During technical comparisons, BK5151 appears alongside Beckhoff Bk5200, Beckhoff Bk9105 and Beckhoff Bk9000 so engineers assess signal types, ingress protection, and ambient tolerances accurately.
BK5151 - Beckhoff EtherCAT Bus Couplers
BK5151 Beckhoff EtherCAT Bus Couplers Technical Specifications
| Brand | Beckhoff |
| Product Type | EtherCAT Bus Couplers |
| Product | BK5151 |
BK5151 Beckhoff EtherCAT Bus Couplers Technical Specifications
| Specification | Value |
|---|---|
| Number of Bus Terminals | 64 (255 with K-bus extension) |
| Max. number of bytes fieldbus | 16 Tx/Rx PDOs |
| Data transfer rates | automatic detection up to 1 Mbaud |
| Bus interface | D-sub 9-pin socket |
| Data transfer medium | screened, twisted copper cable, 2 x signal, 1 x ground (recommended) |
| Power supply | 24 V DC (-15%/+20%) |
| Recommended fuse | ≤ 10 A |
| Current supply K-bus | 1750 mA |
| Weight | approx. 100 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 |
| Ex marking | ATEX:Â Â II 3G Ex ec IIC T4 GcIECEx:Â Â Ex ec IIC T4 Gc |
| Housing - Design form | compact terminal housing with signal LEDs |
| Housing - Material | polycarbonate |
| Housing - Dimensions (W x H x D) | 44 mm x 100 mm x 68 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 |
| Number of PDOs (CANopen) | 16 Tx/Rx PDOs |
| Additional CANopen features | life, node guarding, emergency object, variable mapping, store/restore |
| PDO modes | synchron, cyclic, event driven, polling |
| Serial interface | configuration interface |
| Diagnostics LED | 2 x power supply, 2 x K-bus, 2 x fieldbus |
