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PROTECTION RELAYS

SIPROTEC: Multifunctional protection relays

Get protection, control and measurement in a single device. With intelligent digital field device options, the unique DIGSI 4 engineering program and a million successfully operating devices in the field, SIPROTEC is the industry standard for digital protection technology.

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PROTECTION AND CONTROL

High-performance protection

Future-proof your power supply with protection relays and control for digital substations.

SIPROTEC includes:

  • Engineering tools for protection: Assist your workflow, from planning to operation of your systems.
  • Full control: With DIGSI 5 software, get full control over engineering and cover device configuring and setting.
  • Compact options: Perfectly suited for protection in distribution systems with a comprehensive range of functions in a surprisingly compact housing.
  • Power quality measurement: Monitor your transmission and distribution lines with a traveling wave recorder.
  • Universal protection relay: Protect your feeders, lines and motors in a medium-voltage power grid in utility and industrial sectors.
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Go for SIPROTEC V:

Virtualized Protection & Control for digital substations.

Revolutionize your power grid with SIPROTEC V!

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From multiple engineering tools for protection to configuration software, power quality measurement solutions and protection relays and control, there’s a reason the SIPROTEC family enjoys top recognition among users worldwide.

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Engineering and configuration software

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DIGSI 4

DIGSI 4 is the intuitive PC interface for SIPROTEC 4 devices. Configure systems with an assignment matrix, project logic visually with CFC, and ensure interoperability with IEC 61850 support.
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DIGSI 5

DIGSI 5 is the versatile engineering tool for SIPROTEC 5 devices. Its innovative UI, context-sensitive instructions, and simple USB connection enable efficient parameterization, commissioning, and operation.
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IEC 61850

The IEC 61850 System Configurator is the manufacturer-neutral solution for interoperable engineering of all IEC 61850 products, including devices from third parties.
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SIGRA

Quickly analyze line faults to reduce downtime. SIGRA displays records from protection units in various views, calculates values like impedance, and provides offline fault localization to restore lines faster.
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SIPROTEC 5 Web UI

Access SIPROTEC 5 devices via a standard web browser. The UI provides read/write access to settings and logs, simplifying commissioning and testing. Monitor data graphically on any PC to increase power supply availability.
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SICAM Function Point Manager

Centrally manage and assign Function Points to SICAM & SIPROTEC devices with our cloud service. Generate license files in seconds to extend functionality, even after device purchase for max flexibility.
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SIPROTEC DigitalTwin

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Webinars

Gain expert insights on digital transformation, automation and sustainable solutions. Learn from our specialists, enhance your skills and drive innovation. Join us live or on demand.

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Frequently asked questions

Does Siemens offer universal protection relays?

Siemens’ universal protection relays portfolio includes products such as SIPROTEC 7SX800 and 7SX85 to provide flexibility and cost savings.

Our devices cover a wide range of applications and offer features such as slim design, embedded cybersecurity and IoT connectivity. Read frequently asked questions about our universal protection relays for more information.

Discover the possibilities

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