Overview
The Allen Bradley 1756-A4 ControlLogix 4-Slot Chassis is a compact modular rack for ControlLogix programmable automation controller (PAC) systems. It provides a backplane and mounting platform for controller, I/O, and communication modules, enabling reliable and efficient data exchange in small to medium industrial automation applications.
General Information
Part Number: 1756-A4
Manufacturer: Allen Bradley
Brand: Allen Bradley
Country of Origin: United States
Series: ControlLogix
Type: 4-Slot Chassis
Function: Backplane and module mounting for ControlLogix systems
Application: Industrial automation, process control, and distributed I/O systems
Compatibility: ControlLogix controllers and I/O modules
Installation: Panel or rack mounted industrial chassis
Power Specifications
Backplane Power: Provided through compatible ControlLogix power supply module
External Power Requirement: Supplied via system power unit
Power Distribution: Delivers stable power to all installed modules
Protection Features: Overcurrent and power fault protection via power supply
Efficiency: Ensures stable module operation and communication
Communication & Interface
Backplane Communication: High-speed ControlLogix backplane architecture
Module Slots: 4-slot configuration for mixed controller and I/O modules
Data Exchange: Real-time communication between installed modules
Compatibility: Supports ControlLogix processor and communication modules
Diagnostics: Monitored through controller software for system status and faults
Environmental
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Relative Humidity: 5% to 95% non-condensing
Shock Resistance: Industrial-grade durability
Vibration Resistance: Suitable for continuous factory operation
Installation Environment: Designed for industrial control cabinets
Dimensions & Weight
Dimensions (L × W × H): 508 × 203 × 508 mm
Weight: 0.75 kg
Compact and Efficient – Ideal for Modular Automation!