# Siemens Reyrolle 7SR11 Non-Directional Overcurrent Relay

> feeder-protection - Non-directional overcurrent, earth fault and breaker fail protection for utility distribution and industrial MV switchgear

**Voltformer canonical:** https://voltformer.com/product/siemens-reyrolle-7sr11-overcurrent-protection-relay - markdown version: https://voltformer.com/product/siemens-reyrolle-7sr11-overcurrent-protection-relay.md

## Overview

- **Brand:** Siemens
- **Product family:** Reyrolle 7SR Series
- **Application:** Non-directional overcurrent, earth fault and breaker fail protection for utility distribution and industrial MV switchgear
- **Product type:** feeder-protection

## Protection & Control Functions

- **ANSI Functions:** 50/51, 50N/51N, 46, 49, 50BF
- **Transformer Windings:** N/A (Feeder / Bay)
- **Supports Transformer:** No
- **Supports Feeder:** Yes
- **Supports Breaker Control:** Yes
- **Arc Flash Protection:** No

## Digital Integration & Protocols

- **IEC 61850 Edition:** Ed2
- **GOOSE:** Yes
- **Sampled Values (SV):** No
- **Redundancy (PRP/HSR):** No / Optional
- **Protocols:** IEC 61850, Modbus RTU/TCP, DNP3, IEC 60870-5-103
- **Engineering Software:** Reydisp Evolution

## Electrical Interface

- **Frequency:** 50/60 Hz
- **Nominal Current:** 1 A / 5 A
- **Auxiliary Supply:** 24-250 Vdc / 100-230 Vac
- **Operating Temperature:** -10 to +60 °C

## Standards

- IEC 60255
- IEC 61850
- CE

## Sources

- https://cache.industry.siemens.com/dl/files/281/109747281/att_1133868/v1/7SR11_and_7SR12_-_Argus_Complete_Technical_Manual.pdf?download=true
- https://www.siemens.com/en-us/products/reyrolle/7sr110/

- **Source scope:** manufacturer-family
- **Last reviewed:** 2026-09-13

Manufacturer portfolio/family source. Confirm the exact order code, guaranteed ratings and project-specific options against the current OEM datasheet before procurement or an SLD study.

Technical ratings are configuration-dependent where stated by the manufacturer. Request project-specific verification before procurement.