PDF Electric and Supply



Buy Now1771-A2B
1771-A2B Wiring

Rated 4.6/5 based on 13 ratings.
  • 1771-A2B
  • 1771-A2B Wiring
PDF Electric & Supply Company is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.

The Allen-Bradley 1771-A2B is an input and output back-panel-mounted chassis that houses Allen-Bradley 1771 input/output modules. It has 8 slots. The 1771-A2B comes in an open enclosure weighing approximately 10.3 pounds and spanning 12.4 x 9 x 14 inches. The backplane facilitates communication between the installed modules and processor.


The 1771-A2B chassis can receive its power from external power supplies, power supply modules, and from processors that have integrated power supplies. A load of 16 amps at 5V DC is the highest operating backplane current load that the 1771-A2B can handle. The chassis can be grounded by using the grounding studs which are connected to a central ground bus. It also functions optimally at temperature ranges of 0 to 60 degrees Celsius and in 5-95% relative non-condensing humidity.


The power supply for the 1771-A2B chassis is set using the configuration jumper. To configure the chassis to work with an external power supply it is set to the “N” position, and when it is receiving power from a power supply module or from a processor with an integrated power supply, it is set to the “Y” position. The 1771-A2B chassis can be powered by both of these sources, but only by one at a time.


The 1771-A2B is intended for use in an industrial environment with a Pollution Degree 2 pollution rating. Ensure that the spacing inside of the enclosure is adequate for the components (chassis) to be installed. There should be at least 4 inches between the side of the enclosure and a major component (chassis). Likewise, there should be 4 inches horizontal distance and 6 inches vertical between the major components.

Other Automation PLC-5

SKU 2170127  UPC 0799705803268

AB 1771 I/O chassis for I/O modules, 8 slots

Troubleshooting and Product Information for 1771-A2B

Download product information, troubleshooting guides and operation manuals to get your PLC operational.

Other Automation
PLC-5 1771-A2B
Weight: 2 Lbs
Dimensions: 10"x12"x2"In
Call Now
Ships Today In Stock, Ships Today
In Stock
Call Now 1-800-360-6802
Weight: 2 Lbs
Dimensions: 10"x12"x2"In
In Stock
Ships Today
FAST Quote

Other 1771-A2B

Available Revisions:

Confirm Your Revision Number

1771-A2B , CIM1771-A2B

    Need To Order A Specific Revision?

    Give us a call at 1-800-360-6802 or 1-919-535-3180.

    We can help you with your Revision specific needs.

    Free Overnight delivery on orders over $500!

    What is New Surplus?

    These “New Surplus” units are a great cost saving alternative. This product is sealed in the original manufacturer’s packaging with all sub-assemblies and documentation. May indicate older date code. Comes with a PDF Supply 3-year warranty.

    Free Overnight delivery on orders over $500!

    What is Surplus New?

    Surplus New - New unused and includes all sub-assemblies and documentation. Product may ship in manufacturer or PDF Supply packaging. May indicate older date code. Includes a PDF Supply 3 Year Warranty.

    Free Overnight delivery on orders over $500!

    What is Reconditioned?

    Reconditioned products from PDF Supply are a cost-effective alternative to new and obsoleted PLC products. Every part is reconditioned down to the circuit board level and updated to the latest revision. All parts are thoroughly inspected and hand-cleaned before being functionally tested in a fully configured system.

    Our Reconditioned Products always come with a PDF Supply 2-Year Warranty.

    Free Overnight delivery on orders over $500!

    What is a Verified Substitute?

    A verified substitute new product is a "drop in" replacement designed with identical specifications as the OEM product. It will meet all electrical and dimensional charactertics at a substanstially reduced price.

    Free Overnight delivery on orders over $500!

    Download Lastest Documentation

    Please visit this manufacturer's website to download the lastest manuals and datasheets.

    Lowest Price Guarantee

    We stand behind our prices with a lowest price guarantee. If you find a legacy GE PLC part advertised for less on an authorized GE PLC distributor website, simply contact us and send us a link to the lower advertised price. We will match that price and ship overnight FREE. The item must be in stock, in similar condition and be able to ship same day.

    Free Shipping

    FREE Overnight Delivery for Continental US orders over $500!

    FREE Ground Delivery for Continental US orders under $500!

    US orders placed Monday - Friday before 5pm EST will ship same day.

    Canada/Mexico orders placed Monday - Friday before 3:30pm EST will ship same day.

    International orders will ship the following business day.