Allen-Bradley 1756-A4 ControlLogix 4-Slot Chassis

The Allen-Bradley 1756-A4 ControlLogix 4-Slot Chassis is a modular PLC frame designed to house ControlLogix controllers, I/O modules, and communication modules within industrial automation systems. It provides four module slots and uses a ControlLogix high-speed backplane to enable fast data transfer and reliable power distribution between installed modules, in a panel-mount enclosure. The chassis requires an external ControlLogix power supply module and operates from 0°C to 60°C, ensuring compatibility with the ControlLogix platform for compact machine control panels, packaging lines, conveyors, and other automation systems. Common replacements for this chassis include Allen-Bradley 1756-A7, 1756-A10, and 1756-A13.