3RF2120-1AA04 SIEMENS SIRIUS 3RF2 - solid-state relay
3RF2120-1AA04 SIEMENS SIRIUS 3RF2 - solid-state relay
SIRIUS 3RF2 single-phase solid-state relay for mounting on a cooling surface. Rated current 20 A, switching voltage 48 to 460 V AC, control voltage 24 V DC. Screw terminals, width 22.5 mm. More
Code: 3RF2120-1AA04
SIRIUS 3RF2 single-phase solid-state relay for mounting on a cooling surface. Rated current 20 A, switching voltage 48 to 460 V AC, control voltage 24 V DC. Screw terminals, width 22.5 mm. More
Code: 3RF2120-1AA04
3RF2120-1AA04 - solid-state relay
SIRIUS 3RF2 single-phase solid-state relay for mounting on a cooling surface. Rated current 20 A, switching voltage 48 to 460 V AC, control voltage 24 V DC. Screw terminals, width 22.5 mm.
Would you like to buy or repair this part?
We will check the availability of the spare part as well as the options for diagnosing and repairing your faulty part.
Applications
The relay is used for electronic switching of AC loads. When selecting a relay, compare the voltage, current, load type and planned cooling arrangement. The manufacturer identifies this version as a phase-out type; we will confirm availability of the specific part in our quotation.
Technical specifications according to Siemens
| Manufacturer | SIEMENS |
|---|---|
| Order number | 3RF2120-1AA04 |
| Series / system | SIRIUS 3RF2 |
| Version | Single-phase, single-pole |
| Rated current | 20 A |
| Rated switching voltage | 48 to 460 V AC |
| Rated control | 24 V DC |
| Frequency | 50 to 60 Hz |
| Switching | At zero-crossing |
| Terminals | Screw terminals |
| Protection rating | IP20 |
| Installation | Screw mounting to the cooling surface |
| Dimensions W × H × D | 22,5 mm × 85 mm × 48 mm |
| Net weight | 0,064 kg |
Switching and heat dissipation
The relay switches at zero-crossing and is designed for mounting on an accessible cooling surface. A current rating of 20 A does not guarantee the same load capacity under all cooling conditions and ambient temperatures. The design must take into account heat dissipation, protection and reduced load capacity in accordance with the device’s documentation.
Scope of supply
The subject of the offer is the solid-state relay itself. The heat sink, fuses and other accessories are not automatically included in the supply.
We will confirm the exact condition of the part and the contents of the specific delivery in the quotation.
Frequently Asked Questions
How can I check that a spare part is the correct model?
Please send the full order number and a photograph of the label on the original part. We will check that the design matches; similar labelling does not in itself confirm the same wiring or functions.
Does this version include a cooling surface?
This is a relay designed for mounting on a cooling surface. The required heat sink and mounting accessories must be specified separately.
Can the screw-type and spring-type versions be interchanged?
Compare the full order number, terminals and connecting wires. Matching current and voltage values alone do not confirm that the connections are the same.
Can you carry out diagnostics or repairs?
Please send us a description of the fault and the details from the label. We will assess the options for diagnosis and repair, as well as the availability of spare parts. For passive and mechanical components, we will first assess whether repair is worthwhile based on their condition.
Why buy from FOXON
Spare part availability
We will check the current availability of the part and confirm the estimated delivery date before you place your order.
New original and refurbished parts
Depending on current availability, we will check for a new original part or a reconditioned alternative.
Parts with a warranty
We will confirm the condition of the specific part and the warranty terms in our quotation.
Diagnostics and repair
As well as purchasing a spare part, we will also check the options for diagnosing and repairing your faulty part.
Available part conditions
Depending on current availability, we offer new original parts, new parts from previous stock, as well as reconditioned or used, tested variants. We will confirm the availability of a specific model, the price, the scope of delivery and the warranty before you place your order. The options listed do not imply that all variants are currently in stock.
Sales, repairs and purchase of surplus automation parts
We supply spare parts for industrial automation and assess options for diagnosing and repairing faulty equipment. You can also offer us any unwanted parts for purchase.
Purchase or repair of part 3RF2120-1AA04
Please provide the full order number, the required quantity and, in the case of a repair, a description of the fault. We will check the availability of the spare part as well as the options for diagnosis and repair.
Request purchase or repair of a part