The Mikro X20 Earth Fault Relay offers a reliable and intelligent solution to safeguard electrical systems from damaging earth faults. Designed with modern protection requirements in mind, the X20 combines advanced functionality, flexible operation, and seamless integration in one compact device.
At its core, the X20 provides both Definite-Time and IDMT (Inverse Definite Minimum Time) protection, ensuring fast and precise fault detection tailored to system requirements. Its dual setting groups allow users to pre-configure two independent protection profiles, enabling quick switching during maintenance, system upgrades, or varying load conditions—without the need for reprogramming.
What sets the X20 apart is its robust event logging with timestamps, providing clear, time-stamped records of faults and trip events for simplified troubleshooting and improved system reliability. The built-in RS-485 Modbus-RTU communication ensures effortless integration with SCADA, Building Management Systems (BMS), and other remote monitoring platforms.
To enhance operational stability, the X20 incorporates harmonic blocking and inrush current detection, effectively minimizing nuisance tripping caused by load fluctuations or equipment start-up. Its wide auxiliary voltage range (85–265V AC / 110–370V DC) and compact DIN-rail mounting make it suitable for a wide range of industrial and commercial applications.
With compliance to IEC 60255 standards, the X20 delivers reliable, standards-compliant earth fault protection, offering system operators peace of mind, reduced downtime, and improved safety—all in a cost-effective, user-friendly package.