Allen-Bradley 1756-PB72K ControlLogix DC Power Supply

Allen-Bradley 1756-PB72K ControlLogix DC Power Supply Module

The Allen-Bradley 1756-PB72K is a 75-watt DC power supply module designed specifically for ControlLogix chassis. It converts a 24V DC input into multiple voltage rails required by system modules.

Technical Specifications

• Brand & Model: Allen-Bradley 1756-PB72K
• Input Voltage: 18 - 32 Volts DC (24V DC nominal)
• Output Voltages: 1.2V DC, 3.3V DC, 5.1V DC, 24V DC
• Rated Output Power: 75 Watts at 60°C
• Hold-up Time: 40 milliseconds at 24V input
• Inrush Current: 30 Amps (peak)
• Operating Temperature: 0 to 60°C
• Weight: 0.77 kg (1.7 lbs)

Features & Benefits

• Multi-Voltage Output: Supplies all necessary voltages (1.2V, 3.3V, 5.1V, 24V) for ControlLogix processors, communication, and I/O modules from a single 24V DC source.
• Wide Input Range: Tolerates input voltage fluctuations from 18V to 32V DC, ensuring stable operation in typical industrial DC systems.
• Compact & Efficient: High power density (75W) in a lightweight module saves valuable control panel space.
• Robust Design: Built for reliable performance in standard industrial environments (0-60°C).

FAQ

• Q: What is the 1756-PB72K power supply used for?
  A: It is the primary power source for a ControlLogix rack, converting a plant 24V DC supply to the specific voltages needed by the controller, network, and I/O modules.
• Q: Why are multiple output voltages needed?
  A: Different modules within the ControlLogix system require different core voltages (e.g., 1.2V/3.3V for processors, 5V/24V for I/O and communications).
• Q: Can it be used in a redundant setup?
  A: Yes, multiple 1756-PB72K modules can be configured in a redundant power supply system to increase availability for critical applications.

Technical Documentation

Download Detailed Specifications (PDF)

For pricing and technical support for the 1756-PB72K, contact us at sale@etowonauto.com.