The 1756-PB72 power supply module is designed to provide power to the ControlLogix chassis and the modules within it. It accepts an input voltage range of 85-265V AC or 100-350V DC and provides a 24V DC output voltage to power the modules.

The module features a compact design and is installed in the ControlLogix chassis alongside other modules. It provides protection against overvoltage, short circuit, and overcurrent conditions to ensure the safe and reliable operation of the PLC system.

The 1756-PB72 power supply module is typically used in medium to large-scale applications where multiple modules are required to be powered simultaneously. It is compatible with various ControlLogix chassis and can support a wide range of input/output modules and communication modules.