Allen Bradley 1756-PB75R/A ControlLogix Rack-mount Redundant Power Supply
Allen Bradley 1756-PB75R/A ControlLogix Rack-mount Redundant Power Supply
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Brand:Allen Bradley PLC Item No.:1756-PB75R/A Product Origin:USA Product Dimensions:175 x 145 x 137 mm Product Weight:1.45 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen-Bradley 1756-PB75R/A ControlLogix Rack-mount Redundant Power Supply is a high-reliability industrial power module designed for Rockwell Automation ControlLogix systems. It delivers stable DC backplane power to PLC controllers and I/O modules while supporting redundant operation for maximum system uptime. Built for mission-critical environments, it ensures continuous and dependable performance in power generation, oil & gas, manufacturing, and process automation applications where system availability is essential.
Technical Specifications
Parameter
Specification
Product Model
1756-PB75R/A
Function
Redundant Power Supply
System
Allen-Bradley ControlLogix
Output Type
DC backplane power
Architecture
Redundant configuration
Mounting Type
Rack / chassis installation
Operating Environment
Industrial-grade conditions
Input Voltage
DC input (system dependent)
Output Power
75 W class (ControlLogix backplane)
Housing
Rugged industrial module
Dimensions
175 × 145 × 137 mm
Weight
1.45 kg
Protection
Industrial noise and EMI resistant
Compatibility
ControlLogix chassis systems
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1756-PB75R/A
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Applications
• ControlLogix redundant power architecture systems
Provides stable backplane power for high-availability PLC and automation control systems.
• Industrial process control systems
Supports continuous operation of controllers, I/O modules, and communication modules in process environments.
• Power generation and utility automation
Ensures reliable power delivery for turbine, boiler, and plant-wide control systems.
• Oil & gas and petrochemical facilities
Maintains uninterrupted controller operation in harsh and safety-critical environments.
• Large-scale industrial automation infrastructure
Used in redundant ControlLogix chassis setups requiring maximum system uptime.
Key Advantages
• Redundant power supply design
Improves system availability by ensuring continuous operation during power module failure scenarios.
• High-reliability chassis power delivery
Provides stable DC backplane power for ControlLogix modules.
• Industrial-grade durability
Designed for long-term operation in demanding environments with vibration and electrical noise.
• Hot-swappable capability support
Allows maintenance without shutting down the entire control system (depending on configuration).
• Seamless integration with ControlLogix chassis
Optimized for Allen-Bradley Rockwell Automation PLC architectures.
Technical FAQs
1. What is the main function of the 1756-PB75R/A?
It provides redundant DC power to a ControlLogix chassis.
2. What does “redundant” mean in this power supply?
It means two power supplies can operate together, so one can take over if the other fails.
3. What systems is it used with?
It is designed for Allen-Bradley ControlLogix PLC systems.
4. Is it suitable for critical industrial applications?
Yes, it is widely used in high-availability control systems.
5. Does it support continuous operation during maintenance?
Yes, redundancy and hot-swap design help maintain uptime.
6. What type of power does it supply?
It supplies regulated DC backplane power to ControlLogix modules.
7. Can it be used in harsh environments?
Yes, it is designed for industrial-grade operating conditions.
8. Does it require calibration?
No calibration is required for this power module.
9. What happens if one power supply fails?
The redundant unit continues supplying power without system interruption.
10. Is it compatible with all ControlLogix racks?
It is compatible with supported ControlLogix chassis designed for 1756 power supplies.
