1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount
1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount
1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount
1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount
1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount
1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount
    1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount
    1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount
1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount
1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount

1756-PA72 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@10A Rack Mount

Part #: 1756-PA72 Manufactured by: Allen-Bradley
Regular price
$579.00
Sale price
$579.00
Regular price
3 in Stock
Condition: New – Open box
Shipping calculated at checkout.
Product Overview
Allen Bradley ControlLogix AC Power Supply Module with 120-240 Volts AC Input Voltage
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Product Description P/N: 1756-PA72

Description / Specifications

Description 

The Allen-Bradley 1756-PA72 is a ControlLogix AC power supply designed to deliver stable backplane power for ControlLogix chassis. It supports a wide input voltage range and includes status LEDs for monitoring operational conditions within industrial automation systems.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Power Supplies
Part Number 1756-PA72
Subcategory ControlLogix Power Supplies
Wattage 72 W
Input Voltage 85–265 VAC @ 47–63 Hz
Output Voltage 1.2 V / 5 VDC (up to 10 A)
Current Rating 20 A (total supply capability)
Display Type Status LEDs
Mounting Type Chassis
Operating Temperature 0–60 °C
Enclosure None (Open-Style)
Certifications CCC, CE, CSA, KC, Marine, NRTL, RCM, UL
Application ControlLogix Backplane Power
Weight 2.8 lb

  

 

Information About 1756-PA72

The 1756-PA72 belongs to the ControlLogix power supply family and provides 72 W of backplane power to support modules installed in a ControlLogix chassis. It operates from 85–265 VAC at 47–63 Hz, delivering regulated 5 VDC output at up to 10 A to power controllers, communication modules, and I/O components. The unit features an open-style chassis-mount design with status indicators for input and output conditions, supporting an operating temperature range of 0 to 60 °C. Certified to global industrial standards including UL, CE, CSA, KC, Marine, NRTL, CCC, and RCM, the 1756-PA72 ensures reliable performance in diverse control cabinet environments.

Key Features:

  • 72-Watt Backplane Power: Supplies stable, regulated power to ControlLogix modules, ensuring consistent system operation.
  • Wide AC Input Range: Accepts 85–265 VAC at 47–63 Hz for use in varied global electrical systems.
  • High Output Capacity: Provides 5 VDC at up to 10 A, capable of supporting multiple high-demand modules.
  • Status LED Indicators: Includes LED diagnostics to provide immediate visibility of input and output power conditions.
  • Open-Style Construction: Designed for chassis mounting without additional enclosure requirements.
  • Reliable Temperature Performance: Operates from 0 to 60 °C to accommodate typical industrial cabinet environments.
  • Certified Internationally: Meets CE, UL, CSA, KC, Marine, NRTL, CCC, and RCM standards for global deployment.
  • Durable Industrial Build: Engineered for long-term use within ControlLogix automation systems.

The 1756-PA72 delivers the reliability and precision required for stable power distribution in ControlLogix-based industrial control architectures.

Frequently Asked Questions about 1756-PA72
Question: What is the 1756-PA72 power supply?
Date Update:30/05/2025
Answer:

The 1756-PA72 is a 24V DC power supply used for the Allen-Bradley ControlLogix system. It provides reliable power to the ControlLogix chassis, including the controller and any connected I/O modules. The power supply is designed to handle high-performance applications requiring stable voltage and sufficient current to run the modules.

Question: Where can I find the manual for the 1756-PA72?
Date Update:30/05/2025
Answer:

The manual for the 1756-PA72 power supply can be found on the Rockwell Automation website under the Product Documentation section. The manual provides detailed information on installation, wiring, specifications, and troubleshooting. You can also access the manual within Studio 5000 or RSLogix 5000 if configuring the system with the ControlLogix controller.

Question: What is the maximum current the 1756-PA72 can supply?
Date Update:30/05/2025
Answer:

The 1756-PA72 can supply up to 7.2A of 24V DC current to the ControlLogix chassis and its connected I/O modules. This is suitable for most mid-sized ControlLogix systems. For larger systems, where more modules are added, you may need to consider multiple power supplies or a higher-rated power supply.

Question: How do I replace the 1756-PA72 power supply?
Date Update:30/05/2025
Answer:

Replacing the 1756-PA72 involves the following steps:

  • Power off the system: Ensure that the entire system is powered off to avoid electrical shock or damage to the modules.
  • Remove the faulty power supply: Disconnect the AC power connections and the 24V DC output connections to the faulty power supply. Then, unscrew or unlock the power supply from the 1756 chassis.
  • Install the new 1756-PA72: Mount the new power supply into the same slot in the ControlLogix chassis and secure it properly.
  • Reconnect the wiring: Reconnect the AC input and DC output wires to the corresponding terminals on the new power supply.
  • Power up the system: After making sure everything is properly connected, turn on the system and verify that the new power supply is providing the correct 24V DC output.

Ensure that the AC power source is turned off while performing the replacement to ensure safety.

Question: What do the status LEDs on the 1756-PA72 indicate?
Date Update:30/05/2025
Answer:

The 1756-PA72 power supply has LED indicators to show its status:

  • Green LED (Power OK): Indicates that the power supply is functioning properly and providing the correct 24V DC output.
  • Red LED (Fault): Indicates a fault condition, such as an overcurrent, overheating, or failure of the power supply. If the red LED is illuminated, check the system for possible issues such as short circuits, excessive load, or ventilation problems.

Always verify the status LEDs for a quick diagnosis of the system's power condition.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1756-PA72 is a ControlLogix AC power supply designed to deliver stable backplane power for ControlLogix chassis. It supports a wide input voltage range and includes status LEDs for monitoring operational conditions within industrial automation systems.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Power Supplies
Part Number 1756-PA72
Subcategory ControlLogix Power Supplies
Wattage 72 W
Input Voltage 85–265 VAC @ 47–63 Hz
Output Voltage 1.2 V / 5 VDC (up to 10 A)
Current Rating 20 A (total supply capability)
Display Type Status LEDs
Mounting Type Chassis
Operating Temperature 0–60 °C
Enclosure None (Open-Style)
Certifications CCC, CE, CSA, KC, Marine, NRTL, RCM, UL
Application ControlLogix Backplane Power
Weight 2.8 lb

  

 

Information About 1756-PA72

The 1756-PA72 belongs to the ControlLogix power supply family and provides 72 W of backplane power to support modules installed in a ControlLogix chassis. It operates from 85–265 VAC at 47–63 Hz, delivering regulated 5 VDC output at up to 10 A to power controllers, communication modules, and I/O components. The unit features an open-style chassis-mount design with status indicators for input and output conditions, supporting an operating temperature range of 0 to 60 °C. Certified to global industrial standards including UL, CE, CSA, KC, Marine, NRTL, CCC, and RCM, the 1756-PA72 ensures reliable performance in diverse control cabinet environments.

Key Features:

  • 72-Watt Backplane Power: Supplies stable, regulated power to ControlLogix modules, ensuring consistent system operation.
  • Wide AC Input Range: Accepts 85–265 VAC at 47–63 Hz for use in varied global electrical systems.
  • High Output Capacity: Provides 5 VDC at up to 10 A, capable of supporting multiple high-demand modules.
  • Status LED Indicators: Includes LED diagnostics to provide immediate visibility of input and output power conditions.
  • Open-Style Construction: Designed for chassis mounting without additional enclosure requirements.
  • Reliable Temperature Performance: Operates from 0 to 60 °C to accommodate typical industrial cabinet environments.
  • Certified Internationally: Meets CE, UL, CSA, KC, Marine, NRTL, CCC, and RCM standards for global deployment.
  • Durable Industrial Build: Engineered for long-term use within ControlLogix automation systems.

The 1756-PA72 delivers the reliability and precision required for stable power distribution in ControlLogix-based industrial control architectures.

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