Schneider Electric Easergy MiCOM P439 Numerical Distance Protection Relay
Schneider Electric Easergy MiCOM P439 Numerical Distance Protection Relay is designed for the protection, control and monitoring of medium, high and extra-high voltage transmission and distribution networks. It combines distance protection with bay control and communication functions, allowing utilities and industrial users to manage line protection and substation operations from a single relay.
The MiCOM P439 offers a broad range of protection functions for detecting short circuits, earth faults and overload conditions. Along with dependable fault protection, it supports bay control for multiple switchgear devices, helping reduce the number of separate devices required in a protection panel. This makes engineering, installation and maintenance more straightforward, particularly in modern substations.
The relay also supports a wide range of communication protocols, making integration with SCADA and substation automation systems simple. Its modular construction, flexible mounting options and detachable HMI allow the MiCOM P439 to fit both new installations and retrofit projects where reliability and operational flexibility are important.
Specifications
- Manufacturer: Schneider Electric
- Product Family: Easergy MiCOM
- Model: MiCOM P439
- Relay Type: Numerical Distance Protection Relay
- Protection Application: Distance protection for transmission and distribution networks
- Suitable For: Medium, high and extra-high voltage power systems
- Distance Protection: Yes
- Short Circuit Protection: Yes
- Earth Fault Protection: Yes
- Overload Protection: Yes
- Bay Control: Supports control of up to 10 switchgear devices
- Bay Templates: More than 300 predefined bay templates
- Design: Modular relay platform
- Case Size: 4U, 40TE or 84TE
- Mounting Options: Panel, rack or surface mounting
- Wiring Connections: Ring or pin terminals
- Human Machine Interface: Detachable HMI
- Communication Interfaces: Serial and Ethernet
- Communication Protocols: IEC 61850, IEC 60870-5-101, IEC 60870-5-103, Courier, DNP and Modbus
- Compact Variant: MiCOM P430C
Features
- Numerical distance protection relay for transmission and distribution applications.
- Protects against short circuits, earth faults and overload conditions.
- Combines protection, bay control and monitoring in one relay.
- Supports control of up to 10 switchgear devices.
- Includes more than 300 predefined bay templates for quicker engineering.
- Modular design allows flexible installation and future expansion.
- Integrates with SCADA and IEC 61850 substation automation systems.
- Detachable HMI improves operator safety and local access.
- Supports both serial and Ethernet communication.
Applications
- Transmission line protection
- Distribution network protection
- Medium-voltage substations
- High-voltage substations
- Extra-high-voltage transmission systems
- Utility power networks
- Industrial power distribution systems
- Bay control applications
- Substation automation projects
Schneider Electric Easergy MiCOM P439 Numerical Distance Protection Relay combines line protection, bay control and communication in one platform, making it suitable for power systems that require reliable protection together with efficient substation automation and operational control.
