Chassis 1756-A7 Allen-Bradley

Description

The Allen-Bradley 1756-A7 is a seven-slot chassis designed for the ControlLogix Programmable Automation Controller (PAC) platform, serving as a core component for building ControlLogix control systems. It provides a backplane connection to support module insertion, with a power supply mounting slot located on the far left of the chassis that is compatible with slim, standard, and power module types. The chassis features functional and protective grounding terminals: functional grounding requires 8.3 square millimeters (8 AWG) solid or stranded copper wire with an insulation rating of 90 degrees Celsius or higher, while protective grounding requires 2.1 square millimeters (14 AWG) solid or stranded copper wire with the same insulation rating. Its physical dimensions measure 50.8 x 60.9 x 20.3 centimeters (20 x 24 x 8 inches), with an approximate weight of 1.10 kg (2.4 lbs); overall dimensions may vary slightly depending on the power supply type used. The unit mounts directly to a cabinet subpanel via four integrated mounting tabs, enabling flexible integration into industrial automation setups that rely on modular, scalable control architectures.