Allen-Bradley 1769-IA16 | 16-Channel AC Input Module

Overview

The 1769-IA16 is a Compact I/O input module from Allen-Bradley, engineered for use with CompactLogix and MicroLogix 1500 controllers. It provides sixteen AC input channels, making it a reliable solution for digital signal acquisition in automation environments.

Electrical Specifications

The 1769-IA16 operates within a voltage range of 79 to 132 Volts AC, supporting a nominal input of 120 Volts AC. It functions at a frequency range of 47 to 63 Hertz, with an input delay of 20 milliseconds for both On and Off states. The module supports a maximum off-state voltage of 20 Volts AC and requires a minimum on-state voltage of 79 Volts AC. Each input channel draws between 5 to 12 milliamperes depending on the operating voltage.

Current and Power Data

At 5.1 Volts DC, the 1769-IA16 draws 115 milliamperes of current, while the backplane requires up to 1.4 Amperes at 24 Volts. Heat dissipation reaches 3.3 Watts under normal conditions, with thermal dissipation measured at 2.7 BTU per hour. The module’s power consumption is approximately 33.6 Watts, ensuring efficient operation across diverse applications.

Mechanical and Mounting Details

The 1769-IA16 measures 118 x 35 x 87 millimeters (4.65 x 1.38 x 3.43 inches) and weighs approximately 0.61 pounds or 280 grams. Including mounting tabs, its height extends to 138 millimeters (5.43 inches). The module supports both DIN rail and panel mounting, with a slot width of one. Wiring connections use removable terminal blocks designed for copper conductors rated at 90°C, supporting sizes between 22 to 14 AWG.

Functional Features

All sixteen input channels of the 1769-IA16 belong to a single group with internally connected commons. The removable terminal block simplifies wiring to I/O sensors and actuators while finger-safe covers enhance operator protection. The module supports up to eight connected units per power supply distance rating and integrates seamlessly with power supplies such as 1769-PA2, 1769-PB2, 1769-PA4, and 1769-PB4.

Reliability and Protection

The 1769-IA16 includes built-in electronic protection and supports safe wiring configurations for industrial use. Its enclosure type is open-style, designed for installation inside protective control panels. With consistent performance and robust specifications, it meets the needs of compact automation systems requiring precise AC input monitoring.