EL3351 - Beckhoff EtherCAT Terminal Analog Input

The Beckhoff EL3351 EtherCAT Terminal Analog Input supports two inputs for full bridge technology, making it suitable for strain gauge and load cell applications. With configurable conversion times from 2.5 ms to 800 ms and up to 400 samples per second, it ensures accurate and fast data acquisition. The terminal provides a measurement error of less than ±0.1% at the default 50 Hz filter setting, allowing engineers to rely on consistent performance. Its compact polycarbonate housing measures 12 × 100 × 68 mm and installs easily on a 35 mm DIN rail, ensuring space efficiency in control cabinets.

Built for demanding industrial environments, the EL3351 is powered via the E-bus and consumes only 170 mA. It includes an integrated 5 V DC bridge supply and provides 500 V electrical isolation between the E-bus and signal voltage, enhancing safety. Operating in temperatures from 0°C to +55°C and humidity up to 95% without condensation, it maintains reliability even in tough conditions. The terminal also complies with vibration and shock standards (EN 60068-2-6/27) and meets EMC immunity and emission standards (EN 61000-6-2/4). Certified with CE, CCC, UL, ATEX, and IECEx approvals, it is trusted globally for its robust design and long-term stability.

In real-world use, the Beckhoff EL3351 EtherCAT Terminal is commonly deployed in weighing systems, packaging lines, and test benches where precise analog measurement is critical. It ensures smooth integration with automation platforms by offering pluggable wiring and synchronization with distributed clocks. Maintenance teams appreciate its rugged design and long-term reliability, while engineers benefit from the flexibility of adjustable sampling rates and compatibility with other Beckhoff EtherCAT Terminals. With its balance of performance, safety, and ease of integration, the EL3351 is a trusted choice for industries requiring accurate analog input measurement backed by Beckhoff engineering expertise.