Allen-Bradley | 1756-A7 | ControlLogix 7

Product Description: Allen-Bradley 1756-A7

The Allen-Bradley 1756-A7 is a ControlLogix 7-slot chassis, designed to house and interconnect ControlLogix system modules, including power supplies, controllers, communication modules, and I/O modules. It provides the backplane infrastructure that allows high-speed communication between modules and supplies mechanical support within a control system. As part of the Logix5000 family, the 1756-A7 is used in large- scale automation and process control systems where modularity, flexibility, and high performance are essential.

Product Type

• Chassis / Backplane
• ControlLogix Series
• Slots: 7

Key Features

• 7-slot chassis for housing ControlLogix modules
• High- speed backplane bus for fast data transfer between modules
• Supports redundant power supplies and controllers
• DIN rail or panel mountable
• Chassis grounding connection for electrical safety
• Aluminum construction for durability and heat dissipation
• Used with 1756 ControlLogix power supplies and modules

Technical Specifications

• Backplane Current Capacity:
  • 1.5 A at 1.2V DC
• Slots: 7 module slots (including controller, I/O, communication modules)
• Mounting Type: Panel mount or DIN rail (with accessory)
• Operating Temperature: 0 °C to +60 °C
• Storage Temperature: –40 °C to +85 °C
• Relative Humidity: 5% to 95% non-condensing
• Shock Resistance: 30g operational
• Vibration: 2g from 10–500 Hz
• Dimensions (HxWxD): Approx. 130 mm x 328 mm x 145 mm
• Weight: Approx. 1.4 kg
• Certifications: UL, CE, cULus, ATEX, IECEx, KC

Application Areas

• Control panels in industrial automation systems
• Process control in oil & gas, water treatment, food & beverage
• High-speed manufacturing and motion control systems
• Distributed control systems (DCS) and SCADA architectures

Advantages

• Modular design supports flexible system expansion
• Reliable high-speed data exchange via backplane
• Compatible with wide range of ControlLogix modules
• Durable build for industrial environments
• Easy integration into existing Rockwell Automation architectures