Siemens Sirius Innovation 3RH2 4 Pole Contactor Relay, 2NO/2NC, 10 A, 110 V ac Coil

  • RS Stock No. 746-0730
  • Mfr. Part No. 3RH2122-1AF00
  • Manufacturer Siemens
Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

Contactor Relays - 3RH2 Range

Climate-proof, finger safe contactor relays. RC elements, varistors, diodes or diode assemblies (combination of a diode and a Zener diode) can be plugged onto all contactor relays for damping opening surges in the coil.

Size S00
High degree if contact stability at low voltages & current
Suitable for use with solid-state circuits with currents ≥ 1 mA at a voltage of ≥ 17 V
Capable of expansion by up to four contacts through use of snap-on auxiliary switch blocks


The OFF-delay of the NO contact and the ON-delay of the NC contact are increased if the contactor coils are attenuated against voltage peaks (noise suppression diode 6 to 10 times; diode assemblies 2 to 6 times, varistor +2 to 5 ms).


IEC 60947-1, EN 60947-1, IEC 60947-4-1, EN 60947-4-1, IEC 60947-5-1, EN 60947-5-1.

Siemens Sirius Range Contactor & Control Relays

Attribute Value
Contact Current Rating 10 A
Range SIRIUS Innovation
Contact Voltage Rating 690 V ac
Series 3RH2
Normal State Configuration 2NO/2NC
Terminal Type Screw
Depth 73mm
Width 45mm
Length 57.5mm
45 In stock for delivery within 6 working days
Price (VAT excluded) Each
TWD 1,015.00
(exc. GST)
TWD 1,066.00
(inc. GST)
Per unit
1 +