During technical comparisons, BK1150 appears alongside Beckhoff Ek1110 0008, Beckhoff Ek1122 and Beckhoff Ek1100 so engineers assess signal types, ingress protection, and ambient tolerances accurately.
BK1150 - Beckhoff EtherCAT Coupler
Beckhoff BK1150 EtherCAT Coupler connects EtherCAT Terminals to Industrial Ethernet, offering reliable automation and flexible control for modern industries.

| Brand | Beckhoff |
| Product Type | EtherCAT Coupler |
| Product | BK1150 |
BK1150 Beckhoff EtherCAT Coupler Technical Specifications
| Specification | Value |
|---|---|
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Max. number of bytes fieldbus | 1024 byte input and 1024 byte output |
| Configuration possibility | via KS2000 or EtherCAT (ADS) |
| Data transfer medium | Industrial Ethernet cable (min. Cat.5), shielded |
| Distance between stations | 100 m (100BASE-TX) |
| Data transfer rates | 100 Mbit/s |
| Bus interface | 2 x RJ45 |
| Power supply | 24 V DC (-15%/+20%) |
| Current supply E-bus | 1750 mA |
| Input current | 70 mA + (total K-bus current)/4, 500Â mA max. |
| 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 |
| Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc |
| Dimensions (W x H x D) | 44 mm x 100 mm x 68 mm |
| Weight | approx. 110 g |
| Data transfer time | typ. 0.01 ms in the case of 10 modules for 32 bit inputs and outputs each (without K-bus run-time) |
The Beckhoff BK1150 EtherCAT Coupler is engineered to link up to 64 Bus Terminals, expandable to 255 with K-bus extension, making it highly scalable for industrial control tasks. It supports 1024 bytes of input and 1024 bytes of output data, ensuring smooth handling of large I/O volumes. Operating with 24 V DC supply and providing an E-bus current of 1750 mA, the unit delivers stable power distribution within complex automation environments.
Technical reliability is further assured by dual RJ45 Ethernet interfaces with 100 Mbit/s transfer rates and a maximum station distance of 100 meters. Electrical isolation of 500 V between power, supply, and Ethernet safeguards critical systems. With an operating range of -25°C to +60°C, vibration resistance per EN 60068, and approvals including CE, UL, ATEX, and IECEx, this model is designed for dependable use in demanding sectors like manufacturing, process plants, and utilities.
In application, the BK1150 EtherCAT Coupler allows seamless connection of digital and analog signals into high-speed automation networks. Engineers in automotive plants, packaging lines, and energy systems benefit from its fast response time of 0.01 ms with 10 modules. Its compact 44 × 100 × 68 mm design, IP20 protection, and robust current capacity of 24 V DC at 10 A make it a trusted component in modern control architectures. With scalability, safety compliance, and proven reliability, Beckhoff EtherCAT Terminals like the BK1150 strengthen industrial automation performance worldwide.







