Allen Bradley 1794-IA16 Digital Input Module

The AB 1794-IA16 is a high-density digital input module from the FLEX I/O family, designed to monitor 16 discrete 110V AC input signals in industrial automation systems. Ideal for interfacing with AC sensors, switches, and pilot devices, this module offers a compact, modular solution for distributed control applications.

Engineered for reliability and integration flexibility, the 1794-IA16 is compatible with TB3 and TB3S terminal bases, allowing efficient DIN rail mounting and wiring in space-constrained control cabinets.

Technical Specifications

Model: 1794IA16
Series: FLEX I/O
Type: Digital Input Module
Input Channels: 16 digital inputs
Input Voltage Type: AC
Nominal Input Voltage: 110V AC
Application: AC signal acquisition for distributed I/O in process and machine control
Terminal Base Compatibility: TB3, TB3S

Electrical Specifications

Permitted Input Voltage: 110V AC nominal
Voltage Range: 79–132V AC typical
Input Frequency: 47–63 Hz
Input Current per Channel: Approx. 6.5 mA @ 110V AC
Input Type: Sink
Minimum ON Voltage: 74V AC
Maximum OFF Voltage: 20V AC
Debounce Filter: Fixed (approx. 8 ms)
Short Circuit Protection: Not applicable (input module)
Isolation: Optical isolation, input-to-backplane

Mechanical Specifications

Width: 94 mm
Height: 94 mm
Depth: 69 mm
Mounting Type: DIN rail via terminal base
Connection Type: Screw terminal (via TB3/TB3S)
Installation Orientation: Vertical recommended
Enclosure Type: IP20 when mounted in enclosure
Weight: Approx. 180 g

Environmental Specifications

Operating Temperature: 0…55 °C
Storage Temperature: –40…85 °C
Relative Humidity: 5% to 95% non-condensing
Shock Resistance: 30 g, 11 ms (IEC 60068-2-27)
Vibration Resistance: 2 g, 10–500 Hz (IEC 60068-2-6)
Altitude Rating: Up to 2000 m
Pollution Degree: 2
Certifications: CE, UL, cULus, RoHS
Explosion Safety: Not rated for gas or dust environments

Compliance & Communication

System Compatibility: FLEX I/O distributed platform
Protocol Support: Determined by installed FLEX adapter (EtherNet/IP, DeviceNet, etc.)
Diagnostics: Channel-level LED indicators (via base)
Configuration Software: RSLogix / Studio 5000
I/O Mapping: Automatically assigned through controller
Communication Ports: None (requires adapter module)

Key Features & Benefits

✅ 16 AC Input Channels – High-density input for 110V AC devices in distributed applications

✅ Optically Isolated Channels – Protects control logic from high-voltage transients

✅ Modular Terminal Base Mounting – Compatible with TB3 and TB3S for flexible wiring setups

✅ Compact FLEX Form Factor – Saves space in distributed and panel-mounted control systems

✅ Studio 5000 Compatible – Integrates seamlessly into Logix-based automation environments

📦 Order the Allen Bradley 1794-IA16 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 1794-IA16 prices. With 2 units currently in stock, this AC digital input module is available for next-day delivery—perfect for expanding your FLEX I/O system with reliable 110V AC signal acquisition.

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Drive Outlet Megastore – your trusted source for Allen Bradley FLEX I/O modules and digital signal acquisition solutions.