1771-IAD
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Shipping & Delivery
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Product Conditions
Product Conditions
Surplus: Surplus units show no signs of installation or having been used previously. These units are in the original packaging, which may have been opened.
Used: Used units have been previously used and are inspected, cleaned and tested.
All units come with a 1 Year Replace Industrial Warranty.
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Tax & Exemptions
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Product Conditions
Replace Industrial, LLC is not affiliated with any of the manufacturers listed on this website. All products are sourced & verified through the industrial surplus market and through other independent supply chains. We do not convey any manufacturer warranty with the product. Each product sold comes with a 2 Year Replace Industrial Warranty, unless specified otherwise. This warranty conveys solely through Replace Industrial, LLC. and is completely unaffiliated with any manufacturer warranty. The terms of our warranty can be found here.
Surplus: This unit is sourced through the industrial market outside of the manufacturer and has been independently verified to not have been used operationally previously. These units are in the original packaging, but the packaging & unit may show signs of shelf wear.
Used: This unit may have been previously used and show signs of wear. The unit has been independently verified and is guaranteed with a 1 Year Replace Automation Warranty. The unit has been sourced through independent supply chains in the industrial markets.
Firmware: Replace Industrial, LLC sells hardware only and does not sell firmware and makes no representation as to what firmware may or may not be present on the hardware. We do not obtain or provide software for customers.
Allen-Bradley 1771-IAD
The Allen‑Bradley 1771‑IAD is a discrete input module from the PLC‑5 series designed for flexible operation with both 120 VAC and 125 VDC signals. Featuring 16 input channels, it’s ideal for monitoring a range of industrial input devices. This module is compatible with various chassis types including 1771‑A1B through A4B, as well as AM1 and AM2. The 1771‑IAD converts incoming AC or DC signals into logic-level inputs for the processor, providing reliable and isolated signal processing. Designed for high-performance automation systems, this module is a dependable solution for mixed-voltage input environments.
| Manufacturer | Rockwell Automation |
| Brand | Allen‑Bradley |
| Part Number | 1771‑IAD |
| Product Type | Discrete Input Module |
| Series | PLC‑5 / 1771 Bulletin |
| Number of Inputs | 16 Channels |
| Input Voltage | 120 VAC / 125 VDC |
| Input Type | AC/DC Discrete |
| Compatible Chassis | 1771‑A1B, A2B, A3B, A3B1, A4B, AM1, AM2 |
| Mounting | Rack‑Mountable |
| Status | Active / Legacy Support |
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