PDF Electric and Supply

1-800-730-0292
1-919-205-4392

1785-LT3

Buy Now1785-LT3
1785-LT3
1785-LT3 Wiring

  • 1785-LT3
  • 1785-LT3 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 1785-LT3 is a classic PLC-5 programmable controller from Allen-Bradley/Rockwell Automation is primarily used for centralized control or distributed control within a bigger system. The PLC-5 controller has many special programming features and it allows the incorporation of different strategies to achieve full control of the system. This Allen-Bradley processor has a DH+ channel and a Remote I/O channel (adapter only). The DH+ channel of the controller allows remote programming and easier access to needed data than previous PLCs. Special DH+ links are also valuable for the transfer of data to higher degree computers. The intended usage of the DH+ link is to provide communication means for the 1785-LT3 controller in order to communicate with other processors and programming terminals from the system.

The 1785-LT3 PLC-5 processor features 512 maximum total I/O and 256 maximum Analog I/O. The SRAM user memory for the controller is 6K words, unlike some similar controllers. In addition, the controller has maximum of 93 I/O Chassis total, 0 maximum I/O Extended Local Chassis, and 32 maximum Universal Remote I/O Chassis. per each I/O link. Besides that, the controller has one RS-232-C/422-A/423- A port and one control coprocessor expansion port. Other specifications include a maximum of 3072 Analog I/O and an I/O scan time per rack of 10 milliseconds at 57.6 kilobits per second, 7 milliseconds at 115.2 kilobits per second, and 3 milliseconds at 230.4 megabits per second. The controller has a backplane current of 2.5 Amps at 5 Volts DC. When operating the controller, the temperature should be between 0 and 60 degrees Celsius (32 and 140 degrees Fahrenheit). The non-operating storage temperature is between -40 and 85 degrees Celsius (-40 and 185 degrees Fahrenheit). It is strongly suggested that the users hold the device in an environment which has a temperature within the given ranges.

Other Automation PLC-5

SKU 2176140  UPC 0799705806306

Processor PLC5 Module AB 1785-LT

Troubleshooting and Product Information for 1785-LT3

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

Other Automation
PLC-5 1785-LT3
Weight: 2 Lbs
Dimensions: 10"x12"x2"In
Call Now
1-800-730-0292
Ships Today In Stock, Ships Today
1 In Stock
1785-LT3
Call Now 1-800-360-6802
Weight: 2 Lbs
Dimensions: 10"x12"x2"In
1 In Stock
Ships Today
FAST Quote

Other 1785-LT3

Available Revisions:

Confirm Your Revision Number

1785-LT3 , CIM1785-LT3

    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.