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

    $100 USD
    Euclid, 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
  • Trusted Seller
    Allen-Bradley 1771-OW

    Allen-Bradley 1771-OW

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

    All parts ordered before 3:30 pm (EST) typically ship same day via UPS, FedEx, or USPS! If the order is placed after 3:30 pm and you still would like it send out same day, feel free to reach out to us and we will...

    $30 USD
    Muskegon, MI
  • Trusted Seller
    ALLEN-BRADLEY HIGH RESOLUTION ANALOG MODULE

    ALLEN-BRADLEY HIGH RESOLUTION ANALOG MODULE 1771-NT1

    • Manufacturer: Allen-Bradley
    • Model: 1771

    UNUSED! PART # 96803396. SERIES A.

    $375 USD
    Millwood, WV
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