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Beckhoff BK3120 Profibus Bus Coupler for industrial automation systems

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Beckhoff BK3120

by Beckhoff

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OverviewThe Beckhoff BK3120 Profibus Bus Coupler provides a vital link between Beckhoff Bus Terminals and Profibus networks, facilitating efficient and rapid data exchange. This bus coupler ensures smooth integration of your I/O modules into existing or new Profibus-based automation systems. Engineered for reliability and consistent performance, the BK3120 enhances operational connectivity and streamlines communication. Its robust build guarantees durability in harsh industrial settings, while its compact footprint maximizes space within control panels. The BK3120's modular expansion capabilities allow for easy system scaling to meet evolving operational demands, making it suitable for a wide range of applications in manufacturing, robotics, and complex process automation.Key Features Dedicated Profibus Connectivity: Establishes a dependable connection between Beckhoff Bus Terminals and Profibus networks, ensuring optimal system compatibility. Rapid Communication: Designed for quick and reliable data exchange, reducing latency and boosting responsiveness in automation processes. Modular and Scalable Design: Supports straightforward integration of numerous I/O extensions, enabling flexible system configurations and future-proof growth. Intuitive LED Indicators: Offers immediate, real-time status monitoring for fast identification and resolution of operational issues, thereby minimizing downtime. Compact Form Factor: Its optimized size is ideal for efficient installation in control panel enclosures where space is limited. Seamless Beckhoff I/O Compatibility: Guarantees full compatibility and simple integration with the extensive range of Beckhoff I/O systems, creating a synchronized and high-performing automation solution. Technical Specifications Model: BK3120 Fieldbus Interface: Profibus I/O Connection: Beckhoff Bus Terminals Transmission Rate: Up to 12 Mbit/s Addressing: Set via DIP switch Power Supply: 24V DC Mounting Type: DIN Rail Protection Rating: IP20 Operating Temperature: -25°C to 60°C (-13°F to 140°F) Applications Industrial Automation & Machine Control Enables accurate I/O communication across various industrial environments, improving efficiency and precision in automated machinery. SCADA & PLC Integration Fully compatible with Beckhoff controllers and a broad selection of third-party devices, supporting comprehensive system integration for supervisory control and data acquisition. Manufacturing & Process Automation Ensures stable and reliable Profibus connectivity vital for the smooth operation of production lines and intricate process automation systems. Robotics & Motion Control Supports the demanding requirements of fast Profibus communication crucial for precise and responsive robotics and motion control applications. Material Handling & Logistics Significantly enhances the performance of automated material handling and logistics systems, optimizing efficiency and throughput. Why ChooseOpting for the Beckhoff BK3120 Profibus Bus Coupler means investing in proven performance and exceptional reliability for your industrial automation needs. This model stands out by providing truly high-speed Profibus communication, ensuring efficient and dependable data flow across your network. Its compact, robust, and space-saving design is not only practical for installation within confined control cabinets but also reflects its durable engineering, built to withstand the rigors of industrial settings. Furthermore, the BK3120 is remarkably easy to install and expand, integrating seamlessly with Beckhoff's modular I/O systems, which simplifies system setup and allows for future growth without extensive reconfiguration.Order NowEnhance your industrial automation system with the Beckhoff BK3120 Profibus Bus Coupler. Contact us today to place your order or learn more about its capabilities.FAQWhat is the primary function of the Beckhoff BK3120?The Beckhoff BK3120 serves as a bridge, connecting Beckhoff Bus Terminals to Profibus networks, enabling high-speed data exchange for industrial automation.What is the maximum data transmission rate for the BK3120?The BK3120 Profibus Bus Coupler supports a maximum data transmission rate of up to 12 Mbit/s.Can the BK3120 be used in demanding industrial environments?Yes, its robust construction and operating temperature range of -25°C to 60°C make it suitable for harsh industrial settings.Is the Beckhoff BK3120 compatible with other Beckhoff I/O systems?Absolutely, the BK3120 is designed for seamless integration and full compatibility with the extensive range of Beckhoff I/O systems.How is addressing configured on the BK3120?Addressing for the BK3120 is conveniently adjusted via DIP switches.

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$321.00
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PRODUCT DETAILS

Beckhoff BK3120

Overview

This is a genuine Beckhoff component from the Bus Terminals (KL) family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Beckhoff catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Beckhoff automation ecosystem
  • Engineered to integrate inside Bus Terminals (KL) installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Beckhoff equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Beckhoff catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Beckhoff platform with documented conversion notes for the Bus Terminals (KL) family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: BK3120
  • Fieldbus Interface: Profibus
  • I/O Connection: Beckhoff Bus Terminals
  • Transmission Rate: Up to 12 Mbit/s
  • Addressing: Set via DIP switch
  • Power Supply: 24V DC
  • Mounting Type: DIN Rail
  • Protection Rating: IP20
  • Operating Temperature: -25°C to 60°C (-13°F to 140°F)

Applications

  • Industrial Automation & Machine Control

    Enables accurate I/O communication across various industrial environments, improving efficiency and precision in automated machinery.

  • SCADA & PLC Integration

    Fully compatible with Beckhoff controllers and a broad selection of third-party devices, supporting comprehensive system integration for supervisory control and data acquisition.

  • Manufacturing & Process Automation

    Ensures stable and reliable Profibus connectivity vital for the smooth operation of production lines and intricate process automation systems.

  • Robotics & Motion Control

    Supports the demanding requirements of fast Profibus communication crucial for precise and responsive robotics and motion control applications.

  • Material Handling & Logistics

    Significantly enhances the performance of automated material handling and logistics systems, optimizing efficiency and throughput.

Why Choose the BK3120?

Opting for the Beckhoff BK3120 Profibus Bus Coupler means investing in proven performance and exceptional reliability for your industrial automation needs. This model stands out by providing truly high-speed Profibus communication, ensuring efficient and dependable data flow across your network. Its compact, robust, and space-saving design is not only practical for installation within confined control cabinets but also reflects its durable engineering, built to withstand the rigors of industrial settings. Furthermore, the BK3120 is remarkably easy to install and expand, integrating seamlessly with Beckhoff's modular I/O systems, which simplifies system setup and allows for future growth without extensive reconfiguration.

Availability & Shipping

  • In stock: BK3120 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every BK3120 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Beckhoff

The Beckhoff BK3120 serves as a bridge, connecting Beckhoff Bus Terminals to Profibus networks, enabling high-speed data exchange for industrial automation.

Machine down? We ship parts the same day.

New, surplus, and refurbished Beckhoff inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

CUSTOMER REVIEWS

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Independent Supplier Notice

PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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