BK9105 - Beckhoff EtherCAT Bus Couplers
Beckhoff BK9105 EtherCAT Bus Couplers deliver reliable network-to-I/O connectivity, offering scalable and high-performance solutions for industrial automation.
| Brand | Beckhoff |
| Product Type | EtherCAT Bus Couplers |
| Product | BK9105 |
BK9105 Beckhoff EtherCAT Bus Couplers Technical Specifications
| Specification | Value |
|---|---|
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Max. number of bytes fieldbus | 492 byte input and 492 byte output |
| Configuration possibility | via KS2000 |
| Data transfer rates | 10/100 Mbit/s, automatic recognition of the transmission rate |
| Bus interface | 2 x RJ45 (2-channel switch) |
| Data transfer medium | 4 x 2 twisted pair copper cable; category 3 (10 Mbit/s), category 5 (100 Mbit/s) |
| Power supply | 24 V DC (-15%/+20%) |
| Input current | 70 mA + (total K-bus current)/4, 500Â mA max. |
| Starting current | 2.5 x continuous current |
| Recommended fuse | ≤ 10 A |
| Current supply K-bus | 1750 mA |
| Power contacts | max. 24 V DC/max. 10 A |
| Electrical isolation | 500 V (power contact/supply voltage/fieldbus) |
| Distance between stations | 100 m between hub/switch and bus coupler or between bus coupler and bus coupler |
| Weight | approx. 170 g |
| Operating temperature | -25...+60°C |
| Storage temperature | -40...+85°C |
| Relative humidity | 95%, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, CCC, UL, ATEX, IECEx, DNV GL |
| Ex marking | ATEX: II 3 G Ex ec IIC T4 GcIECEx: Ex ec IIC T4 Gc |
| Housing - Design form | compact terminal housing with signal LEDs |
| Housing - Material | polycarbonate |
| Housing - Dimensions (W x H x D) | 51 mm x 100 mm x 69 mm |
| Housing - Installation | on 35 mm DIN rail, conforming to EN 60715 with lock |
| Housing - Side by side mounting by means of | double slot and key connection |
| Housing - Marking | labeling of the BZxxxx series |
| Housing - Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver |
| Housing - Connection cross-section | s*: 0.08...2.5 mm²,st*: 0.08...2.5 mm²,f*: 0.14...1.5 mm² |
| Housing - Stripping length | 8...9 mm |
| Housing - Current load power contacts | Imax: 10 A |
| Digital peripheral signals | 3,936 inputs/outputs |
| Analog peripheral signals | 122 inputs/outputs |
| Protocol | EtherNet/IP⢠|
| Topology | line or star wiring |
| Cascading | up to 20 BK9105 or max. line length 2 km |
Beckhoff BK9105 EtherCAT Bus Couplers support 64 terminals, expandable to 255 with K-bus, ensuring scalable I/O integration. With 10/100 Mbit/s auto-recognition, 2 RJ45 ports, and 500 V isolation, they deliver reliable data exchange. Compact polycarbonate housing, IP20 protection, and wide temperature tolerance guarantee durability for industrial use.
Beckhoff BK9105 EtherCAT Bus Couplers offer advanced connectivity with support for up to 64 bus terminals, expandable to 255 with K-bus extension. With 10/100 Mbit/s data transfer rates and 2 RJ45 ports, they provide fast, stable communication for industrial networks. Operating on a 24 V DC power supply, the unit ensures safe isolation of 500 V and complies with EN 61000 EMC standards. Its compact polycarbonate housing, IP20 protection, and durability in temperatures from -25°C to +60°C make it suitable for harsh environments. Supporting 3,936 digital and 122 analog signals, the coupler is trusted for robust performance across automation and control systems.
Applications of the BK9105 Beckhoff EtherCAT Bus Couplers span across automation sectors such as automotive assembly, packaging lines, robotics, process industries, and smart manufacturing units. Maintenance engineers value its easy DIN rail installation and intuitive KS2000 configuration software, which reduces setup time. For students and junior engineers, the product serves as a reliable introduction to industrial networking principles. Its robust design, real-time communication, and compatibility with large I/O systems make it especially useful in plants where uptime and scalability are critical. If you need a dependable solution that bridges EtherCAT networks with field I/O while offering long-term reliability, the BK9105 EtherCAT Bus Coupler is engineered to deliver. Request a call back today to explore how this model can optimize your automation projects.
