Allen-Bradley 1756-A17 Chassis

The Allen-Bradley 1756-A17 is a 17-slot ControlLogix chassis that serves as the backplane housing for modular I/O and communications cards in mid- to large-size automation architectures. Measured at roughly 30 by 36 by 8 inches and weighing about 4.8 pounds, the open-style chassis is designed for horizontal mounting in industrial cabinets and enclosures. Its backplane provides power to installed modules with a maximum dissipation of 6 watts; the backplane current is rated for up to 10 A at 5 V DC and 2.8 A at 24 V DC. The chassis supports 17 slots for ControlLogix modules, enabling a broad range of I/O, control, and networking cards to be installed within a single rack. Designed to integrate with other 1756-series components, this chassis offers a scalable foundation for assembling large, centralized ControlLogix racks in complex automation systems.