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Allen-Bradley 1794-TBN Flex I/O Terminal Base mounted on a DIN rail

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Allen-Bradley 1794-TBN

by Allen-Bradley

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OverviewThe Allen-Bradley 1794-TBN is a robust Flex I/O Terminal Base designed to provide crucial electrical connectivity and secure housing for Allen-Bradley Flex I/O modules. This vital component offers exceptional adaptability, simplifying its incorporation into various control setups. It acts as the central hub for your industrial automation requirements, engineered for both operational efficiency and dependable performance in challenging settings.Key Features Four-Slot Capacity: Accommodates up to four Flex I/O modules, making it an excellent choice for control tasks requiring flexible I/O expansion in small to medium-sized applications. Adaptable Module Integration: Compatible with a wide array of digital, analog, and communication I/O modules, allowing for highly customized configurations to meet specific application needs. Simple DIN Rail Mounting: Engineered for quick and secure DIN rail installation, significantly cutting down on setup time and ensuring a stable presence within your control enclosures. Integrated Power Delivery: Efficiently distributes power to all connected I/O units, streamlining wiring, reducing clutter, and improving overall system dependability. Strong Electrical Insulation: Features built-in isolation to guard against electrical interference and sudden power surges, ensuring consistent and reliable performance in harsh industrial surroundings. Broad Voltage Compatibility: Fully operational with both 24V DC and 120V AC systems, offering outstanding adaptability across various automation scenarios. Compact Space-Saving Form: Designed with a small footprint, the 1794-TBN preserves valuable panel space, contributing to an organized and optimized industrial automation system layout. Technical Specifications Model: 1794-TBN Type: Flex I/O Terminal Base Series: Flex I/O Mounting: DIN rail mounting Number of Slots: 4 slots for Flex I/O modules I/O Voltage Range: Compatible with 24V DC and 120V AC systems Input/Output Signal Types: Supports digital, analog, and communication I/O modules Power Supply: Provides power distribution to connected I/O modules Isolation: Input-to-ground isolation Certifications: UL, CE, and cUL certified Operating Temperature: 0°C to 60°C (32°F to 140°F) Dimensions: Compact design for space efficiency Weight: Lightweight for easy handling and installation Applications Industrial Automation Systems: Essential for control systems that require multiple I/O modules to monitor and manage a diverse range of devices, including sensors, actuators, and switches. Machine Control: Perfectly suited for the precise operation of automated machinery, intricate conveyor setups, and advanced robotic applications. Process Control: Crucial in process control environments where seamless integration of digital and analog I/O modules is vital for monitoring and directing industrial processes. Building Automation: Ideal for sophisticated building management systems, facilitating the monitoring and control of HVAC systems, intelligent lighting solutions, and comprehensive security infrastructure. Material Handling Systems: Pivotal for interconnected material handling configurations, ensuring efficient communication among various sensors, actuators, and controllers. Why Choose Exceptional Versatility: With its broad voltage compatibility and support for diverse I/O modules, the 1794-TBN provides unparalleled flexibility, adapting to a wide range of industrial applications. Enhanced Reliability: Built-in isolation and sturdy construction guarantee stable and protected operation, delivering confidence even in the most demanding industrial settings. Simplified Integration: Designed for DIN rail mounting and featuring efficient power distribution, this terminal base significantly reduces installation complexity and wiring requirements. Space and Cost Efficiency: Its compact design optimizes control panel space, while its modular nature allows for scalable solutions without excessive cost. Order NowUpgrade your industrial control system with the Allen-Bradley 1794-TBN Flex I/O Terminal Base. Its robust design and versatile capabilities make it an ideal choice for a wide array of applications. Contact us today to place your order or to learn more about how this product can enhance your operations.FAQWhat is the primary function of the Allen-Bradley 1794-TBN?The 1794-TBN serves as a terminal base for Allen-Bradley Flex I/O modules, providing electrical connections and a secure mounting point for up to four modules.What types of I/O modules are compatible with the 1794-TBN?This terminal base supports a wide range of digital, analog, and communication I/O modules, allowing for flexible system configurations.Is the 1794-TBN difficult to install?No, it is designed for effortless DIN rail mounting, which significantly reduces installation time and simplifies setup.Can this terminal base be used in different voltage environments?Yes, it is compatible with both 24V DC and 120V AC systems, offering broad versatility for various industrial applications.What are the benefits of the integrated power distribution feature?Integrated power distribution simplifies wiring, minimizes clutter, and enhances the overall reliability of your system by efficiently supplying power to all connected I/O modules.

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$192.99
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PRODUCT DETAILS

Allen-Bradley 1794-TBN

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

  • Model: 1794-TBN
  • Type: Flex I/O Terminal Base
  • Series: Flex I/O
  • Mounting: DIN rail mounting
  • Number of Slots: 4 slots for Flex I/O modules
  • I/O Voltage Range: Compatible with 24V DC and 120V AC systems
  • Input/Output Signal Types: Supports digital, analog, and communication I/O modules
  • Power Supply: Provides power distribution to connected I/O modules
  • Isolation: Input-to-ground isolation
  • Certifications: UL, CE, and cUL certified
  • Operating Temperature: 0°C to 60°C (32°F to 140°F)
  • Dimensions: Compact design for space efficiency
  • Weight: Lightweight for easy handling and installation

Applications

  • Industrial Automation Systems: Essential for control systems that require multiple I/O modules to monitor and manage a diverse range of devices, including sensors, actuators, and switches.
  • Machine Control: Perfectly suited for the precise operation of automated machinery, intricate conveyor setups, and advanced robotic applications.
  • Process Control: Crucial in process control environments where seamless integration of digital and analog I/O modules is vital for monitoring and directing industrial processes.
  • Building Automation: Ideal for sophisticated building management systems, facilitating the monitoring and control of HVAC systems, intelligent lighting solutions, and comprehensive security infrastructure.
  • Material Handling Systems: Pivotal for interconnected material handling configurations, ensuring efficient communication among various sensors, actuators, and controllers.

Why Choose the 1794-TBN?

  • Exceptional Versatility: With its broad voltage compatibility and support for diverse I/O modules, the 1794-TBN provides unparalleled flexibility, adapting to a wide range of industrial applications.
  • Enhanced Reliability: Built-in isolation and sturdy construction guarantee stable and protected operation, delivering confidence even in the most demanding industrial settings.
  • Simplified Integration: Designed for DIN rail mounting and featuring efficient power distribution, this terminal base significantly reduces installation complexity and wiring requirements.
  • Space and Cost Efficiency: Its compact design optimizes control panel space, while its modular nature allows for scalable solutions without excessive cost.

Availability & Shipping

  • In stock: 1794-TBN 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 1794-TBN ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The 1794-TBN serves as a terminal base for Allen-Bradley Flex I/O modules, providing electrical connections and a secure mounting point for up to four modules.

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.

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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