Manufacturer: Rockwell Automation
Brand: Alan Bradley
Part Number/Catalog number: Model 1756-A7XT
Series: ControlLogix
Module type: Chassis
The Allen-Bradley 1756-A7XT is a seven-slot ControlLogiX-XT chassis belonging to the Bulletin 1756 ControlLogix chassis family. Any module can be installed into any of the seven slots, which have slot rails and snap-hold functions for easy and secure installation. It is only used for horizontal rear panel mounting. It has direct mounting space and is suitable for any Bulletin 1756 power module. It is an important part of building a modular ControlLogix system.
The 1756-A7XT module is ideal for panel mounting with a minimum cabinet size of 20 x 24 x 8 inches. It weighs about 2.4 pounds. It requires solid or stranded copper wire rated at 194 °F or higher with a functional ground rating of 8.3 mm² (8 AWG) and a protective ground rating of 2.1 mm² (14 AWG).
The 1756-A7XT chassis backplane provides high-speed communication between modules while distributing power to each module in the chassis. It is rated for extreme temperature environments and can withstand an operating temperature range of -13 to 158 °F with a relative humidity of 5-95%. It features an advanced conformal coating that improves survivability in ISA G3 environments.
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