Christmas Opening Hours and Delivery Dates here

Siemens Sirius 3RF2x Solid State Relays

Siemens Brand: Siemens

The Sirius 3RF2x series from Siemens are a range of single-phase solid state relays that are available in 45 or 22.5mm widths. The relay functions at the zero crossing point for resistive loads and has high-power thyristors with high reverse voltage capability.

  • Choice of switching currents and voltages
  • Compact design
  • Screw fixing
  • Industrial connection technology for quick and convenient connection
  • Touch-safe without accessories (IP20 protection level)
  • DCB Technology for optimised heat transfer
  • Approvals: IEC, UL/CSA, CE
Description Image Product Buy Pricing (Ex VAT) Operating Voltage Type Number of Analogue Inputs Number of Analogue Outputs Number of Digital Inputs Number of Digital Outputs
Siemens 3RF2050-1AA45 Semiconductor Relay 48-600 VAC 50A
Siemens 3RF2050-1AA45 Semiconductor Relay 48-600 VAC 50A
Standard range
Order code: 64-8344
MPN: 3RF20501AA45

2 available to back orderBack-order availability date - 10/01/2026
1+ £57.83
Price per unit Ex VAT 		48 to 600V SSR 1 1 0 0
Siemens 3RF2050-1AA02 Semiconductor Relay 24-230 VAC 50A
Siemens 3RF2050-1AA02 Semiconductor Relay 24-230 VAC 50A
Extended range
Order code: 64-8349
MPN: 3RF20501AA02

Available to back orderBack order, lead time 14 days
1+ £45.74
Price per unit Ex VAT 		24 to 230V SSR 1 1 0 0
Siemens 3RF2050-1AA22 Semiconductor Relay 24-230 VAC 50A
Siemens 3RF2050-1AA22 Semiconductor Relay 24-230 VAC 50A
Standard range
Order code: 64-8350
MPN: 3RF20501AA22

2 available to back orderBack-order availability date - 10/01/2026
1+ £52.35
Price per unit Ex VAT 		24 to 230V SSR 1 1 0 0
Siemens 3RF2130-1AA02 Semiconductor Relay 24-230 VAC 30A
Siemens 3RF2130-1AA02 Semiconductor Relay 24-230 VAC 30A
Standard range
Order code: 64-8354
MPN: 3RF21301AA02

11 available to back orderBack-order availability date - 10/01/2026
1+ £42.79
Price per unit Ex VAT 		24 to 230V SSR 1 1 0 0
Siemens 3RF2130-1AA22 Semiconductor Relay 24-230 VAC 30A
Siemens 3RF2130-1AA22 Semiconductor Relay 24-230 VAC 30A
Standard range
Order code: 64-8355
MPN: 3RF21301AA22

100,000,000 available to back orderBack-order availability date - 29/12/2025
1+ £47.96
Price per unit Ex VAT 		24 to 230V SSR 1 1 0 0
45mm Width
Order code64-834464-834564-834664-834964-8350
Part number3RF2050-1AA453RF2090-1AA453RF2030-1AA023RF2050-1AA023RF2050-1AA22
Configuration1NO1NO1NO1NO1NO
Switching current50A88A30A50A50
Switching voltage48 to 600V AC48 to 600V AC24 to 230V AC24 to 230V AC24 to 230V AC
Power loss66W118W44.2W66W66W
Control voltage4 to 30V DC4 to 30V DC15 to 24V DC15 to 24V DC110 to 230V AC
FunctionZero crossZero crossZero crossZero crossZero cross
Ambient temperature-25°C to +60°C-25°C to +60°C-25°C to +60°C-25°C to +60°C-25°C to +60°C
Dimensions58 x 45 x 48mm58 x 45 x 48mm58 x 45 x 48mm58 x 45 x 48mm58 x 45 x 48mm

22.5mm Width
Order code64-835364-835464-8355
Part number3RF2190-1AA453RF2130-1AA023RF2130-1AA22
Configuration1NO1NO1NO
Switching current88A30A30A
Switching voltage48 to 600V24 to 230V AC24 to 230V AC
Power loss118W44.2W44.2W
Control voltage4 to 30V DC15 to 24V DC110 to 230V AC
FunctionZero crossZero crossZero cross
Ambient temperature-25°C to +60°C-25°C to +60°C-25°C to +60°C
Dimensions85 x 22.5 x 4885 x 22.5 x 4885 x 22.5 x 48


Trustpilot