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1771-IAD | Allen-Bradley PLC-5 Digital Input Module 120V AC/DC, 16 Input
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- $444.55
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- $444.55
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Product Description P/N: 1771-IAD
Description
The Allen-Bradley 1771-IAD is a PLC-5 digital input module with 16 channels designed for 120V AC or 125V DC signals. It interfaces ON/OFF field devices such as switches, pushbuttons, and auxiliary contacts with the controller. This module is widely used in process control and machine automation applications requiring reliable AC/DC input handling.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Industrial Automation |
| Part Number | 1771-IAD |
| Subcategory | Digital Input Modules |
| Manufacturer | Rockwell Automation |
| Module Type | Digital AC/DC Input Module |
| Number of Inputs | 16 |
| Voltage Category | 120V AC/DC |
| AC Operating Voltage | 79–138V AC |
| DC Operating Voltage | 79–138V DC |
| Backplane Current | 195 mA |
| Input Delays (AC On) | 5 ± 3 ms |
| Input Delays (AC Off) | 25 ± 5 ms |
| Input Delays (DC On) | 3 ± 0.1 ms or 10 ± 1 ms |
| Input Delays (DC Off) | 25 ± 5 ms |
| Max Off-State Current (AC) | 2.8 mA |
| Wiring Arm | 1771-WH |
| Addressing Modes | ½-slot, 1-slot, 2-slot |
| Module Location | 1771-A1B/A2B/A3B/A3B1/A4B, 1771-AM1/AM2 |
| Power Dissipation | 8.8 W max |
| Isolation | Optoelectrical isolation per channel |
| Operating Temperature | 0–60 °C (32–140 °F) |
| Standards | CE, UL, C-Tick, CSA, Marine |
| Dimensions | 3.5 × 6.5 × 2.0 in |
| Applications | PLC-5 AC/DC signal interfacing |
| Weight | 1.2 lb |
Information About 1771-IAD
The 1771-IAD is part of the Allen-Bradley 1771 Universal I/O family, designed for use with PLC-5 systems. It features 16 isolated input channels that accept signal voltages in the range of 79–138V AC or DC. Input response can be configured with selectable delays, including 5 ms or 20 ms for AC and 3 ms or 10 ms for DC transitions, while the typical OFF delay is 25 ms. The module supports ½, 1, and 2-slot addressing, enabling flexible integration in I/O chassis such as 1771-A1B through A4B, 1771-AM1, and 1771-AM2. Connections are made through the 1771-WH wiring arm, which allows for quick installation and module replacement without disconnecting field wiring. It consumes 195 mA at 5V from the backplane and has a maximum power dissipation of 8.8 W. With built-in input filtering and optoelectrical isolation, the 1771-IAD reduces electrical noise and protects system circuitry, ensuring stable performance in industrial environments.
Key Features:
- Design: 16-channel digital AC/DC input module for PLC-5 systems.
- Voltage Range: Operates at 120V AC (50/60 Hz) or 125V DC, with 79–138V input range.
- Performance: Selectable input delays (AC: 5/20 ms, DC: 3/10 ms) with 25 ms OFF delay.
- Compatibility: Fits 1771-A1B through A4B, 1771-AM1, and AM2 chassis with keying options.
- Connectivity: Uses the 1771-WH wiring arm for simplified wiring and hot-swappable replacement.
- Indicators: Front panel includes 1 green module status LED and 16 red input status LEDs.
- Protection: Optoelectrical isolation and input filtering suppress noise and transients.
- Power Requirements: 195 mA at 5V backplane current, with max power dissipation of 8.8 W.
The 1771-IAD delivers dependable AC/DC signal interfacing and robust noise immunity for PLC-5 automation systems.
Description
The Allen-Bradley 1771-IAD is a PLC-5 digital input module with 16 channels designed for 120V AC or 125V DC signals. It interfaces ON/OFF field devices such as switches, pushbuttons, and auxiliary contacts with the controller. This module is widely used in process control and machine automation applications requiring reliable AC/DC input handling.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | Industrial Automation |
| Part Number | 1771-IAD |
| Subcategory | Digital Input Modules |
| Manufacturer | Rockwell Automation |
| Module Type | Digital AC/DC Input Module |
| Number of Inputs | 16 |
| Voltage Category | 120V AC/DC |
| AC Operating Voltage | 79–138V AC |
| DC Operating Voltage | 79–138V DC |
| Backplane Current | 195 mA |
| Input Delays (AC On) | 5 ± 3 ms |
| Input Delays (AC Off) | 25 ± 5 ms |
| Input Delays (DC On) | 3 ± 0.1 ms or 10 ± 1 ms |
| Input Delays (DC Off) | 25 ± 5 ms |
| Max Off-State Current (AC) | 2.8 mA |
| Wiring Arm | 1771-WH |
| Addressing Modes | ½-slot, 1-slot, 2-slot |
| Module Location | 1771-A1B/A2B/A3B/A3B1/A4B, 1771-AM1/AM2 |
| Power Dissipation | 8.8 W max |
| Isolation | Optoelectrical isolation per channel |
| Operating Temperature | 0–60 °C (32–140 °F) |
| Standards | CE, UL, C-Tick, CSA, Marine |
| Dimensions | 3.5 × 6.5 × 2.0 in |
| Applications | PLC-5 AC/DC signal interfacing |
| Weight | 1.2 lb |
Information About 1771-IAD
The 1771-IAD is part of the Allen-Bradley 1771 Universal I/O family, designed for use with PLC-5 systems. It features 16 isolated input channels that accept signal voltages in the range of 79–138V AC or DC. Input response can be configured with selectable delays, including 5 ms or 20 ms for AC and 3 ms or 10 ms for DC transitions, while the typical OFF delay is 25 ms. The module supports ½, 1, and 2-slot addressing, enabling flexible integration in I/O chassis such as 1771-A1B through A4B, 1771-AM1, and 1771-AM2. Connections are made through the 1771-WH wiring arm, which allows for quick installation and module replacement without disconnecting field wiring. It consumes 195 mA at 5V from the backplane and has a maximum power dissipation of 8.8 W. With built-in input filtering and optoelectrical isolation, the 1771-IAD reduces electrical noise and protects system circuitry, ensuring stable performance in industrial environments.
Key Features:
- Design: 16-channel digital AC/DC input module for PLC-5 systems.
- Voltage Range: Operates at 120V AC (50/60 Hz) or 125V DC, with 79–138V input range.
- Performance: Selectable input delays (AC: 5/20 ms, DC: 3/10 ms) with 25 ms OFF delay.
- Compatibility: Fits 1771-A1B through A4B, 1771-AM1, and AM2 chassis with keying options.
- Connectivity: Uses the 1771-WH wiring arm for simplified wiring and hot-swappable replacement.
- Indicators: Front panel includes 1 green module status LED and 16 red input status LEDs.
- Protection: Optoelectrical isolation and input filtering suppress noise and transients.
- Power Requirements: 195 mA at 5V backplane current, with max power dissipation of 8.8 W.
The 1771-IAD delivers dependable AC/DC signal interfacing and robust noise immunity for PLC-5 automation systems.