SiemensCertification up to SIL 3/ PL e
With the Sirius 3RQ1 series, Siemens Smart Infrastructure is completing its portfolio of coupling relays for electrical systems in industry and infrastructure.

© EES
As simple as a light switch.
Remote control with the MFW.
- Data logger function
- IEC 60870-5-101/-104
- Future-proof LTE-4G connection
- Encrypted data communication
- Own infrastructure with radio or cable
- Optional CoDeSys Soft PLC
