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Beckhoff BK3150 – Overview
The Beckhoff BK3150 is a compact bus coupler designed for the PROFIBUS fieldbus system, integrating with the Beckhoff Bus Terminal architecture. It supports connection of up to 64 Bus Terminals (up to 255 with K-bus extension) and provides automatic baud rate detection up to 12 Mbaud. Optimised for dense installations and industrial automation environments.
Key Features
-
Supports connection of up to 64 Bus Terminals (255 with K-bus extension)
-
Max. fieldbus data: 128 bytes input + 128 bytes output
-
Automatic baud rate detection up to 12 Mbaud
-
Standard D-sub 9-pin interface for PROFIBUS connection
-
Compact housing for efficient installation in control cabinets
-
Power supply 24 V DC, K-bus current supply up to 1750 mA
-
Electrical isolation of 500 V between power contact / supply / fieldbus
-
Robust industrial design, mounting on 35 mm DIN-rail
Technical Specifications
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Part Number: BK3150
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Number of Bus Terminals: 64 (255 when K-bus extension used)
-
Max. Data Bytes (Fieldbus): 128 bytes input, 128 bytes output
-
Bus Interface: 1 × D-sub 9-pin
-
Data Transfer Rate: Automatic detection, up to 12 Mbaud
-
Power Supply: 24 V DC (-15 % / +20 %)
-
Input Current: 70 mA + (total K-bus current)/4, max 500 mA
-
Current Supply for K-bus: 1750 mA
-
Power Contacts: max. 24 V DC / max. 10 A
-
Electrical Isolation: 500 V (power contact / supply voltage / fieldbus)
-
Dimensions (W × H × D): 44 mm × 100 mm × 68 mm
-
Weight: Approx. 100 g
-
Operating Temperature: -25 °C … +60 °C
-
Storage Temperature: -40 °C … +85 °C
-
Protection Rating: IP20
-
Approvals / Markings: CE, CCC, UL, ATEX, IECEx
-
Manufacturer: Beckhoff Automation
-
Packed weight/dimensions: 0.10 – 0.23 kg (0.22 – 0.50 lb) | 12 × 7 × 6 cm (4.7 × 2.8 × 2.4 in)
Applications
-
Integration of Beckhoff Bus Terminals into PROFIBUS networks
-
Compact machine control cabinets where space is limited
-
Distributed I/O architectures requiring fieldbus connectivity
-
Industrial automation systems using PROFIBUS DP for device communication
Why Choose Beckhoff BK3150
-
High flexibility in connecting up to 255 Bus Terminals via K-bus extension
-
Wide fieldbus data bandwidth (128 bytes in/out) for comprehensive I/O usage
-
Proven industrial design with extensive approvals and wide temperature range
-
Efficient integration into compact control panels thanks to slim housing
-
Beckhoff’s longstanding reliability in automation environments
Order Now
The Beckhoff BK3150 PROFIBUS Compact Bus Coupler is available for order and ships worldwide.
Description
Beckhoff BK3150 – Overview
The Beckhoff BK3150 is a compact bus coupler designed for the PROFIBUS fieldbus system, integrating with the Beckhoff Bus Terminal architecture. It supports connection of up to 64 Bus Terminals (up to 255 with K-bus extension) and provides automatic baud rate detection up to 12 Mbaud. Optimised for dense installations and industrial automation environments.
Key Features
-
Supports connection of up to 64 Bus Terminals (255 with K-bus extension)
-
Max. fieldbus data: 128 bytes input + 128 bytes output
-
Automatic baud rate detection up to 12 Mbaud
-
Standard D-sub 9-pin interface for PROFIBUS connection
-
Compact housing for efficient installation in control cabinets
-
Power supply 24 V DC, K-bus current supply up to 1750 mA
-
Electrical isolation of 500 V between power contact / supply / fieldbus
-
Robust industrial design, mounting on 35 mm DIN-rail
Technical Specifications
-
Part Number: BK3150
-
Number of Bus Terminals: 64 (255 when K-bus extension used)
-
Max. Data Bytes (Fieldbus): 128 bytes input, 128 bytes output
-
Bus Interface: 1 × D-sub 9-pin
-
Data Transfer Rate: Automatic detection, up to 12 Mbaud
-
Power Supply: 24 V DC (-15 % / +20 %)
-
Input Current: 70 mA + (total K-bus current)/4, max 500 mA
-
Current Supply for K-bus: 1750 mA
-
Power Contacts: max. 24 V DC / max. 10 A
-
Electrical Isolation: 500 V (power contact / supply voltage / fieldbus)
-
Dimensions (W × H × D): 44 mm × 100 mm × 68 mm
-
Weight: Approx. 100 g
-
Operating Temperature: -25 °C … +60 °C
-
Storage Temperature: -40 °C … +85 °C
-
Protection Rating: IP20
-
Approvals / Markings: CE, CCC, UL, ATEX, IECEx
-
Manufacturer: Beckhoff Automation
-
Packed weight/dimensions: 0.10 – 0.23 kg (0.22 – 0.50 lb) | 12 × 7 × 6 cm (4.7 × 2.8 × 2.4 in)
Applications
-
Integration of Beckhoff Bus Terminals into PROFIBUS networks
-
Compact machine control cabinets where space is limited
-
Distributed I/O architectures requiring fieldbus connectivity
-
Industrial automation systems using PROFIBUS DP for device communication
Why Choose Beckhoff BK3150
-
High flexibility in connecting up to 255 Bus Terminals via K-bus extension
-
Wide fieldbus data bandwidth (128 bytes in/out) for comprehensive I/O usage
-
Proven industrial design with extensive approvals and wide temperature range
-
Efficient integration into compact control panels thanks to slim housing
-
Beckhoff’s longstanding reliability in automation environments
Order Now
The Beckhoff BK3150 PROFIBUS Compact Bus Coupler is available for order and ships worldwide.