Allen-Bradley 1794-IA16 | Flex I/O AC Input Module

Overview

The Allen-Bradley 1794-IA16 is a Flex I/O AC input module designed for industrial automation systems. It provides 16 non-isolated discrete input channels capable of interfacing with various electrical and signaling devices. Its compact design ensures efficient installation on DIN rails.

Electrical Specifications

The 1794-IA16 operates with AC voltages ranging from 74 to 132 VAC and draws nominal input current of 12 mA at 120 VAC. The module’s on-state current ranges from 5.49 mA to 14.81 mA, while the off-state voltage remains below 20 VAC. Its Flexbus current is 20 mA, and power dissipation peaks at 6.4 Watts at maximum input voltage.

Mechanical and Environmental Features

This module has dimensions of 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in) and is suitable for DIN rail mounting. It operates in temperatures between 0°C to 55°C and tolerates storage temperatures of -40°C to 85°C. It withstands vibration up to 5g and shock up to 30g, ensuring reliable operation in industrial environments.

Compatibility and Connectivity

The 1794-IA16 integrates with Flex I/O terminal bases including 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TB3K, 1794-TB3SK, and 1794-TBNK. It communicates through Flex I/O adapters, supporting ControlNet, Ethernet, and Remote I/O protocols, making it highly adaptable for distributed control systems.

Indicators and Wiring

The module features 16 yellow status indicators, providing clear visual feedback for each input channel. Wire sizes are determined by the installed terminal base, and proper connections ensure optimal performance.

Technical Specifications

Key Features

• Provides 16 non-isolated AC input channels for versatile signal interfacing.

• Compatible with multiple Flex I/O terminal bases for flexible wiring.

• Supports ControlNet, Ethernet, and Remote I/O communication adapters.

• Compact DIN rail design ensures easy integration into distributed control systems.

• Operates reliably in industrial environments with wide temperature and shock tolerance.