The X30 Combined Overcurrent and Earth Fault Relay is a sophisticated numerical protection relay designed to deliver reliable and intelligent protection for electrical systems. Suitable for both three-phase three-wire and four-wire configurations, it consolidates multiple protection functions into a single, compact unit. This makes it an ideal solution for modern industrial, commercial, and utility power networks where space, efficiency, and performance are critical. At its core, the X30 provides robust protection against phase overcurrent, earth faults, and thermal overloads. It features programmable inverse definite minimum time (IDMT) curves, including NI, VI, EI, and LTI, to suit various system requirements. Additional capabilities include trip circuit supervision, circuit breaker failure protection, and thermal overload monitoring. The relay also supports RS485 MODBUS-RTU communication, enabling seamless integration with SCADA systems and remote monitoring platforms. The X30 is equipped with four programmable digital inputs and four output contacts, allowing flexible configuration for diverse applications. Its LCD interface offers intuitive navigation, while its event, fault, and alarm logging, up to 250 timestamped records, supports proactive diagnostics and maintenance. The device complies with international standards including IEC 60255 for protection relays, as well as IEC 61000-6-2 and IEC 61000-6-4 for electromagnetic compatibility, ensuring reliable performance even in electrically noisy environments. Designed for electrical engineers, facility managers, and system integrators, the X30 serves as a dependable solution for safeguarding critical infrastructure. Its compact design, advanced protection features, and standards compliance make it a strong candidate for MySTI certification and a valuable asset in any high-demand power distribution setting.
The X30 combines multiple protection functions, including three-phase overcurrent, two-stage earth fault, thermal overload, and circuit breaker failure protection into a single compact device. This eliminates the need for multiple relays, reducing panel space, wiring complexity, and installation time.
Equipped with detailed fault and event recording capabilities, the X30 stores logs with precise timestamps. This enables fast root-cause analysis, supports predictive maintenance, and improves system reliability by giving operators full visibility into fault history and system behaviour.
With built-in RS485 MODBUS-RTU communication, the X30 seamlessly integrates into SCADA and automation systems. This allows for real-time monitoring, remote configuration, and centralized control, making it ideal for smart grid environments and modern industrial facilities.
The X30 features programmable logic that lets users tailor protection schemes to specific operational needs. Whether for industrial plants, substations, or commercial buildings, its adaptability ensures optimal protection across diverse electrical setups.
Compliant with IEC 60255 and ANSI-coded protection functions, the X30 meets international standards for safety and reliability. Its intuitive LCD interface and compact form factor make it easy to install, configure, and operate. Perfect for both new installations and retrofit projects.