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I/O chassis for PLC-5 systems, supports 1771 modules, panel mount, universal backplane.

Allen-Bradley 1771-A1B

SKU: 1771-A1B
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$558.00
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Allen-Bradley 1771-A1B | 4-Slot Universal I/O Chassis for PLC-5 Systems

Overview

The Allen-Bradley 1771-A1B is a 4-slot I/O chassis designed for use with PLC-5 controllers and 1771 I/O modules. It features a universal backplane that supports both digital and analog modules, and is ideal for small-scale automation systems or for expanding existing PLC-5 networks. Compatible with a variety of 120/240V AC and 24V DC power supplies, the chassis allows for flexible, modular installation in industrial control panels.

Key Features

  • Slots: 4 available I/O slots

  • Compatibility: Supports all 1771 series I/O modules and PLC-5 processors

  • Backplane: Universal I/O backplane

  • Mounting: Panel mount or DIN rail

  • Power Supply: Compatible with separately mounted 1771-Px power supplies

  • Chassis Power Distribution: Backplane-powered from external PSU

  • Expansion: Can be used as a local or remote I/O rack

Technical Specifications

  • Catalog Number: 1771-A1B

  • Backplane Current: As required per installed modules

  • Operating Temperature: 0°C to 60°C

  • Storage Temperature: -40°C to 85°C

  • Certifications: UL, CSA, CE

  • Dimensions (HxWxD): Approx. 290 x 100 x 180 mm

Applications

  • Legacy Allen-Bradley PLC-5 systems

  • Distributed I/O in process automation

  • Industrial control panels and OEM machines

  • Expansion racks for existing 1771-based installations

  • Manufacturing, utility, and infrastructure automation

Why Choose the 1771-A1B?

  • Compact 4-Slot Design for Small Systems or Expansion

  • Universal Backplane for Analog and Digital I/O

  • Seamless Integration with PLC-5 Architecture

  • Proven Allen-Bradley Reliability in Harsh Environments

Order Now

The Allen-Bradley 1771-A1B chassis is in stock and available for immediate worldwide delivery. 

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.
1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.
Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.

Description

Allen-Bradley 1771-A1B | 4-Slot Universal I/O Chassis for PLC-5 Systems

Overview

The Allen-Bradley 1771-A1B is a 4-slot I/O chassis designed for use with PLC-5 controllers and 1771 I/O modules. It features a universal backplane that supports both digital and analog modules, and is ideal for small-scale automation systems or for expanding existing PLC-5 networks. Compatible with a variety of 120/240V AC and 24V DC power supplies, the chassis allows for flexible, modular installation in industrial control panels.

Key Features

  • Slots: 4 available I/O slots

  • Compatibility: Supports all 1771 series I/O modules and PLC-5 processors

  • Backplane: Universal I/O backplane

  • Mounting: Panel mount or DIN rail

  • Power Supply: Compatible with separately mounted 1771-Px power supplies

  • Chassis Power Distribution: Backplane-powered from external PSU

  • Expansion: Can be used as a local or remote I/O rack

Technical Specifications

  • Catalog Number: 1771-A1B

  • Backplane Current: As required per installed modules

  • Operating Temperature: 0°C to 60°C

  • Storage Temperature: -40°C to 85°C

  • Certifications: UL, CSA, CE

  • Dimensions (HxWxD): Approx. 290 x 100 x 180 mm

Applications

  • Legacy Allen-Bradley PLC-5 systems

  • Distributed I/O in process automation

  • Industrial control panels and OEM machines

  • Expansion racks for existing 1771-based installations

  • Manufacturing, utility, and infrastructure automation

Why Choose the 1771-A1B?

  • Compact 4-Slot Design for Small Systems or Expansion

  • Universal Backplane for Analog and Digital I/O

  • Seamless Integration with PLC-5 Architecture

  • Proven Allen-Bradley Reliability in Harsh Environments

Order Now

The Allen-Bradley 1771-A1B chassis is in stock and available for immediate worldwide delivery. 

Condition

New & Genuine Products – Factory Sealed At PLCpartssolution, all our products are 100% new, genuine, and come in original factory-sealed packaging. We guarantee authentic components that meet the highest industry standards for performance and reliability.

Warranty

1-Year Warranty Included All new products sold by PLCpartssolution come with a 1-year warranty. We stand behind the quality and reliability of our parts, ensuring coverage against manufacturing defects under normal operating conditions.

Disclaimer

Disclaimer: PLCpartssolution is an independent supplier of surplus and refurbished industrial automation products. We are not an authorized distributor, reseller, or representative of the brands listed on this website. All trademarks, brand names, and logos are the property of their respective owners. PLCpartssolution is not affiliated with, endorsed by, or approved by ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other manufacturers mentioned.
Allen-Bradley 1771-A1B

Allen-Bradley 1771-A1B

$558.00
Add to wishlist
Allen-Bradley 1771-A1B

Allen-Bradley 1771-A1B

Your Price:
$558.00
Item Added to Your Cart
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