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1771-IAD Allen-Bradley
Original price
$450.00
-
Original price
$450.00
Original price
$450.00
$450.00
-
$450.00
Current price
$450.00
Trusted By
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The Allen-Bradley 1771-IAD is a PLC-5 series discrete AC/DC input module providing sixteen input channels capable of accepting 79 V to 138 V AC or DC signals. It installs in a 1771 I/O chassis (A1B-A4B, AM1, AM2) and is used to interface on-off field devices such as switches, pushbuttons, relay contacts. The module draws power from the chassis backplane and includes optoelectrical isolation and status indicators to support reliable system integration. Part number 1771-IAD.
Best Suited For
- PLC-5 rack-based discrete input expansion
- Interface with 120 V AC or DC field contacts
- Retrofitting legacy PLC-5 control systems
- Installation in standard 1771 chassis
Channels
16
Input voltage
79 - 138 V AC or DC
Backplane current
195 mA @ 5 V
Power dissipation (max)
8.8 W
Technical Specifications
I/O & Electrical
Number of inputs
16
On-state voltage range
79 V to 138 V AC or DC
Nominal input current
8.7 mA @ 120 V AC 50 Hz; 9.9 mA @ 120 V AC 60 Hz; 2.56 mA @ 125 V DC
On-state current (min)
5.95 mA @ 79 V AC 60 Hz; 1.5 mA @ 79 V DC
Off-state voltage (max)
43 V AC peak or DC
Off-state current (max)
3.0 mA @ 43 V AC 60 Hz; 0.8 mA @ 43 V DC
Input signal delay (Off → On)
AC: 5 ms (+3 ms) or 20 ms (+5 ms) selectable; DC: 3 ms (+0.1 ms) or 10 ms (+1 ms) selectable
Signal delay (On → Off)
25 ms (+5 ms)
Communication & Power
Power dissipation
8.8 W (max), 1.0 W (min)
Thermal dissipation
30.1 BTU/hr (max), 3.42 BTU/hr (min)
Backplane current
195 mA @ 5 V
Physical & Environmental
Operational temperature
0 °C to 60 °C (32 °F to 140 °F)
Storage temperature
-40 °C to 85 °C (-40 °F to 185 °F)
Relative humidity
5 % to 95 % (non-condensing)
Certifications
UL ListedCSA Class I Div 2CE
Isolation meets or exceeds UL 508 and CSA C22.2 No. 142; CSA Class I Division 2 Groups A, B, C, D; UL listed; CE marked.
