1769-PA2 CompactLogix Power Module (Industrial-Grade Dual Output Supply)

The 1769-PA2 represents a mission-critical power solution for CompactLogix automation architectures, engineered to deliver stable, dual-rail power distribution in demanding industrial environments. This AC-input power module provides simultaneous 5V DC (2A) and 24V DC (0.8A) outputs, supporting both backplane logic circuits and field-level I/O devices within a single compact form factor. Built for manufacturers who demand uncompromising reliability, the 1769-PA2 operates across a universal 85-265V AC input range, eliminating voltage compatibility concerns across global installations.

Designed for integration into Allen-Bradley CompactLogix 1769 control platforms, this power supply serves as the foundation for automated production lines, process control networks, and machine-level control systems. Whether you're retrofitting legacy equipment or deploying new automation infrastructure, the 1769-PA2 delivers consistent performance in environments ranging from climate-controlled data acquisition systems to harsh factory floors with temperature extremes and electrical noise.

With built-in protection circuits, LED diagnostics, and tool-free DIN rail mounting, the 1769-PA2 minimizes installation time while maximizing system uptime. Its compact 35mm width conserves valuable panel space, making it the preferred choice for space-constrained enclosures and distributed control architectures.

Core Features & Benefits

✓ Universal Input Voltage Compatibility
85-265V AC operation (47-63 Hz) eliminates the need for voltage-specific models, simplifying inventory management and enabling seamless deployment across international facilities with varying power standards.

✓ Dual Independent Output Rails
5V DC at 2A powers backplane controllers and communication modules, while 24V DC at 0.8A supports field devices and sensor networks—reducing component count and wiring complexity by 40% compared to separate power supplies.

✓ Industrial-Hardened Construction
Operates reliably from 0°C to 60°C with 95% humidity tolerance, meeting UL/cUL/CE/RCM certifications for deployment in pharmaceutical clean rooms, food processing facilities, and heavy manufacturing environments.

✓ Integrated Fault Protection
Automated overcurrent shutdown and short-circuit isolation protect downstream equipment from damage, reducing unplanned downtime by up to 60% and extending component lifespan.

✓ Rapid Visual Diagnostics
Front-panel LED indicators provide instant power status verification during commissioning, troubleshooting, and routine maintenance—cutting diagnostic time by 75% versus multimeter-based testing.

✓ Space-Optimized Footprint
87mm × 35mm × 118mm dimensions fit standard CompactLogix chassis slots, enabling high-density control panel layouts that reduce enclosure costs by 20-30% in multi-zone installations.

Application Scenarios

→ Automated Assembly & Packaging Lines
Powers CompactLogix controllers managing robotic pick-and-place operations, conveyor synchronization, and vision inspection systems in consumer goods manufacturing. The wide input voltage range maintains stable operation during peak demand periods when facility power fluctuates.

→ Process Control & Monitoring Systems
Supports continuous operation in chemical processing, water treatment, and HVAC control applications where 24/7 reliability is non-negotiable. The dual outputs eliminate the need for separate logic and field power supplies, reducing failure points by 50%.

→ Material Handling & Logistics Automation
Enables distributed control architectures in warehouse sortation systems, AGV charging stations, and inventory management networks. Compact size allows installation in mobile equipment and space-limited junction boxes.

→ Machine Tool & CNC Integration
Provides clean, regulated power for CompactLogix-based machine controllers in metalworking, woodworking, and plastics fabrication. Built-in filtering reduces electrical noise interference that can cause positioning errors or communication faults.

→ Food & Beverage Production
Meets sanitary design requirements for washdown environments while maintaining IP20 protection. Powers control systems for filling lines, pasteurization equipment, and batch processing operations in compliance with FDA/USDA standards.

Technical Parameters & Selection Guide

Selection Criteria: Calculate total 5V DC current draw from all backplane modules (controller + I/O + communication). If total exceeds 1.6A, consider the 1769-PA4 (4A/2A selectable). For DC input applications, specify the 1769-PB2 or 1769-PB4 models. Always include 20% safety margin in power budget calculations.

Extended Functions

Redundant Power Configuration: Deploy dual 1769-PA2 modules in parallel for N+1 redundancy in critical applications. Each module operates independently, with automatic load sharing ensuring continuous operation during single-unit failure or maintenance.

Remote Monitoring Integration: Combine with 1769-SDN DeviceNet scanner or 1769-AENTR EtherNet/IP adapter to enable real-time power status monitoring via SCADA/HMI systems. Track voltage levels, current draw, and fault conditions for predictive maintenance scheduling.

Custom Voltage Configurations: Contact our engineering team for modified output voltages (12V, 15V, 48V) to support specialized sensor networks or legacy equipment integration within CompactLogix architectures.

Delivery & Service Assurance

Lead Time: In-stock units ship within 24-48 hours via expedited carriers. Custom configurations or bulk orders (50+ units) require 7-14 business days for factory preparation and quality verification.

Warranty Coverage: Comprehensive 12-month warranty covers manufacturing defects, component failures, and workmanship issues. Extended 36-month coverage available for critical infrastructure deployments.

Technical Support: Direct access to certified automation engineers for installation guidance, troubleshooting assistance, and system integration consulting. Average response time: 4 hours during business hours, 24-hour emergency support for production-down situations.

Documentation Package: Every shipment includes installation manual, wiring diagrams, dimensional drawings, and compliance certificates. Digital resources available via QR code for firmware updates and application notes.

Frequently Asked Questions

Q: How many I/O modules can the 1769-PA2 power supply support in a typical configuration?
A: The 2A output typically supports 8-12 standard I/O modules, depending on module type. Digital I/O modules draw 50-100mA each, while analog modules consume 150-250mA. Calculate total current draw and maintain 20% reserve capacity for system stability.

Q: Can I use the 1769-PA2 with L3x series CompactLogix controllers for machine automation?
A: Yes, the 1769-PA2 is fully compatible with all CompactLogix controller families including L20, L30, L35, L37, and L38 processors. It also supports Compact GuardLogix safety controllers when paired with appropriate safety I/O modules.

Q: What happens if my application exceeds the 2A current rating during operation?
A: The integrated overcurrent protection circuit automatically shuts down the 5V output to prevent damage. The fault LED illuminates, and you must reduce the load or upgrade to the 1769-PA4 (4A capacity) before the system will restart.

Q: Does the power supply require external cooling fans in high-temperature environments?
A: No external cooling is necessary. The 1769-PA2 uses convection cooling and operates reliably up to 60°C ambient temperature when mounted vertically with proper ventilation clearances (50mm minimum on all sides).

Q: Is the 24V DC output isolated from the 5V DC output for noise immunity?
A: Both outputs share a common ground reference but include independent regulation circuits. For applications requiring galvanic isolation, use external DC-DC converters or specify the 1769-IQ16 isolated input modules.

Q: Can I hot-swap the 1769-PA2 power supply during system operation for maintenance?
A: Hot-swapping is not recommended and will cause system shutdown. For maintenance without downtime, install redundant power supplies or schedule replacement during planned maintenance windows. Always follow LOTO procedures.

Ready to Optimize Your Control System Power Architecture?

Contact our automation specialists today for personalized power supply selection, system design consultation, or volume pricing on multi-site deployments. Our team provides same-day quotations and can expedite delivery for urgent production requirements.

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