Allen Bradley 1756-PA72 ControlLogix AC Power Supply

Product Introduction

The Allen Bradley 1756-PA72 ControlLogix AC Power Supply is designed to provide reliable and regulated backplane power for ControlLogix automation systems. It converts standard industrial AC voltage into stable DC power required by the ControlLogix chassis. Installed on the left side of the rack, it becomes the primary power source for processors, communication modules, and I/O modules within the system.

This model is engineered for industrial environments where voltage stability, load consistency, and system uptime are critical. With a 20 Amp current rating and wide AC input capability, the 1756-PA72 supports demanding automation architectures, including multi-module chassis configurations.

Its design focuses on electrical robustness, internal protection, and compatibility with the ControlLogix platform, making it suitable for both new system installations and retrofit projects.

Product Specifications

Applications

• Industrial Automation Lines
Supplies stable rack power for ControlLogix PLC processors and distributed I/O modules in automated production systems.

• Process Control Installations
Used in chemical, oil & gas, water treatment, and other continuous process environments requiring dependable control power.

• Material Handling Systems
Ensures reliable backplane energy supply for motion controllers and communication modules.

• Power Generation Facilities
Provides internal chassis power in turbine control panels and plant monitoring systems where electrical stability is critical.

• Large Control Cabinets
Integrated into centralized PLC cabinets supporting multiple high-consumption modules.

Advantages

• Wide AC Voltage Compatibility
Supports both 120 VAC and 240 VAC systems without manual configuration.

• High 20 Amp Output Capacity
Capable of supporting fully populated ControlLogix racks under normal operating conditions.

• Built-In Industrial Protection
Features overcurrent limiting and thermal shutdown protection to prevent system damage.

• Stable Backplane Regulation
Maintains consistent DC voltage to reduce processor faults and module instability.

• Platform-Specific Integration
Designed exclusively for ControlLogix architecture, ensuring seamless electrical compatibility.

• Compact Mechanical Structure
Efficient footprint allows installation in space-constrained industrial panels.

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