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Allen-Bradley 1788-FBJB4R FOUNDATION Fieldbus Junction Box

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Allen-Bradley 1788-FBJB4R

by Allen-Bradley

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OverviewOptimize the dependability and performance of your industrial automation system with the Allen-Bradley 1788-FBJB4R FOUNDATION Fieldbus Junction Box. This compact, 4-way junction box is specifically engineered for robust operations, streamlining FOUNDATION Fieldbus H1 network installations. It provides vital support for redundant trunk connections, guaranteeing maximum operational continuity and data integrity for critical process control. By expertly segmenting your Fieldbus H1 connections, the 1788-FBJB4R simplifies intricate field wiring, offering distinct spur connections for the smooth integration of multiple field devices. This not only improves network arrangement but also substantially reduces setup time and potential points of failure, paving the way for a more adaptable and expandable industrial communication setup.Key Features Dedicated 4-Way FOUNDATION Fieldbus H1 Junction: Precisely manages and directs FOUNDATION Fieldbus H1 network segments to as many as four individual devices. Redundant Trunk Cabling Support: Ensures outstanding network availability and resilience against faults through dual trunk connections, which are crucial for mission-critical tasks. Optimized Field Wiring Layout: Facilitates neat, organized, and straightforward cable handling, minimizing troubleshooting efforts and boosting system upkeep. Compact Industrial Design: Featuring a small footprint, this junction box integrates effortlessly into existing control panels and confined industrial areas without requiring extensive modifications. Enhanced Reliability in Harsh Environments: Manufactured to Allen-Bradley's stringent specifications, ensuring unwavering performance and longevity even in challenging industrial conditions. Reduced Wiring Complexity: Transforms complicated wiring configurations into manageable connections, simplifying installation processes and lessening potential errors in the field. Flexible Mounting Options: Designed for versatile installation, accommodating both panel and DIN rail mounting to suit diverse enclosure requirements. Technical Specifications Brand: Allen-Bradley Series: Bulletin 1788 Part Number: 1788-FBJB4R Function: FOUNDATION Fieldbus junction box Spur Ports: 4 Trunk Connections: Dual (redundant) Wiring Type: Fieldbus H1 topology Mounting Type: Panel or DIN rail Enclosure Type: Open or enclosure-ready Condition: New Applications FOUNDATION Fieldbus Segment Branching: Ideal for creating efficient and well-organized branches within your Fieldbus H1 network, extending connectivity to various devices. Redundant Fieldbus Topologies: Essential for implementing high-availability network architectures where continuous operation is paramount, minimizing downtime risks. Process Industries: Perfectly suited for sectors like oil & gas, petrochemical, and water treatment plants, where robust and reliable communication is non-negotiable. Distributed Control Systems (DCS): Seamlessly integrates with DCS environments, enabling effective communication and control across distributed I/O networks. Industrial Automation Field Wiring: A cornerstone component for optimizing and simplifying the physical wiring infrastructure in diverse industrial automation setups. Harnessing Complex Installations: Streamlines the routing and connection of field devices in intricate and large-scale industrial projects. Why ChooseOpt for this model to experience unparalleled benefits for your industrial automation framework. Allen-Bradley's legacy of quality and engineering excellence means you're investing in a trusted component for your critical network infrastructure. The inclusion of dual trunk connections provides an essential safeguard, enhancing network redundancy and fault tolerance to shield your operations from unexpected interruptions. Furthermore, its intelligent design contributes to significantly reduced wiring complexity, leading to quicker deployment and more straightforward ongoing maintenance. The compact size of this unit ensures efficient use of space, allowing for seamless integration into existing panel layouts.Order NowUpgrade your industrial network infrastructure today with the Allen-Bradley 1788-FBJB4R FOUNDATION Fieldbus Junction Box. Ensure reliable, efficient, and redundant communication for your critical applications. Contact us for pricing and availability to seamlessly integrate this essential component into your system.FAQWhat is the primary function of the Allen-Bradley 1788-FBJB4R?The Allen-Bradley 1788-FBJB4R is designed to serve as a FOUNDATION Fieldbus junction box, efficiently managing and distributing FOUNDATION Fieldbus H1 network segments to multiple devices.How many devices can connect to this junction box?This model features 4 spur ports, allowing for the connection of up to four individual field devices.Does this junction box support redundant network connections?Yes, the 1788-FBJB4R includes dual trunk connections, providing robust support for redundant trunk cabling to ensure high network availability and fault tolerance.What types of environments is this product suitable for?Built to Allen-Bradley's rigorous standards, this junction box is suitable for demanding industrial environments in process industries such as oil & gas, petrochemical, and water treatment plants.What are the mounting options available for the 1788-FBJB4R?This junction box is designed for versatile installation, accommodating both panel and DIN rail mounting to suit various enclosure requirements.

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PRODUCT DETAILS

Allen-Bradley 1788-FBJB4R

Overview

This is a genuine Allen-Bradley component. 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 Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley 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 Allen-Bradley 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 Allen-Bradley platform with documented conversion notes

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

Technical Specifications

  • Brand: Allen-Bradley
  • Series: Bulletin 1788
  • Part Number: 1788-FBJB4R
  • Function: FOUNDATION Fieldbus junction box
  • Spur Ports: 4
  • Trunk Connections: Dual (redundant)
  • Wiring Type: Fieldbus H1 topology
  • Mounting Type: Panel or DIN rail
  • Enclosure Type: Open or enclosure-ready
  • Condition: New

Applications

  • FOUNDATION Fieldbus Segment Branching: Ideal for creating efficient and well-organized branches within your Fieldbus H1 network, extending connectivity to various devices.
  • Redundant Fieldbus Topologies: Essential for implementing high-availability network architectures where continuous operation is paramount, minimizing downtime risks.
  • Process Industries: Perfectly suited for sectors like oil & gas, petrochemical, and water treatment plants, where robust and reliable communication is non-negotiable.
  • Distributed Control Systems (DCS): Seamlessly integrates with DCS environments, enabling effective communication and control across distributed I/O networks.
  • Industrial Automation Field Wiring: A cornerstone component for optimizing and simplifying the physical wiring infrastructure in diverse industrial automation setups.
  • Harnessing Complex Installations: Streamlines the routing and connection of field devices in intricate and large-scale industrial projects.

Why Choose the 1788-FBJB4R?

Opt for this model to experience unparalleled benefits for your industrial automation framework. Allen-Bradley's legacy of quality and engineering excellence means you're investing in a trusted component for your critical network infrastructure. The inclusion of dual trunk connections provides an essential safeguard, enhancing network redundancy and fault tolerance to shield your operations from unexpected interruptions. Furthermore, its intelligent design contributes to significantly reduced wiring complexity, leading to quicker deployment and more straightforward ongoing maintenance. The compact size of this unit ensures efficient use of space, allowing for seamless integration into existing panel layouts.

Availability & Shipping

  • In stock: 1788-FBJB4R 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 1788-FBJB4R ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The Allen-Bradley 1788-FBJB4R is designed to serve as a FOUNDATION Fieldbus junction box, efficiently managing and distributing FOUNDATION Fieldbus H1 network segments to multiple devices.

Machine down? We ship parts the same day.

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

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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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