Parameterizable 24 V DC safety relay base unit with fail-safe inputs and outputs.
Siemens 3SK2122-1AA10 is a SIRIUS 3SK2 parameterizable safety relay base unit for configurable machine safety functions. The exact article provides 20 fail-safe digital inputs, four fail-safe digital outputs and two standard digital outputs, operates at 24 V DC and uses screw terminals in a 45 mm enclosure. Configuration is performed with SIRIUS Safety ES. Siemens specifies capability up to SIL 3 under IEC 62061 and Performance Level e under ISO 13849-1, and lists the article as PM300 Active Product. Buyers should verify the complete suffix, application program, connected sensors, output expansions and device-connector architecture.
| Item | Confirmed information |
|---|---|
| Manufacturer | Siemens |
| Complete Part Number | 3SK2122-1AA10 |
| Product Type | SIRIUS safety relay basic unit |
| Series | SIRIUS 3SK2 |
| Official Life Cycle | PM300 Active Product |
| Fail-Safe Inputs | 20 F-DI |
| Fail-Safe Outputs | 4 F-DQ |
| Standard Outputs | 2 DQ |
| Supply Voltage | 24 V DC |
| Parameterization | SIRIUS Safety ES |
| Terminal Type | Screw terminal |
| Width | 45 mm |
| Safety Capability | Up to SIL 3 / Performance Level e |
| Product Condition | Original new |
| Availability | In stock |
| Warranty | With 1 year warranty |
| Shipping | Worldwide options reviewed after order verification |
Condition, availability and warranty are Stockoems commercial information. The life-cycle wording above follows the current Siemens listing for this exact article.
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Send the complete part number and required quantity so our team can review availability, condition and shipping options.
