In sourcing discussions, EK1814 is often placed next to Beckhoff Ek1110 0008, Beckhoff Ek1122 and Beckhoff Ek1100 so procurement teams can align budgets and technical requirements effectively.
EK1814 - Beckhoff EtherCAT Coupler
Beckhoff EK1814 EtherCAT Coupler integrates EtherCAT Terminals with 100BASE-TX networks, delivering fast communication and reliable control for industrial automation.

| Brand | Beckhoff |
| Product Type | EtherCAT Coupler |
| Product | EK1814 |
EK1814 Beckhoff EtherCAT Coupler Technical Specifications
| Specification | Value |
|---|---|
| Task within EtherCAT system | coupling of EtherCAT Terminals (ELxxxx) to 100BASE-TX EtherCAT networks |
| Data transfer medium | Ethernet/EtherCAT cable (min. Cat.5), shielded |
| Distance between stations | max. 100 m (100BASE-TX) |
| Number of EtherCAT Terminals | up to 65,534 |
| Protocol | EtherCAT |
| Delay | approx. 1 µs |
| Data transfer rates | 100 Mbit/s |
| Bus interface | 2 x RJ45 |
| Current consumption from U S | 40 mA + load |
| Current consumption from U P | 100 mA + (â E-bus current/4) |
| Current supply E-bus | 1000 mA |
| Nominal voltage | 24 V DC (-15%/+20%) |
| Number of inputs | 4 |
| Load type | ohmic, inductive, lamp load |
| Max. output current | 0.5 A (short-circuit proof) per channel |
| Short-circuit current | typ. < 2 A |
| Reverse voltage protection | yes |
| Breaking energy | < 150 mJ/channel |
| Switching times | typ. T ON : 60 µs, typ. T OFF : 300 µs |
| Electrical isolation | 500 V (power contact/supply voltage/Ethernet), 500 V (E-bus/field potential) |
| Operating temperature | -25…+60°C |
| Storage temperature | -40…+85°C |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Relative humidity | 95%, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, UL |
The Beckhoff EK1814 EtherCAT Coupler serves as a high-performance interface between EtherCAT Terminals and standard 100BASE-TX networks. It supports up to 65,534 terminals, providing nearly unlimited expansion for modular automation setups. Operating with a 24 V DC power supply and an E-bus current of 1000 mA, the unit ensures stable power distribution while maintaining 500 V electrical isolation for system safety. Data transfer is achieved at 100 Mbit/s with minimal delay of about 1 µs, making it ideal for real-time applications.
Equipped with dual RJ45 interfaces and compliant with EMC standards EN 61000-6-2/6-4, the EK1814 ensures reliable communication in noisy industrial environments. Its rugged IP20 housing, reverse voltage protection, and short-circuit proof outputs (0.5 A per channel) make it a dependable choice for long-term operations. Approvals including CE and UL further reinforce its trustworthiness for global installations.
Applications of the EK1814 EtherCAT Coupler include production lines, robotics, packaging machines, and process control where high-speed communication and precise I/O handling are critical. With switching times of 60 µs (ON) and 300 µs (OFF), and support for ohmic, inductive, and lamp loads, it adapts to diverse industrial requirements. By combining durability, efficiency, and seamless expansion, the Beckhoff EK1814 has become a reliable solution for engineers using EtherCAT Terminals and EtherCAT Couplers in modern automation projects.







