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Allen-Bradley 1769-PB2 CompactLogix DC Power Supply

Product Description

The 1769-PB2 is a DC power supply module designed for Allen-Bradley CompactLogix control systems, providing 24V DC input and delivering 5V DC (2.0A) and 24V DC (0.8A) outputs to power CompactLogix controllers, I/O modules, and communication interfaces. It is part of the 1769 Compact I/O series, known for its compact design and modular architecture in industrial automation applications .

Key Features

Wide Input Voltage Range
- 19.2–31.2V DC input (compatible with industrial power standards) .
- Low power consumption: 50VA @ 24V DC .
Dual Output Channels
- 5V DC @ 2.0A (for controller and backplane power) .
- 24V DC @ 0.8A (for I/O module power) .
Compact & Modular Design
- DIN rail or panel mounting (dimensions: ~90 × 87 × 40 mm) .
- Hot-swappable (RIUP compliant) for reduced downtime .
Safety & Protection
- Non-replaceable fuse for overcurrent protection .
- LED status indicators for power monitoring .
Compatibility
- Works with CompactLogix L3x, MicroLogix 1500, and Compact GuardLogix systems.
- Supports up to 16 I/O modules (requires proper power distribution) .

Technical Specifications

Parameter	Value
Model	1769-PB2
Input Voltage	19.2–31.2V DC
Output Voltages	5V DC (2.0A), 24V DC (0.8A)
Power Consumption	50VA @ 24V DC
Operating Temp.	0°C to +60°C
Protection Rating	IP20 (requires enclosure)
Dimensions	~90 × 87 × 40 mm
Weight	~0.5 kg

Applications

CompactLogix L3x Controllers (e.g., 1769-L31, 1769-L32E) .
Distributed I/O Systems (for sensors, actuators, and communication modules) .
Machine Control (packaging, conveyor systems) .

Installation & Usage Notes

Wiring
- Use shielded cables for noise immunity .
- Ensure proper grounding to avoid EMI interference .
Power Distribution
- Avoid overloading (max 2.0A @ 5V DC, 0.8A @ 24V DC) .
Maintenance
- Regularly check terminal connections for corrosion .