Voltage and frequency protection
The Reyrolle 7SR158 Argus voltage and frequency relays are numerical, multifunctional devices, with functionality designed for connection to voltage transformers.
![Voltage and Frequency protection – Reyrolle 7SR158 Voltage and Frequency protection – Reyrolle 7SR158](https://assets.new.siemens.com/siemens/assets/api/uuid:01c13ff5-9251-4791-ad18-97f2eef26605/width:100/quality:low/Voltage-and-Frequency-Reyrolle-Argus-7SR158.jpg)
The Reyrolle 7SR158 Argus voltage and frequency relays are numerical, multifunctional devices, with functionality designed for connection to voltage transformers.