC DC 24V SCREW
Datasheet
2In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SPRING
Datasheet
3In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 24V SPRING
Datasheet
1In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 4NO AC 24V SCREW
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4In Stock
Min.: 1
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Siemens Contactors - Electromechanical CONTACTOR RELAY 4NO AC 110V SCREW
Datasheet
5In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 4NO AC 120V SCREW
Datasheet
8In Stock
Min.: 1
Mult.: 1