Industrial Automation » Input/Output Modules

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1133

Used electrical control modules

  • RELIANCE,45C66A,DUAL CONTACT OUTPUT MODULE

    RELIANCE,45C66A,DUAL CONTACT OUTPUT MODULE

    • Manufacturer: Reliance Electric

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $15 USD
    Galion, OH
  • Trusted Seller
    Reliance Electric 61C501 16-Channel Input

    Reliance Electric 61C501 16-Channel Input Module

    • Manufacturer: Reliance Electric

    Used Reliance Electric 61C501 16-Channel Input Module. 115V AC/DC Input Module Input: 115V AC

    $425 USD
    Millis, MA
  • RELIANCE,57C421B,PULSETACH INPUT MODULE NEW

    RELIANCE,57C421B,PULSETACH INPUT MODULE NEW

    • Manufacturer: Reliance Electric

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $450 USD
    Galion, OH
  • Trusted Seller
    Reliance Electric 61C500 16 Channel

    Reliance Electric 61C500 16 Channel Input Module

    • Manufacturer: Reliance Electric

    Used Reliance Electric 61C500 16 Channel Input Module . Number of Channels: 16 Input: 115 VAC

    $195 USD
    Millis, MA
  • Trusted Seller
    Siemens Interface Module - 6es7

    Siemens Interface Module - 6es7 154-1aa01-0ab0

    • Manufacturer: Siemens
    • Model: 6ES7

    New Open Box, Made In Germany Name: Interface Module | Arrival date: 10-02-2025 | Dimensions l x w x h (inches): 5 x 3 x 5 | Weight (lb.): 1 | Available quantity: 1

    $110 USD
    Euclid, OH
  • Trusted Seller
    Allen Bradley 2-point Analog Output

    Allen Bradley 2-point Analog Output Module, 2pcs - 1734-oe2c

    • Manufacturer: Allen-Bradley
    • Model: 1734

    New Open Box, 2pcs Name: 2-point Analog Output Module, 2pcs | Arrival date: 08-19-2025 | Dimensions l x w x h (inches): 7 x 7 x 5 | Weight (lb.): 1 | Available quantity: 1

    $180 USD
    Euclid, OH
  • RELIANCE,45C66,DUAL CONTACT OUTPUT MODULE NOS

    RELIANCE,45C66,DUAL CONTACT OUTPUT MODULE NOS

    • Manufacturer: Reliance Electric

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $60 USD
    Galion, OH
  • Trusted Seller
    Reliance Electric 57C403 115VAC High

    Reliance Electric 57C403 115VAC High Output Module

    • Manufacturer: Reliance Electric

    Used Reliance Electric 57C403 115VAC High Output Module. Max Voltage: 132V RMS Max Current: 2A RMS/PT

    $195 USD
    Millis, MA
  • Horner Electric HE693DAC420D Analog Output

    Horner Electric HE693DAC420D Analog Output Module, 4 Channel - USED

    • Manufacturer: Horner Electric

    USED Horner Electric HE693DAC420D Analog Output Module, 4 Channel Item is guaranteed to not be DOA for replacement or refund within 30 days of receiving. Item is sold as pictured. The item you receive may not be ...

    $665 USD
    Kawkawlin, MI
  • Trusted Seller
    Reliance Electric 57C421B Pulse Tach

    Reliance Electric 57C421B Pulse Tach Input Module

    • Manufacturer: Reliance Electric

    Used Reliance Electric 57C421B Pulse Tach Input Module. Type: S-67108-3 Date: 95/09/06

    $325 USD
    Millis, MA
  • Trusted Seller
    Reliance Electric 61C542A 16 Channel

    Reliance Electric 61C542A 16 Channel Analog Input Module

    • Manufacturer: Reliance Electric

    Used Reliance Electric 61C542A 16 Channel Analog Input Module . M/N 61C542A +/- 10VDC 16 Channel Manual: J-3699

    $525 USD
    Millis, MA
  • Trusted Seller
    Reliance Electric 61C346 Analog Input

    Reliance Electric 61C346 Analog Input Module 0-10 VDC

    • Manufacturer: Reliance Electric

    Used Reliance Electric 61C346 Analog Input Module 0-10 VDC. M/N: 61C346 0 to 10V InputUse 0.75A 120VAC Use 0.25A Max Source: 10.000VA B/M: 86429-78RA Manual: J-3688 4-IN Analog Rail: 0-10VDC Card 1: 57451-B 120VA...

    $565 USD
    Millis, MA
  • Trusted Seller
    Reliance Electric 61C540A 4-20mA Analog

    Reliance Electric 61C540A 4-20mA Analog Input Module

    • Manufacturer: Reliance Electric

    Used Reliance Electric 61C540A 4-20mA Analog Input Module. M/N: 61C540A Number of Channels: 16 Circuit: 0-57460-1A Manual: J2-3002-2

    $825 USD
    Millis, MA
  • RELIANCE,57402-D,OUTPUT MODULE

    RELIANCE,57402-D,OUTPUT MODULE

    • Manufacturer: Reliance Electric

    Used in good condition. Part was pulled from operation upon factory shutdown and has been in storage since. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multi...

    $60 USD
    Galion, OH
  • RELIANCE,45C997,OUTPUT MODULE ANALOG NEW

    RELIANCE,45C997,OUTPUT MODULE ANALOG NEW

    • Manufacturer: Reliance Electric

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $1,600 USD
    Galion, OH
7891011

Overview

Input/Output (I/O) modules are essential components in industrial automation systems. They serve as the interface between various field devices and the control system, allowing the exchange of data and signals. I/O modules can handle both analog and digital inputs and outputs, making them crucial for monitoring and controlling processes in manufacturing, energy, and other sectors.

FAQ

What should I consider when buying an I/O module?

Consider the compatibility with your existing control system, the number of input and output channels, and the type of signals (analog or digital) it supports. Reliability and ease of integration are also important factors.

How do I ensure the I/O module is shipped safely to my location?

Use a reputable shipping service that specializes in electronics. Ensure the module is properly packaged with anti-static materials and secured to prevent damage during transit.

What is the maintenance schedule for an I/O module?

Regular maintenance includes inspecting connections for wear or corrosion, ensuring the module is clean and free from dust, and checking for any firmware updates from the manufacturer. Consult the manufacturer’s manual for detailed maintenance intervals.