Industrial Automation » Input/Output Modules

Building Filters

1136

Used electrical control modules

  • RELIANCE ELECTRIC M/N 61C500A B/M

    RELIANCE ELECTRIC M/N 61C500A B/M 57456-1 115V AC INPUT Module 3C

    • Manufacturer: Reliance Electric

    RELIANCE ELECTRIC M/N 61C500A B/M 57456-1 115V AC INPUT Module 3C Used automation parts pulled from storage or the working environment. Tested to the best of our ability. Shows signs of normal use. Here at Palm...

    $34 USD
    Duncan, SC
  • Trusted Seller
    Siemens Simatic S7-1500 Analog Input

    Siemens Simatic S7-1500 Analog Input Module - 6es7531-7nf10-0ab0

    • Manufacturer: Siemens
    • Model: 6ES7

    New Open Box Name: Simatic S7-1500 Analog Input Module | Arrival date: 08-14-2025 | Dimensions l x w x h (inches): 9 x 9 x 9 | Weight (lb.): 1 | Available quantity: 1

    $260 USD
    Euclid, OH
  • 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
  • Trusted Seller
    Reliance Electric 61C542 / 61C542A

    Reliance Electric 61C542 / 61C542A Analog Input Module +/- 10V, 16 Channel NEW

    • Manufacturer: Reliance Electric

    Reliance Electric 61C542 / 61C542A Analog Input Module +/- 10V, 16 Channel *NEW* Actual item shown Condition is new old stock, in original factory packaging This module sells for over $2,000, HUGE SAVINGS Please ...

    $712 USD
    Gilbert, IA
  • Trusted Seller
    Siemens Simatic Et200 Compact Module

    Siemens Simatic Et200 Compact Module Factory Sealed. - 6es7 141-3bf00-0xa0

    • Manufacturer: Siemens
    • Model: 6ES7

    New, Factory Sealed, Quantity 1 Name: Simatic Et200 Compact Module Factory Sealed. | Arrival date: 05-15-2025 | Dimensions l x w x h (inches): 9 x 9 x 9 | Weight (lb.): 6 | Available quantity: 1

    $46 USD
    Euclid, OH
  • Trusted Seller
    Siemens 100mbps Transfer Rate Simatic

    Siemens 100mbps Transfer Rate Simatic Dp Interface Module - 6es7151-3aa23-0ab0

    • Manufacturer: Siemens
    • Model: 6ES7151

    New Open Box Name: Simatic Dp Interface Module | Arrival date: 08-14-2025 | Dimensions l x w x h (inches): 7 x 7 x 5 | Capacity: 100MBPS TRANSFER RATE | Weight (lb.): 1 | Available quantity: 1

    $110 USD
    Euclid, OH
  • RELIANCE,57C409,ANALOG INPUT MODULE NOS

    RELIANCE,57C409,ANALOG INPUT MODULE NOS

    • Manufacturer: Reliance Electric
    • Model: 57C409

    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 ...

    $200 USD
    Galion, OH
  • RELIANCE,61C366,ANALOG RAIL OUTPUT MODULE REFURBISHED

    RELIANCE,61C366,ANALOG RAIL OUTPUT MODULE REFURBISHED

    • 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 ...

    $800 USD
    Galion, OH
  • RELIANCE,57C410A,ANALOG OUTPUT MODULE NOS

    RELIANCE,57C410A,ANALOG 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 ...

    $275 USD
    Galion, OH
  • Mitsubishi Electric - FR-EPG -

    Mitsubishi Electric - FR-EPG - Auxiliary Output Module. Loc 3D-17

    • Manufacturer: Mitsubishi

    Mitsubishi Electric - FR-EPG - Auxiliary Output Module. Loc 3D-17 We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process Control...

    $100 USD
    Duncan, SC
  • RELIANCE,45C942,INPUT MODULE NEW

    RELIANCE,45C942,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 ...

    $250 USD
    Galion, OH
  • RELIANCE,57C410,ANALOG OUTPUT MODULE 4 CHANNEL

    RELIANCE,57C410,ANALOG OUTPUT MODULE 4 CHANNEL CIRCUIT NOS

    • Manufacturer: Reliance Electric
    • Model: 57C410

    New in original box. Box is dirty and distressed from storage. 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 diffe...

    $340 USD
    Galion, OH
  • Trusted Seller
    NEW SCHNEIDER ELECTRIC AS-B875-001 8-Channel

    NEW SCHNEIDER ELECTRIC AS-B875-001 8-Channel Analog Input Module STOCK G225

    • Manufacturer: Modicon

    NEW SCHNEIDER ELECTRIC AS-B875-001 8-Channel Analog Input Module STOCK G225

    $1,200 USD
    Montgomeryville, PA
  • Trusted Seller
    RELIANCE ELECTRIC, 16 BIT REGISTER

    RELIANCE ELECTRIC, 16 BIT REGISTER OUTPUT MODULE, 45C381B

    • Manufacturer: Reliance Electric

    “MAY HAVE SHELF WEAR” RELIANCE ELECTRIC, 16BIT REGISTER OUTPUT MODULE, 45C381B RELIANCE ELECTRIC16-BIT REGISTER OUTPUT MODULE45C381BAPPROX MEASUREMENTS OF CARD13'' X 7 1/2'' X 1 1/8''MEASUREMENTS OF BOX14'' X 11'...

    $420 USD
    Coffeyville, KS
  • Trusted Seller
    Reliance Electric ABB 57C419 Input

    Reliance Electric ABB 57C419 Input Module 5-24VDC Circuit Rev 03 NEW IN BOX

    • Manufacturer: Reliance Electric

    Reliance Electric ABB 57C419 Input Module 5-24VDC Circuit Rev 03 **NEW IN BOX** Actual item shown in photos, HUGE SAVINGS This module is brand new, never used in original factory packaging Please make sure this i...

    $755 USD
    Gilbert, IA
89101112

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.