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Medium Voltage Distribution and Grid Automation

Protection Relays by Application

Covering all applications in medium-voltage and high-voltage protection, from overcurrent or motor to complex distance protection, our protective relays give you the safety and reliability needed to operate with confidence. Add IEC 61850 Ethernet for best-in-class interoperability and communication in MV and HV power networks.

Overcurrent Protection

Overcurrent protection can be used for primary protection, or as a backup for phase overcurrent or earth fault protection. Instantaneous, definite time, IDMT, directional or non-directional are types of overcurrent characteristics often used in protection from basic to advanced feeder applications. Available in a range from basic devices, to complex numerical devices with IEC 61850 communication and cybersecurity.

Easergy P5

Easergy P5

Withdrawable protection relays for demanding applications. Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850

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Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

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MiCOM P12x

MiCOM P12x

Self or Dual Powered Three Phase and Earth Fault Overcurrent. -

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Sepam series 10

Sepam series 10

Protection Relays for Basic Applications. Overcurrent and earth fault relay for basic protection of feeders and distribution transformers

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Sepam serie 20

Sepam serie 20

Digital protection relays for current or voltage protection. Digital protection relays for current or voltage protection, for any distribution system

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Sepam serie 40

Sepam serie 40

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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MiCOM P11x

MiCOM P11x

Self or Dual Powered Three Phase and Earth Fault Overcurrent. -

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MiCOM P13x

MiCOM P13x

Feeder Management Relays and Bay Control. -

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Sepam series 60

Sepam series 60

Digital Protection Relays for Distribution Systems. -

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Sepam serie 80

Sepam serie 80

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Vamp 50 Series

Vamp 50 Series

Intelligent protection for low and medium voltage power systems. VAMP 50 series offers a comprehensive selection of modular protection relays for overcurrent, earth fault, voltage, frequency and line differential protection. Models available: VAMP50, VAMP52, VAMP55, VAMP59

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Vamp 200 Series

Vamp 200 Series

Complete protection and control managers for power systems . VAMP 200 series offers a comprehensive family of protection and control devices with complex measurement functions for the management of feeders, motors and capacitor banks. Models available: VAMP210, VAMP230, VAMP255, VAMP257, VAMP259, VAMP265, VAMP265M

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Arc Protection

Arc flash protection detects electrical arcs in MV and LV equipment and quickly isolates power to limit arc energy and minimize risks. The ultra-fast leading Vamp arc protection solutions are available in a flexible range, from stand-alone devices through to complex schemes or embedded protection relays, all with the latest connectivity, including IEC 61850, PRP, redundant Ethernet communications and cybersecurity features.

Easergy P5

Easergy P5

Withdrawable protection relays for demanding applications. Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850

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Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

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Motor Protection

Our Motor Protection relays are designed for motor applications where efficiency and reliability are essential. From simple or basic protection to advanced Motor Protection applications, they use dedicated functions and communication like IEC 61850 that enable you to manage motors more effectively and save time.

Easergy P5

Easergy P5

Withdrawable protection relays for demanding applications. Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850

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Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

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Sepam serie 20

Sepam serie 20

Digital protection relays for current or voltage protection. Digital protection relays for current or voltage protection, for any distribution system

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Sepam serie 40

Sepam serie 40

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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MiCOM P22x

MiCOM P22x

Motor and Overcurrent Protection Relay. -

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Sepam series 60

Sepam series 60

Digital Protection Relays for Distribution Systems. -

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Sepam serie 80

Sepam serie 80

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Vamp 50 Series

Vamp 50 Series

Intelligent protection for low and medium voltage power systems. VAMP 50 series offers a comprehensive selection of modular protection relays for overcurrent, earth fault, voltage, frequency and line differential protection. Models available: VAMP50, VAMP52, VAMP55, VAMP59

View details
Vamp 200 Series

Vamp 200 Series

Complete protection and control managers for power systems . VAMP 200 series offers a comprehensive family of protection and control devices with complex measurement functions for the management of feeders, motors and capacitor banks. Models available: VAMP210, VAMP230, VAMP255, VAMP257, VAMP259, VAMP265, VAMP265M

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Transformer Protection and Control

As transformers are high-cost, essential assets in power systems, protection schemes should be designed to detect and clear any abnormal conditions quickly. In our advanced transformer protection and control devices, we use leading techniques such as multiple winding differential, REF and thermal algorithms, and gather service data to help schedule preventive maintenance.

Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

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Sepam serie 20

Sepam serie 20

Digital protection relays for current or voltage protection. Digital protection relays for current or voltage protection, for any distribution system

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Sepam serie 40

Sepam serie 40

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Sepam series 60

Sepam series 60

Digital Protection Relays for Distribution Systems. -

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Sepam serie 80

Sepam serie 80

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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MiCOM P64x

MiCOM P64x

Advanced Transformer Protection and Control. -

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Capacitor Bank Protection

Capacitor banks provide essential functionality to help maintain the quality, or power factor of virtually any electrical distribution system. Due to the varied nature, our protection devices are a perfect fit, offering flexibility to adapt to any MV application. With the latest connectivity including IEC 61850, PRP, redundant Ethernet communications and cybersecurity features.

Easergy P5

Easergy P5

Withdrawable protection relays for demanding applications. Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850

View Products
Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

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Sepam series 60

Sepam series 60

Digital Protection Relays for Distribution Systems. -

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Sepam serie 80

Sepam serie 80

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Vamp 200 Series

Vamp 200 Series

Complete protection and control managers for power systems . VAMP 200 series offers a comprehensive family of protection and control devices with complex measurement functions for the management of feeders, motors and capacitor banks. Models available: VAMP210, VAMP230, VAMP255, VAMP257, VAMP259, VAMP265, VAMP265M

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Generation Protection

Whether for small, medium or large generators, find devices with dedicated functionality to provide reliable protection of generators and rotating machines. A flexible and scalable range of devices for any generation application; with the latest connectivity including IEC 61850, PRP, redundant Ethernet communications and cybersecurity features.

Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

View Products
Sepam serie 40

Sepam serie 40

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Sepam serie 80

Sepam serie 80

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Sepam series 60

Sepam series 60

Digital Protection Relays for Distribution Systems. -

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MiCOM P34x

MiCOM P34x

Generator Protection Relays. Generator Protection Relays

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Vamp 200 Series

Vamp 200 Series

Complete protection and control managers for power systems . VAMP 200 series offers a comprehensive family of protection and control devices with complex measurement functions for the management of feeders, motors and capacitor banks. Models available: VAMP210, VAMP230, VAMP255, VAMP257, VAMP259, VAMP265, VAMP265M

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Line Differential and Phase Comparison

Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

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MiCOM P53x

MiCOM P53x

Compact Line Differential Protection Device. -

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MiCOM P54x

MiCOM P54x

Current Differential Protection Relay with Optional Subcycle Distance. Current Differential Protection Relay with Optional Subcycle Distance

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Vamp 50 Series

Vamp 50 Series

Intelligent protection for low and medium voltage power systems. VAMP 50 series offers a comprehensive selection of modular protection relays for overcurrent, earth fault, voltage, frequency and line differential protection. Models available: VAMP50, VAMP52, VAMP55, VAMP59

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Distance Protection

When searching for reliable distance protection for cables and lines, look no further. Our advanced distance protection relays offer field-proven experience with sophisticated algorithms and protection characteristics such as quadrilateral, polygon or mho which are well known for their high performance in complex applications. With subcycle operation, they offer the latest connectivity with IEC 61850, PRP, redundant Ethernet communications and cybersecurity features.

Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

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MiCOM P436 and MiCOM P438

MiCOM P43x

Distance Protection and Control Units. -

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MiCOM P34x

MiCOM P44x

Full Scheme and High Performance Distance Protection. -

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Busbar Differential

Solutions for busbar differential protection need to be flexible and high performance to protect your valuable assets. Our solutions include high impedance differential and numerical protection schemes that offer security, sensitivity and performance in a wide range of busbar configurations. Choose from centralized or distributed schemes to allow flexibility and meet your application needs.

Autoreclose and Check Synchronism

Autoreclose and check synchronism protection devices are designed for systems where temporary or transient faults may occur frequently. Without need for other protection functions, they can be applied as stand-alone or multi-function devices in dedicated schemes, from simple to complex reclosing applications in dual circuit breaker or breaker and a half bus or mesh systems.

Easergy P5

Easergy P5

Withdrawable protection relays for demanding applications. Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850

View Products
Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

View Products
Sepam series 60

Sepam series 60

Digital Protection Relays for Distribution Systems. -

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Sepam serie 80

Sepam serie 80

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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MiCOM P746

MiCOM P841

Multifunction Line Terminal Protection and Control IED. -

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Voltage and Frequency Protection

Our voltage and frequency protection devices are capable of highly versatile applications that can easily integrate into new and existing power distribution systems. With focus on detecting faults based on voltage or frequency measurements, users get a cost-effective solution that can also detect issues relating to power quality or instability.

Easergy P5

Easergy P5

Withdrawable protection relays for demanding applications. Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850

View Products
Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

View Products
Sepam series 10

Sepam series 10

Protection Relays for Basic Applications. Overcurrent and earth fault relay for basic protection of feeders and distribution transformers

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Sepam serie 20

Sepam serie 20

Digital protection relays for current or voltage protection. Digital protection relays for current or voltage protection, for any distribution system

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Sepam serie 40

Sepam serie 40

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Sepam series 60

Sepam series 60

Digital Protection Relays for Distribution Systems. -

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Vamp 50 Series

Vamp 50 Series

Intelligent protection for low and medium voltage power systems. VAMP 50 series offers a comprehensive selection of modular protection relays for overcurrent, earth fault, voltage, frequency and line differential protection. Models available: VAMP50, VAMP52, VAMP55, VAMP59

View details
MiCOM C264P

MiCOM C264P

Modular Substation Computer with Backup Protection. -

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Circuit Breaker Failure

If you are searching for reliable distance protection for cables and lines, look no further. Our advanced distance protection relays offer field-proven experience with sophisticated algorithms and protection characteristics such as quadrilateral, polygon or mho, which are well known for their high performance in complex applications. With subcycle operation, they offer the latest connectivity with IEC 61850, PRP, redundant Ethernet communications and cybersecurity features.

Easergy P5

Easergy P5

Withdrawable protection relays for demanding applications. Medium Voltage protection relays with a focus on safety and cyber security. Easy to use for Panel builders, System Integrators and End Users. From overcurrent to differential protection with arc flash protection, redundant Ethernet communication and IEC 61850

View Products
Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

View Products
Sepam serie 20

Sepam serie 20

Digital protection relays for current or voltage protection. Digital protection relays for current or voltage protection, for any distribution system

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Sepam serie 40

Sepam serie 40

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Sepam series 60

Sepam series 60

Digital Protection Relays for Distribution Systems. -

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Sepam serie 80

Sepam serie 80

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Dynamic Line Rating and Interconnection Protection

Interconnection protection relays are designed for cost-effective, highly reliable protection of rotating machines. Within the same device, dynamic line rating (DLR) functionality can be used to also optimize line capacity (up to 50%) based on weather conditions, enabling more wind, solar or distributed generation (DG) to be connected to the grid.

MiCOM P24x

MiCOM P341 and MiCOM P922G

Interconnection Protection Relays. -

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Marine Protection

Our marine protection relays use products conforming to all of the necessary standards for marine certification, while offering all of the main features of our common ranges from our wide protection relay portfolio. That means that you get all of the standard functionality, combined with the approvals needed in marine power applications.

Easergy P3

Easergy P3

Compact protection relays for standard applications. Easy-to-use protective relays for Medium Voltage applications with fast delivery, ideal for Panel builders, Contractors and Partners to save time. From overcurrent to advanced protection, with Arc detection and Ethernet communication including IEC 61850

View Products
Sepam serie 40

Sepam serie 40

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Sepam serie 80

Sepam serie 80

Digital protection relays for current and voltage protection. Digital protection relays for current and voltage protection, for any distribution system.

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Vamp 200 Series

Vamp 200 Series

Complete protection and control managers for power systems . VAMP 200 series offers a comprehensive family of protection and control devices with complex measurement functions for the management of feeders, motors and capacitor banks. Models available: VAMP210, VAMP230, VAMP255, VAMP257, VAMP259, VAMP265, VAMP265M

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Rail Protection

A range of protection relays dedicated to railway applications for catenary, feeders and transformer applications. Offering high performance with field-proven experience for efficient protection of supplies and catenaries in a wide range of railway specific applications including autotransformer-fed (AT) systems.

MiCOM P436 and MiCOM P438

MiCOM P138

Directional Overcurrent Protection for Rail Applications. -

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MiCOM P436 and MiCOM P438

MiCOM P638

Rail Catenary Differential Protection Devices. -

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MiCOM P436 and MiCOM P438

MiCOM P436 and MiCOM P438

Rail Catenary Distance Protection Devices. -

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IEC 61850 Numerical Substation

IEC 61850, an international standard defining communication protocols, is applied in modern protection relays, RTUs, and substation automation schemes. This allows for the implementation of distributed and multi-vendor applications inside electrical substations and part of Smart Grid architectures worldwide.

Non-Conventional Instrument Transformers (IEC 61850-9.2)

Non-Conventional Instrument Transformers (IEC 61850-9.2)

Sensors, Merging Units, Protection Relays and Turnkey Schemes. -

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