Maintenance teams planning replacements for EK1100 frequently review Beckhoff Ek1122, Beckhoff Ek1100 and Beckhoff Ek1501 to prevent downtime, checking availability and compatibility with existing systems.
EK1100 - Beckhoff EtherCAT Coupler
Beckhoff EK1100 EtherCAT Coupler links EtherCAT Terminals to 100BASE-TX networks, delivering scalable, high-speed communication for industrial automation systems.

| Brand | Beckhoff |
| Product Type | EtherCAT Coupler |
| Product | EK1100 |
EK1100 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 |
| Power supply | 24 V DC (-15%/+20%) |
| Current consumption from U S | 70 mA + (â E-bus current/4) |
| Current consumption from U P | load |
| Current supply E-bus | 2000 mA |
| Power contacts | max. 24 V DC/max. 10 A |
| Electrical isolation | 500 V (power contact/supply voltage/Ethernet) |
| 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, CCC, UL, ATEX, IECEx, DNV GL, cFMus |
| Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc cFMus: Class I, Division 2, Groups A, B, C, D Class I, Zone 2, AEx ec IIC T4 Gc |
The Beckhoff EK1100 EtherCAT Coupler is designed to connect EtherCAT Terminals (ELxxxx series) directly into 100BASE-TX networks with outstanding precision. Supporting up to 65,534 terminals, it ensures virtually unlimited expansion options. With a 24 V DC power supply, an E-bus current of 2000 mA, and 500 V electrical isolation, this model provides both power and safety for mission-critical automation.
Featuring dual RJ45 interfaces, data transfer rates of 100 Mbit/s, and a low internal delay of around 1 µs, the EK1100 Coupler is optimized for real-time communication. Its rugged IP20 housing, vibration resistance tested to EN 60068, and EMC compliance with EN 61000-6-2/6-4 guarantee stable operation even in harsh industrial settings. Certified with CE, UL, ATEX, IECEx, CCC, and DNV GL, it is widely trusted across industries including oil & gas, power, and manufacturing.
Applications of the EK1100 EtherCAT Coupler include production lines, robotics, and process automation where high-speed data exchange and modular I/O integration are essential. With compatibility for shielded Cat.5 cabling up to 100 m and reliable operation between -25°C to +60°C, it offers engineers both flexibility and assurance. This makes the Beckhoff EK1100 a preferred choice for modern automation systems using EtherCAT Terminals and EtherCAT Couplers.







