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BK5220 - Beckhoff EtherCAT Bus Couplers
Beckhoff Bus Coupler BK5220 provides seamless connection between fieldbus systems and Bus Terminals, ensuring efficient data exchange for industrial automation networks.
| Brand | Beckhoff |
| Product Type | EtherCAT Bus Couplers |
| Product | BK5220 |
BK5220 Beckhoff EtherCAT Bus Couplers Technical Specifications
| Specification | Value |
|---|---|
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Max. number of bytes fieldbus | 512 byte input and 512 byte output |
| Configuration possibility | via KS2000 or the controller |
| Data transfer rates | automatic detection |
| Bus interface | 1 x open pluggable connector, 5-pin, included |
| Data transfer medium | screened, twisted copper wire with power supply, 5-pin |
| Power supply | 24 V DC (-15%/+20%), through bus cable 11รขยยฆ25ร V (conforms to DeviceNetรยฎspecification) |
| Input current | 70 mA + (total K-bus current)/4, 500ร mA max. |
| Starting current | approx. 2.5 x continuous current |
| Recommended fuse | โค 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 Bus Coupler) |
| Weight | approx. 130 g |
| Operating temperature | -25...+60ยฐC |
| Storage temperature | -40...+85ยฐC |
| 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 mmยฒ,st*: 0.08...2.5 mmยฒ,f*: 0.14...1.5 mmยฒ |
| Housing - Stripping length | 8...9 mm |
| Housing - Current load power contacts | Imax: 10 A |
| Digital peripheral signals | 1,020 inputs/outputs |
| Analog peripheral signals | 256 inputs/outputs |
| Operating modes | bit strobe, polling, cyclic, change of state (COS) |
The Beckhoff BK5220 Bus Coupler is designed to combine robust connectivity and reliable performance in industrial automation systems. It supports up to 64 Bus Terminals, expandable to 255 with K-bus extension, making it highly scalable. The coupler handles 512 input and 512 output bytes for efficient communication and offers multiple operating modes including bit strobe, polling, cyclic, and change of state (COS). With a 24 V DC power supply and automatic detection of data transfer rates, it ensures consistent performance in demanding environments.
The unit features a 5-pin open pluggable connector with screened twisted copper wiring for secure transmission. It provides 1750 mA K-bus current supply, supports 1,020 digital signals and 256 analog signals, and delivers 500 V electrical isolation for safe operation. Compact in a 51 x 100 x 69 mm polycarbonate housing with diagnostic LEDs, the BK5220 installs easily on 35 mm DIN rails. Lightweight at 130 g, it offers rugged protection with IP20 rating, vibration resistance per EN 60068, and compliance with EN 61000 EMC standards. With global approvals such as CE, UL, ATEX, and IECEx, it is trusted for use in international industrial environments.
The BK5220 Bus Coupler is widely applied in factory automation, packaging machinery, robotics, and distributed process systems. Junior engineers benefit from its simple configuration via KS2000 or fieldbus controllers, while senior engineers appreciate its advanced CANopen features like node guarding, variable mapping, and emergency objects. Maintenance professionals rely on its durability, clear LED diagnostics, and reliable long-term operation. If you are looking for a dependable and scalable EtherCAT Bus Coupler for modern automation, the Beckhoff BK5220 is an excellent choice. Request a call back today to receive expert guidance tailored to your application.
