BK5120 - Beckhoff EtherCAT Bus Couplers

The Beckhoff BK5120 Bus Coupler combines compact design with powerful performance, supporting up to 64 Bus Terminals, expandable to 255 with K-bus extension. It operates on a 24 V DC supply with a maximum input current of 500 mA, offering stable connectivity through a 5-pin open style connector. The device ensures 500 V electrical isolation between supply voltage and power contacts, enhancing safety in industrial automation. Supporting 16 Tx and 16 Rx PDOs, the BK5120 is fully compatible with CANopen features such as node guarding, emergency objects, and variable mapping.

With a 1750 mA K-bus current supply, it can manage 960 digital signals and 60 analog signals across distributed I/O. Designed for durability, it features a polycarbonate housing with clear signal LEDs, measures 51 x 100 x 69 mm, and installs easily on 35 mm DIN rails. Certified under CE, UL, ATEX, and IECEx, the coupler conforms to EN 61000 EMC standards and withstands vibration and shock per EN 60068. It performs reliably across ambient temperatures of -25°C to +60°C and offers an IP20 protection rating for variable installation positions.

The BK5120 Bus Coupler is trusted in applications such as factory automation, robotics, packaging machines, and process plants that demand stable bus communication and safe power distribution. Junior engineers appreciate its quick setup via KS2000 or controller-based configuration, while senior engineers rely on its high-speed data rates up to 1 Mbaud and proven field reliability. Maintenance teams value its ease of wiring, clear diagnostics, and compliance with global standards. If you need a scalable and durable EtherCAT Bus Coupler for complex industrial projects, the Beckhoff BK5120 is a proven choice. Request a call back today for expert guidance tailored to your requirements.