| Brand | Allen‑Bradley |
| Series | PLC‑5 / 1771 Bulletin |
| Status | Active / Legacy Support |
| Mounting | Rack‑Mountable |
| Input Type | AC/DC Discrete |
| Part Number | 1771‑IAD |
| Manufacturer | Rockwell Automation |
| Product Type | Discrete Input Module |
| Input Voltage | 120 VAC / 125 VDC |
| Number of Inputs | 16 Channels |
| Compatible Chassis | 1771‑A1B, A2B, A3B, A3B1, A4B, AM1, AM2 |
Does the Allen-Bradley 1771-IAD come with a warranty?
Yes. The 1771-IAD is backed by our 24-Month Replace Industrial Warranty, with no rush fees or hidden warranty charges. If a unit fails under normal use within the warranty period, we repair or replace it.
Is this 1771-IAD a genuine Allen-Bradley part?
The 1771-IAD is sourced and verified independently. Replace Industrial, LLC is not a Rockwell Automation Authorized Distributor, and all warranties are provided directly by Replace Industrial.
Is the Allen-Bradley 1771-IAD new or used?
We offer the 1771-IAD in multiple conditions, from unused surplus to professionally reconditioned units. Every option is sourced and verified independently and covered by our 2-year replacement warranty.
What are the key ratings of the 1771-IAD?
The 1771-IAD runs on 120 VAC / 125 VDC.
What is the Allen-Bradley 1771-IAD?
The 1771-IAD is an Allen-Bradley PLC-5 Discrete Input Module.
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.
All products are covered by our 2-Year (24-Month) Replace Industrial Warranty. If a unit is found defective under normal use within the warranty period, we repair or replace it at no additional cost, and a unit may be returned for a full refund within 30 days if returned in the same condition it was sent.
Replace Industrial is an independent distributor and does not convey the manufacturer's warranty; all warranties are provided by Replace Industrial alone. Read the full warranty policy
We repair a wide range of industrial automation equipment, including PLCs, HMIs, drives, servo motors, switches, and circuit breakers, with rush service for critical downtime. Request a quote, ship your unit, and we diagnose, repair, and return it. Request a repair quote
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We can ship many items our the same day via Overnight or 2 Day Shipping.
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