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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Description Datasheet Availability Pricing (CHF) Filter the results in the table by unit price based on your quantity.
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Siemens Auxiliary Contacts AUX. SWITCH 3NO+1NC FOR S00 SPRING
Datasheet
380In Stock
CHF 44.76
CHF 43.37
CHF 39.59
CHF 34.26
View
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 24V SPRING
Datasheet
17In Stock
CHF 117.50
CHF 108.85
CHF 102.05
CHF 96.48
View
Min.: 1
Mult.: 1
Siemens Auxiliary Contacts SOLID-STATE COMP. AUX. SW.BL.. 2NO+2NC
Datasheet
10In Stock
CHF 187.80
CHF 159.81
CHF 143.50
CHF 122.21
Min.: 1
Mult.: 1
Siemens Auxiliary Contacts AUX. SWITCH 1NO+1NC FOR S00 & S0 SCREW
Datasheet
113In Stock
CHF 26.91
CHF 22.89
CHF 22.10
CHF 20.96
CHF 20.38
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC DC 24V SCREW
Datasheet
35In Stock
CHF 117.50
CHF 108.85
CHF 102.05
CHF 96.46
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 4NO AC 120V SCREW
Datasheet
8In Stock
CHF 106.26
CHF 100.35
CHF 94.44
CHF 88.55
CHF 82.65
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTROL RELAY 7NO+1NC DC 24V SCREW
Datasheet
5In Stock
CHF 176.78
CHF 157.64
CHF 149.35
CHF 144.27
View
Min.: 1
Mult.: 1
Siemens Auxiliary Contacts AUXILIARY SWITCH 2NO+2NC S00 & S0 SCREW
Datasheet
34In Stock
CHF 43.55
CHF 43.54
CHF 37.03
CHF 35.05
View
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 4NO+4NC DC 24V SPRING
Datasheet
5In Stock
CHF 175.69
CHF 156.98
CHF 149.35
CHF 144.19
Min.: 1
Mult.: 1
Siemens Auxiliary Contacts AUX. SWITCH LATERAL 1NO+1NC S0 SCREW
Datasheet
22In Stock
CHF 40.36
CHF 39.30
CHF 34.32
CHF 30.69
View
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTROL RELAY 7NO+1NC AC 120V SCREW
Datasheet
5In Stock
CHF 165.67
CHF 147.51
CHF 140.83
CHF 135.97
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 120V SCREW
Datasheet
22In Stock
CHF 101.03
CHF 95.41
CHF 88.48
CHF 85.43
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC DC 24V SCREW
Datasheet
14In Stock
CHF 117.50
CHF 108.85
CHF 102.05
CHF 96.48
View
Min.: 1
Mult.: 1
Siemens Auxiliary Contacts AUX. SWITCH 2NO+2NC FOR S00 & S0 SCREW
Datasheet
44In Stock
CHF 43.55
CHF 37.03
CHF 34.53
CHF 34.13
View
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 24V SCREW
Datasheet
6In Stock
CHF 106.26
CHF 100.35
CHF 94.44
CHF 88.55
CHF 82.65
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 110V SCREW
Datasheet
6In Stock
CHF 106.26
CHF 100.35
CHF 94.44
CHF 88.55
CHF 82.65
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC AC 240V SCREW
Datasheet
3In Stock
2Expected 10/22/2026
CHF 106.26
CHF 100.35
CHF 94.44
CHF 88.55
CHF 82.65
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC DC 110V SCREW
Datasheet
4In Stock
1Expected 11/2/2026
CHF 117.50
CHF 108.85
CHF 102.05
CHF 96.46
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 2NO+2NC DC 24V SPRING
Datasheet
3In Stock
3Expected 11/30/2026
CHF 117.50
CHF 108.85
CHF 102.05
CHF 96.46
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical COUPLING RELAY 2NO+2NC DC 24V SPRING
Datasheet
3In Stock
CHF 117.50
CHF 108.85
CHF 102.05
CHF 96.46
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 24V SCREW
Datasheet
2In Stock
8Expected 11/4/2026
CHF 106.26
CHF 100.35
CHF 94.44
CHF 88.55
CHF 82.65
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SCREW
Datasheet
3In Stock
3Expected 11/12/2026
CHF 106.26
CHF 100.35
CHF 94.44
CHF 88.55
CHF 82.65
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 110V SCREW
Datasheet
5In Stock
CHF 102.56
CHF 92.66
CHF 88.48
CHF 85.43
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 220V SCREW
Datasheet
5In Stock
CHF 106.26
CHF 100.35
CHF 94.44
CHF 88.55
CHF 82.65
Min.: 1
Mult.: 1
Siemens Contactors - Electromechanical CONTACTOR RELAY 3NO+1NC AC 230V SCREW
Datasheet
6In Stock
CHF 106.26
CHF 100.35
CHF 94.44
CHF 88.55
CHF 82.65
Min.: 1
Mult.: 1