Allen-Bradley 1769-IQ32T CompactLogix 32-Point DC Input Module

Overview

The Allen-Bradley 1769-IQ32T is a high-performance Compact I/O module from the CompactLogix series. It provides 32 digital input points designed for 24V DC sink/source applications. Built for precise industrial automation, this module ensures reliable connectivity between controllers and field devices such as sensors, switches, and auxiliary contacts.

Key Features

The 1769-IQ32T offers high-density input capability within a compact form factor. It supports four groups of eight input channels, allowing flexible sinking or sourcing configurations. The module connects via a 40-pin female connector (1746-N3), simplifying wiring and maintenance. Additionally, it’s compatible with Allen-Bradley 1492 wiring systems, ensuring consistent performance and easy integration.

Technical Specifications

Specification	Details
Manufacturer	Allen-Bradley
Series	CompactLogix / Compact I/O
Model Number	1769-IQ32T
Type	Compact DC Digital Input Module
Number of Inputs	32 (4 groups of 8)
Input Voltage Category	24V DC sink/source
Operating Voltage Range	10–30V DC @ 30°C; 10–26.4V DC @ 60°C
On-State Voltage	10V DC minimum
Off-State Voltage	5V DC maximum
Input Delay (On)	8 ms
Wire Size (Solid)	22–14 AWG
Wire Type	Copper, 90°C
Replacement Terminal Block	1769-RTBN18
Power Supply Compatibility	1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4
Distance Rating from Power Supply	8 modules
Compatible Controllers	MicroLogix 1500, CompactLogix
Wiring Accessory Included	1746-N3 Cable Assembly
Mounting Options	DIN rail or panel mount

Design and Construction

The Allen-Bradley 1769-IQ32T is engineered for compact installations while maintaining industrial-grade durability. Its tongue-and-groove interlocking mechanism ensures stable physical and electrical connection with adjacent modules. The design also allows quick module replacement without disturbing the wiring.

The unit’s write-on terminal labels make channel identification simple, even with the module door closed. This thoughtful design supports fast troubleshooting and system upgrades.

Performance and Reliability

The 1769-IQ32T module operates within a wide temperature range of 0°C to 60°C (32°F to 140°F), ensuring stable performance in demanding environments. It withstands vibrations up to 5 g @ 10–500 Hz and shock ratings of 30 g (panel mount) or 20 g (DIN rail). These robust specifications make it ideal for continuous operation in industrial automation systems.

Origin, Dimensions, and Weight

Country of Origin: USA
Dimensions: 118 x 35 x 87 mm (H x W x D)
Weight: 0.31 lbs (0.14 kg)

Conclusion

The Allen-Bradley 1769-IQ32T is a compact, high-density input solution that provides superior performance and easy integration within CompactLogix and MicroLogix 1500 control systems. With its reliable 24V DC input capability, modular design, and industrial-grade durability, it stands as a dependable component for modern automation infrastructures.