Programmable Logic Controllers (PLC) » Allen-Bradley » 1771

Allen-Bradley 1771 Specifications

Specifications

Form factorModular rack / chassis
Max modules per chassis12
Logic supply voltage5 V
Typical field input voltage24 V
The above specifications are based on the 1976 model year.

Allen-Bradley 1771 description

The Allen-Bradley 1771 is a legacy modular I/O system designed for industrial control and machine automation. Built for reliability in harsh environments, it offers broad I/O module variety and simple integration into older PLC installations, making it a common choice for maintenance, retrofit and spare-parts applications.

Currently For Sale

  • Trusted Seller
    ALLEN BRADLEY 1771-ASB/E

    ALLEN BRADLEY 1771-ASB/E

    • Manufacturer: Allen-Bradley
    • Model: 1771-ASB/E

    Came from working unit 30 day warranty WrB Make: Allen-Bradley

    $99 USD
    Muskegon, MI
  • Trusted Seller
    Allen Bradley Termination Panel -

    Allen Bradley Termination Panel - 1771ht3

    • Manufacturer: Allen-Bradley
    • Model: 1771

    New Open Box, Made In Usa Name: Termination Panel | Arrival date: 10-30-2025 | Dimensions l x w x h (inches): 12 x 8 x 4 | Electrical: 24V | Weight (lb.): 2 | Available quantity: 1

    $110 USD
    Euclid, OH
  • Allen-Bradley,1771-KF,Interface Module

    Allen-Bradley,1771-KF,Interface Module

    • Manufacturer: Allen-Bradley
    • Model: 1771

    Used and in good condition. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to ma...

    $20 USD
    Galion, OH
  • Trusted Seller
    ALLEN BRADLEY 1771-ASB/C ADAPTER MODULE

    ALLEN BRADLEY 1771-ASB/C ADAPTER MODULE REV E SERIES C

    • Manufacturer: Allen-Bradley
    • Model: 1771-ASB/C

    Came from working unit 30 day warranty WrA Mpn: 1771-ASB | Type: I/O Module | Make: Allen-Bradley | Controller platform: PLC-5

    $199 USD
    Allendale, MI
  • Allen-Bradley,1771-P2,Power Supply

    Allen-Bradley,1771-P2,Power Supply

    • Manufacturer: Allen-Bradley
    • Model: 1771-P2

    Used and in good condition. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to ma...

    $36 USD
    Galion, OH
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