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Allen-Bradley 1771-IAD/C PLC-5 Digital AC/DC Input Module, 16 Inputs, 120V Category

SKU: CP100968
Model: 1771-IAD/C
Product Condition: Certified Pre-owned
$19.95

Allen-Bradley 1771-IAD PLC-5 digital input module with 16 AC/DC inputs. Designed for 120V industrial signals, reliable discrete device monitoring, and seamless integration into 1771 I/O chassis.

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One year warranty
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Allen Bradley Programmable Logic Controllers (PLCs) Automation
Product Description

Allen-Bradley 1771-IAD PLC-5 16-Channel 120V AC/DC Input Module

The Allen-Bradley 1771-IAD is a PLC-5 digital AC/DC input module designed to monitor discrete industrial field devices using a 120V voltage category. It installs directly into compatible 1771 I/O chassis and provides reliable signal acquisition for control systems.

16-Channel Discrete Input Architecture

  • Sixteen isolated digital input channels
  • Supports both AC and DC input signals
  • Selectable input signal delay via onboard jumper
  • LED status indicators for each input channel

Industrial-Grade Electrical Performance

The module operates within a 79–138V AC/DC on-state voltage range and provides consistent signal recognition across varying field conditions. Integrated input filtering and optoelectrical isolation help protect PLC logic from electrical noise and transients.

Typical PLC-5 Applications

  • Monitoring pushbuttons, limit switches, and selector switches
  • Interfacing relay and contactor auxiliary contacts
  • Discrete signal acquisition in PLC-5 control systems
Specifications
Specifications
MPN 1771-IAD/C
Product Condition Certified Pre-owned
Shipping Length (in.) 13
Shipping Width (In.) 13
Shipping Height (In.) 13
Condition Type Certified Pre-Owned
Item Returns This item can be returned
Brand Allen-Bradley
Manufacturer Rockwell Automation
Catalog Number 1771-IAD/C
Product Line PLC-5 / 1771 I/O System
Module Type Digital AC/DC Input Module
Number of Inputs 16
Input Type Discrete AC/DC
Voltage Category 120V AC/DC
AC Operating Voltage Range 79–138 VAC (50/60 Hz)
DC Operating Voltage Range 79–138 VDC
Nominal Input Voltage 120 VAC / 125 VDC
Backplane Current 195 mA @ 5V DC
Typical AC Signal Delay (On) 5 ms ±3 ms (selectable)
Typical DC Signal Delay (On) 3 ms ±0.1 ms or 10 ms ±1 ms (selectable)
Typical Signal Delay (Off) 25 ms ±5 ms (AC/DC)
Maximum AC Off-State Current 3.0 mA @ 43V AC
Input Impedance 11.2 kΩ @ 60 Hz (AC)
Isolation Voltage 2500V AC for 1 second
Power Dissipation 8.8 W max / 1.0 W min
Thermal Dissipation 30.1 BTU/hr max / 3.42 BTU/hr min
Status Indicators 1 Green Module Active LED, 16 Red Input Status LEDs
Wiring Arm Compatibility 1771-WH
Compatible Chassis 1771-A1B, A2B, A3B, A3B1, A4B, 1771-AM1, 1771-AM2
Keying Positions Between 10–12 and 14–16
Mounting Type 1771 I/O Chassis Slot Mount
Operating Temperature Range 32°F to 131°F (0°C to 55°C)
Storage Temperature Range -40°F to 185°F (-40°C to 85°C)
Dimensions (H Ă— W Ă— D) 10.5 Ă— 1.2 Ă— 6.2 inches
Weight 1.0 lbs
What's in the box?
  • 1 x Allen-Bradley 1771-IAD AC/DC Input Module
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