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

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

Siemens Contactors - Electromechanical CONTACTOR_AUX_3RH2140-1AP00_230V
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5In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 4NO AC 240V SCREW
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6In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 4NO DC 24V SCREW
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11In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 4NO DC 24V SPRING
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1In Stock
4Expected 8/14/2026
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 4NO+4NC 24V S00 SCREW
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3In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 4NO+4NC DC 24V SPRING
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5In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTROL RELAY 6NO+2NC AC 120V SCREW
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2In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTACTOR RELAY 6NO+2NC, 24VDC, SZ S00
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4In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTROL RELAY 7NO+1NC AC 120V SCREW
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5In Stock
Min.: 1
Mult.: 1

Siemens Contactors - Electromechanical CONTROL RELAY 7NO+1NC DC 24V SCREW
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6In Stock
Min.: 1
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Siemens Auxiliary Contacts AUXILIARY SWITCH 1NC WIRE TOP SCREW
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3In Stock
Min.: 1
Mult.: 1

Siemens Auxiliary Contacts AUX. SWITCH 1NO WIRE TOP SCREW
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5In Stock
Min.: 1
Mult.: 1

Siemens Auxiliary Contacts AUX. SWITCH LATERAL 1NO+1NC S00 SCREW
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6In Stock
Min.: 1
Mult.: 1

Siemens Auxiliary Contacts AUXILIARY SWITCH 2NO+2NC S00 & S0 SCREW
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34In Stock
Min.: 1
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Siemens Auxiliary Contacts AUXILIARY SWITCH 4NO, S00 & S0 SCREW
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12In Stock
Min.: 1
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Siemens Auxiliary Contacts AUX. SWITCH 2NO+2NC S00 & S0 SCREW
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3In Stock
Min.: 1
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Siemens Auxiliary Contacts AUX. SWITCH 4NC FOR S00 SCREW
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13In Stock
Min.: 1
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Siemens Auxiliary Contacts AUX. SWITCH 1NO+3NC FOR S00 SCREW
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5In Stock
Min.: 1
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Siemens Auxiliary Contacts AUX. SWITCH 2NO+2NC FOR S00 SCREW
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10In Stock
Min.: 1
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Siemens Auxiliary Contacts AUX. SWITCH 3NO+1NC FOR S00 SCREW
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3In Stock
Min.: 1
Mult.: 1

Siemens Auxiliary Contacts AUX. SWITCH 4NO FOR S00 SCREW
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13In Stock
Min.: 1
Mult.: 1

Siemens Auxiliary Contacts AUX. SWITCH 1NC FOR S00 SCREW
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3In Stock
Min.: 1
Mult.: 1

Siemens Auxiliary Contacts AUX. SWITCH 2NC FOR S00 SCREW
Datasheet
9In Stock
Min.: 1
Mult.: 1