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Allen-Bradley 1769-OB32T Compact I/O Module

Product Description

The 1769-OB32T is a 32-point, 24V DC sourcing digital output module designed for Allen-Bradley CompactLogix and MicroLogix 1500 control systems. It provides high-density output control for industrial automation applications, supporting distributed I/O configurations with removable terminal blocks (RTB) for easy wiring and maintenance .

Key Features

High-Density Outputs
- 32 sourcing (PNP) digital outputs (24V DC) .
- Removable terminal block (RTB) for simplified wiring .
Fast Response & Diagnostics
- Turn-on delay: 0.5 ms / Turn-off delay: 4 ms .
- Per-point status LEDs for troubleshooting .
Robust Industrial Design
- DIN rail or panel mounting (dimensions: 118 × 35 × 87 mm) .
- IP20 protection (requires enclosure for harsh environments) .
Compatibility & Integration
- Works with CompactLogix L3x, Compact GuardLogix, and MicroLogix 1500 .
- Hot-swappable (RIUP compliant) for reduced downtime .
Safety & Protection
- Surge current: 2.0A for 10 ms (repeatable every 2 sec) .
- Short-circuit and overcurrent protection .

Technical Specifications

Parameter	Value
Model	1769-OB32T
Output Type	32-point sourcing (24V DC)
Voltage Range	10.2–26.4V DC
Max Load Current	0.5A per point (resistive)
Leakage Current	≤0.1 mA (off state)
Power Consumption	5.1V @ 220 mA, 4.67W max dissipation
Isolation Voltage	1500V AC (channel-to-ground)
Operating Temp.	0°C to +60°C
Weight	230 g (0.51 lb)

Applications

Motor Control (relay/contactor activation) .
Packaging Machines (conveyor, actuator control) .
Process Automation (valve, solenoid control) .

Installation & Usage Notes

Wiring
- Use shielded cables for noise immunity .
- Terminal torque: 0.68 Nm (6 lb-in) .
Configuration
- Program via Studio 5000 Logix Designer or RSLogix 5000.
- Set electronic keying to "Compatible Mode" for flexibility .
Maintenance
- Monitor heat dissipation (max 4.67W) .
- Avoid continuous high-load operation (>0.5A per point) .