SIPROTEC 4

SIPROTEC 4

Multifunctional protection relays

Multifunctional protection relays

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About SIPROTEC 4

SIPROTEC 4 integrate protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide – thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide. SIPROTEC 4 is the industry standard for digital protection technology today in all fields of application.
Energy Automation Webinars

Webinars for energy automation - Expert Workshops

Our energy automation webinars offer deep dive looks at our best technology for substation automation and protection. It's your chance to interact in virtual live sessions with our technical experts.

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SIPROTEC 4 Portfolio

Overcurrent and motor protection

Overcurrent and motor protection

Overview

Multifunction protection with synchronization – SIPROTEC 7SJ64

Multifunction protection – SIPROTEC 7SJ66

Multifunction protection – SIPROTEC 7SJ61 (phase-out product)

Multifunction protection – SIPROTEC 7SJ62 (phase-out product)
Distance protection

Distance protection

Overview

Distance protection for transmission lines – SIPROTEC 7SA522

Distance protection for all voltage levels – SIPROTEC 7SA61

Distance protection for all voltage levels – SIPROTEC 7SA63 (phase-out product)

Distance protection for all voltage levels – SIPROTEC 7SA64 (phase-out product)
Line differential protection

Line differential protection

Overview

Line differential protection for two line ends – SIPROTEC 7SD610 (phase-out product)

Line differential protection with distance protection – SIPROTEC 7SD5 (phase-out product)
Breaker management

Breaker management

Overview

Breaker-management device – SIPROTEC 7VK61(phase-out product)
Transformer differential protection

Transformer differential protection

Overview

Transformer differential protection – SIPROTEC 7UT613  (phase-out product)

Transformer differential protection – SIPROTEC 7UT63  (phase-out product)

Transformer differential protection – SIPROTEC 7UT612 (phase-out product)
Motor and generator protection

Motor and generator protection

Overview

Motor and generator protection – SIPROTEC 7UM62  (phase-out product)
Parelleling device

Paralleling device

Overview

Paralleling device – SIPROTEC 7VE6 (phase-out product)
High speed busbar transfer device

High speed busbar transfer device

Overview

High speed busbar transfer – SIPROTEC 7VU68 (phase-out product)
Busbar protection

Busbar protection

Overview

Busbar protection – SIPROTEC 7SS52 (phase-out product)
Bay controller

Bay controller

Overview

Bay controller – SIPROTEC 6MD66 (phase-out product)
Easy Protection Device Selector

Easy Protection Device Selector

This tool gives a quick guidance to find a protection device of SIPROTEC 5, SIPROTEC 4, SIPROTEC Compact, Reyrolle which would fit your needs.

Easy Protection Device Selector
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    Digital Grid Customer Support Center - Germany - Tel.: +49 911 2155 4466

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Retrofit and enhancement services

Retrofit and enhancement services

Extend the lifespans of your energy system and thereby significantly reduce your costs of ownership with our retrofits and enhancement services for energy automation.

Learn more about our retrofit and enhancement services
Power Academy training services

Power Academy training services

Our goal is to prepare you for new professional challenges in power transmission and distribution. We offer professional training courses with different training methods like Virtual Classroom Training, Classroom Training, WBTs, Webinars and Blended Learning. You can choose between open enrollment training courses, customized training courses, workshops or long-term trainings (curricula).

Learn more about our training offerings
Energy Automation and Digital Grid Newsletter

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Energy Automation Webinars

Energy automation webinars

Learn more in one of our energy automation webinars for protection and substation automation engineers and experts.

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Substation Automation and Protection Newsletter

Highlights, Tutorials and Updates

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Digital substations with the Future built in

Digital substations with the Future built in

Learn more about digital substation and their important role within power grids.

SIPROTEC and SICAM Security Update Report

SIPROTEC and SICAM Security Update Report

Stay up-to-date with the report outlining the newest security and patch related news.

Related Content

Energy goes digital

Energy goes digital

Energy goes digital

Grid Diagnostic Suite – Powered by MindSphere - allows grid data to be processed transparently in the cloud. Visualize and analyze data provided by SIPROTEC and SICAM devices using Grid Diagnostic Suite apps. This keeps your power grid status transparent so you can react more quickly to grid conditions and plan predictive maintenance.
Cyber and grid security

Cybersecurity 

Cybersecurity 

Full protection 24/7 for substations – thanks to interoperable products that meet strict cyber security requirements: secure communication, protection of data integrity, access control and consistent monitoring of substation security
Substation Automation Portfolio

Substations Automation

Substations Automation

Comprehensive SICAM portfolio for future-proof substation automation.
Power Quality and Measurements

Power quality

Power quality

Siemens offers comprehensive solutions for the measurement, recording, and reporting of information to improve power quality.
Telecommunication solutions

Telecommunication solutions

Telecommunication solutions

Telecommunication solutions to respond proactively to digitalization and the decentralized structures in energy supply with end-to-end telecommunication networks for the digital grid.