The Allen-Bradley 1756-PB72 is a standard DC power supply module designed for the ControlLogix platform. It provides reliable power distribution to the ControlLogix chassis, ensuring stable operation of the CPU, I/O modules, and communication adapters within the rack. This unit is engineered for industrial environments requiring a 24V DC input source.
Features
Designed specifically for the Allen-Bradley ControlLogix chassis system.
Supports an input voltage range of 18-32V DC.
Delivers a power output of 75W at 60 degC.
Robust chassis-mount design for secure installation.
Integrated protection against input voltage fluctuations.
Technical Specifications
Model
1756-PB72
Input Voltage
24V DC (18-32V DC range)
Input Power
95W
Output Power
75W at 60 degC
Max Inrush Current
30A
Module Type
Standard DC Power Supply
Mounting
Chassis Mount
Installation Guidelines
Ensure the ControlLogix chassis is powered down before installing or removing the power supply module.
Slide the module into the designated power supply slot on the left side of the chassis until it is fully seated.
Tighten the mounting screws to ensure a secure connection and proper chassis grounding.
Use appropriate wire gauges for the DC input terminals to prevent voltage drops and overheating.
Maintain adequate clearance around the module to allow for proper airflow and cooling, as the unit is rated for performance up to 60 degC.
Avoid routing high-voltage AC cables near the DC input wiring to minimize electromagnetic interference (EMI).
FAQ
Is the 1756-PB72 compatible with all ControlLogix chassis?
Yes, this power supply is designed to be compatible with standard ControlLogix chassis, provided the chassis has the appropriate slot for a power supply module.
What is the primary function of this module?
The 1756-PB72 converts 24V DC input power into the necessary voltages required by the backplane to power the modules installed in the ControlLogix rack.
