Product Overview
When high-density discrete output control is required in space-constrained industrial environments, the Allen-Bradley 1769-OB32T provides a cost-effective, reliable solution. This 1769 Compact I/O module features 32 sourcing output channels with a nominal 24V DC voltage, making it ideal for driving solenoids, indicator lights, and other on/off devices. Its compact single-slot design minimizes panel space while delivering robust performance.
Cost-Benefit & ROI
Investing in the Allen-Bradley 1769-OB32T reduces total cost of ownership through long service life and minimal maintenance. With a maximum continuous output current of 2.0 A per point and 4.0 A per module, this module handles demanding loads without premature failure. The solid-state switching technology eliminates mechanical wear, lowering downtime and replacement costs. Over a typical five-year lifecycle, the 1769-OB32T can save up to 30% in maintenance expenses compared to relay-based alternatives.
Technical Specifications
| Parameter |
Value |
| Number of Outputs |
32 |
| Output Voltage Range (ON state) |
10.2 – 26.4 VDC |
| Nominal Output Voltage |
24 VDC |
| Max Continuous Current per Point |
2.0 A |
| Max Continuous Current per Module |
4.0 A |
| Backplane Current Draw @ 5V DC |
220 mA |
| Power Dissipation (max) |
1.10 W |
| Thermal Dissipation |
4.76 W |
| Output Delay (ON) |
0.5 ms |
| Output Delay (OFF) |
4 ms (typical) |
| Power Supply Distance Rating |
8 modules |
| Enclosure Type |
Open-type |
| Operating Temperature |
0 to 60 °C (32 to 140 °F) |
| Storage Temperature |
-40 to 85 °C (-40 to 185 °F) |
| Vibration |
5g @ 10 to 500 Hz |
| Operating Shock |
30 g |
| Wire Size (Stranded) |
22-16 AWG |
| Shipping Weight |
2 lbs |
| Series |
A and B |
Industry Applications
The Allen-Bradley 1769-OB32T excels in manufacturing lines, packaging machinery, and material handling systems. For example, in a bottling plant, the module controls 32 individual solenoid valves for filling stations, reducing wiring complexity and improving uptime. Its fast 0.5 ms ON response minimizes cycle time, directly increasing throughput. In warehouse automation, the 1769-OB32T drives conveyor zone indicators, ensuring reliable visual feedback for operators.
Installation & Setup Guidance
Mount the Allen-Bradley 1769-OB32T on a DIN rail directly into the 1769 backplane. Ensure the module is placed within 8 slots of the power supply to maintain proper current delivery. Use 22-16 AWG stranded wire with a torque of 0.68 Nm on the terminal block (replacement part number 1769-RTBN18). For high-current outputs, derate the ambient temperature when grouping multiple modules. The module's open-type enclosure requires installation in a pollution degree 2 environment.
Compatibility & Integration
This module integrates seamlessly with 1769 CompactLogix controllers and the MicroLogix 1500 controller. It communicates over the 1769 backplane, requiring no additional configuration for basic operation. For advanced diagnostics, pair with a compatible CompactLogix processor to monitor output status and fault conditions. The 1769-OB32T is also compatible with replacement terminal blocks and doors (1769-RD) for easy field maintenance.
Selection Guide & Purchasing Advice
Before purchasing the Allen-Bradley 1769-OB32T, verify your controller compatibility (CompactLogix or MicroLogix 1500). Ensure your power supply can support the backplane current draw of 220 mA at 5V DC. For high-density applications, consider the shipping dimensions (8x8x5 in.) and weight (2 lbs). UBEST Automation stocks genuine Allen-Bradley 1769-OB32T modules with full warranty and fast shipping. Contact us for bulk pricing or expedited delivery.