The Beckhoff EL2622 is a 2-channel relay output EtherCAT Terminal designed for flexible switching of both AC and DC loads in industrial automation systems. With its robust relay technology, high switching capacity, and compact design, it provides an effective interface between low-voltage control systems and higher-voltage field devices.

Each of the two outputs is implemented as a make contact relay, allowing the EL2622 to directly control a wide variety of load types. Operating at nominal voltages of up to 230 V AC or 30 V DC, it bridges the gap between control logic signals and field-side actuators such as solenoids, contactors, signal lamps, and smaller motors. This versatility makes it suitable for diverse applications across machinery, building automation, and process systems.

The terminal delivers switching currents of up to 5 A per channel for ohmic loads, ensuring reliable operation for resistive devices such as heaters or incandescent lamps. For inductive loads, such as relays, coils, or solenoids, the EL2622 supports switching currents up to 2 A AC/DC per channel, offering strong flexibility for different application requirements. Its design also supports lamp loads, which typically present inrush currents, making it an adaptable choice for mixed systems.

For smaller control tasks, the terminal can reliably handle minimum loads as low as 10 mA at 5 V DC, ensuring dependable performance even with low-power devices. This wide operational range makes the EL2622 highly versatile, capable of managing both high-power and sensitive low-power switching needs.

Unlike some terminals, the EL2622 operates without power contacts, meaning the relay contacts are galvanically isolated from the internal terminal bus. This ensures safe separation between control logic and field-side voltages, protecting upstream systems and enhancing safety in critical environments.

Integration into an EtherCAT system is straightforward. As part of the Beckhoff EL terminal series, the EL2622 slots directly into modular EtherCAT racks, powered and controlled via the E-bus. This allows seamless communication with controllers using EtherCAT’s deterministic, high-speed protocol while minimising installation complexity.

In terms of diagnostics and operation, the EL2622 provides clear channel indication, supporting straightforward commissioning and troubleshooting. Engineers benefit from easy monitoring of relay status during both setup and live operation, which reduces downtime and maintenance costs.

In real-world use, the EL2622 is ideal for controlling lighting circuits, auxiliary devices, small motors, and safety-related actuators where galvanic isolation and flexible load switching are essential. Its combination of AC and DC switching capability, compact size, and modular EtherCAT integration make it a practical and reliable relay output solution.

In summary, the Beckhoff EL2622 is a robust 2-channel relay output terminal that delivers safe and versatile load control. With its 230 V AC / 30 V DC support, 5 A switching capacity, wide load compatibility, and EtherCAT integration, it provides engineers with a dependable and flexible component for modern automation systems.