Allen-Bradley | 1756-PA75 | ControlLogix

Product Description: Allen-Bradley 1756-PA75

The Allen-Bradley 1756-PA75 is a ControlLogix chassis-mounted power supply module, designed to deliver reliable backplane power for ControlLogix controllers and I/O modules. It provides 75 watts of output power at 24V DC, making it suitable for medium-to-large ControlLogix systems that require stable and regulated power. The module accepts a wide range of AC input voltages (85–265V AC) and is installed directly into the leftmost slot of the ControlLogix chassis. With built-in diagnostics and LED indicators, the 1756-PA75 ensures clear system status visibility and easy maintenance.

Product Type

• Chassis Power Supply Module
• Platform: ControlLogix
• Input Voltage: 85–265V AC
• Output Power: 75 Watts

Key Features

• Delivers 75W of backplane power for ControlLogix chassis
• Wide input range: 85–265V AC, 47–63 Hz
• Output voltage: 24V DC regulated
• Provides power to all modules within a ControlLogix chassis (except the power supply itself)
• Mounts in the leftmost slot of the chassis
• Integrated LED status indicators for input power and power supply status
• Designed for both standard and redundant system configurations
• Reliable and industrial-grade for continuous operation

Technical Specifications

• Input Voltage Range: 85–265V AC
• Input Frequency: 47–63 Hz
• Inrush Current: 20 A peak max
• Output Power Capacity: 75 W total
• Backplane Output Current:
  • 1.2 A @ 1.2V
• Status Indicators: Green/Red LEDs for Power and Fault
• Operating Temperature: 0°C to 60°C
• Installation: Left-most slot of any ControlLogix chassis
• Certifications: UL, cUL, CE, ATEX, RoHS

Application Areas

• ControlLogix-based automation systems
• Process control and factory automation
• High-reliability systems requiring continuous 24/7 operation
• Large-scale manufacturing, utilities, oil & gas, and transportation systems

Advantages

• High capacity for larger system configurations
• Wide AC input range suitable for global use
• Quick status identification with front- facing LEDs
• Easy integration into existing ControlLogix systems
• Long-term reliable power delivery for mission-critical operations