SIPROTEC 4

SIPROTEC 4

Multifunctional protection relays

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.

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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)

Multifunction protection – SIPROTEC 7SJ63 (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

Distance protection for all voltage levels – SIPROTEC 7SA64

Line differential protection

Line differential protection

Overview

Line differential protection for two line ends – SIPROTEC 7SD610

Line differential protection with distance protection – SIPROTEC 7SD5

Breaker management

Breaker management

Overview

Breaker-management device – SIPROTEC 7VK61

Transformer differential protection

Transformer differential protection

Overview

Transformer differential protection – SIPROTEC 7UT613

Transformer differential protection – SIPROTEC 7UT63

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

Motor and generator protection

Overview

Motor and generator protection – SIPROTEC 7UM61 (phase-out product)

Motor and generator protection – SIPROTEC 7UM62

Parelleling device

Paralleling device

Overview

Paralleling device – SIPROTEC 7VE6

High speed busbar transfer device

High speed busbar transfer device

Overview

High speed busbar transfer – SIPROTEC 7VU68

Busbar protection

Busbar protection

Overview

Busbar protection – SIPROTEC 7SS52

Bay controller

Bay controller

Overview

IO-box – SIPROTEC 6MD61 (phase-out product)

Bay controller – SIPROTEC 6MD63 (phase-out product)

Bay controller – SIPROTEC 6MD66
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
Information

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Online shop - Industry Mall

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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

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Energy goes digital

Energy goes digital

Energy goes digital

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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.
Smart Communication

Smart Communication

Smart Communication

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