1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
    1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
    1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
    1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C
1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C

1756-PA72/C | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V @ 10A, Series C

Part #: 1756-PA72/C Manufactured by: Allen-Bradley
Regular price
$499.38
Sale price
$499.38
Regular price
$609.00
3 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The 1756-PA72 provides regulated AC power to the ControlLogix platform, ensuring stable operation of controllers and I/O m...  Read more
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Product Description P/N: 1756-PA72/C

Description / Specifications

Description 

The Allen-Bradley 1756-PA72 is a ControlLogix standard AC power supply module designed to provide regulated backplane power for ControlLogix chassis. It operates with an input range of 85–265 VAC at 47–63 Hz and supplies up to 75 W of output power.

 

 

Technical Specifications 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-PA72/C
Manufacturer Rockwell Automation
Chassis Compatibility 1756-A4/A, 1756-A7/A, 1756-A10/A, 1756-A13/A, 1756-A17/A, 1756-A4/B, 1756-A7/B, 1756-A10/B, 1756-A13/B, 1756-A17/B, 1756-A4/C, 1756-A7/C, 1756-A10/C, 1756-A13/C, 1756-A17/C
Location 1756 Chassis Left Side
Hold Up time 5 cycles @ 85V AC, 50/60 Hz 6 cycles @ 120V AC, 50/60 Hz 6 cycles @ 200V AC, 50/60 Hz 6 cycles @ 240V AC, 50/60 Hz
Current Capacity 4A at 3.3VDC; 10 A at 5.1VDC and 2.8 A at 24VDC
Max Inrush Current 30 Amperes
Isolation Voltage 250 Volts Continuous
Input Voltage Range 85-265VAC
Nom Input Voltage 120/240VAC
Module Type Standard DC Power Supply
Dimensions 14.0 x 11.2 x 14.5 cm (5.51 x 4.41 x 5.71 in.)
Input Power 100 Watts
Input Frequency 47-63 Hertz
Power Output 75 Watts at 60 Celsius
Chassis Series A or B
Location Chassis - Left Side
Operating Temperature 32-140 Fahrenheit (0-60 Celsius)
Enclosure None

  

 

Information About 1756-PA72/C

The 1756-PA72 is part of the Allen-Bradley ControlLogix family of power supplies, developed for reliable chassis-level power distribution. It features nominal input ratings of 120/240 VAC, with a current capacity of 4 A at 3.3 VDC, 10 A at 5.1 VDC, and 2.8 A at 24 VDC. This module provides reinforced insulation rated at 250 V continuous and tested at 3,500 VDC for 60 seconds, ensuring safety and durability in industrial environments. With a power output of 75 W across its operating range (0–60 °C), it meets the requirements of demanding automation systems.

Key Features:

  • Input Voltage: Operates from 85–265 VAC, nominal 120/240 VAC, 47–63 Hz frequency range.
  • Current Capacity: Provides 4 A at 3.3 VDC, 10 A at 5.1 VDC, and 2.8 A at 24 VDC for backplane modules.
  • Power Output: Delivers 75 W of usable power at up to 60 °C, with 100 W input rating.
  • Electrical Protection: Integral overcurrent protection and reinforced insulation tested at 3,500 VDC.
  • Hold-Up Time: Maintains 5–6 cycles depending on input voltage, supporting system stability during dips.
  • Inrush Current: Handles up to 20–30 A at startup for reliable energization.
  • Environmental Ratings: Operates from 0–60 °C, 5–95% humidity, with robust shock and vibration resistance.
  • Installation: Mounts on the left side of Series A, B, and C ControlLogix chassis with open-style enclosure design.

The 1756-PA72 delivers the reliability and precision required for powering ControlLogix chassis and modules in industrial automation environments.


 

Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1756-PA72/C
Question: What is the 1756-PA72/C, and what are its main features?
Date Update:02/06/2025
Answer:

The 1756-PA72/C is a standard AC power supply module designed for use in ControlLogix systems. It accepts an input voltage range of 85–265VAC with a nominal input voltage of 120/240VAC. The module provides outputs of 4A at 3.3VDC, 10A at 5.1VDC, and 2.8A at 24VDC, supporting a variety of modules and devices on the backplane. It features reinforced insulation tested at 3500V DC for 60 seconds, ensuring high levels of electrical safety. Its compact design allows for straightforward integration into ControlLogix chassis.

Question: How does the 1756-PA72/C module protect against electrical faults?
Date Update:02/06/2025
Answer:

The 1756-PA72/C includes integral overcurrent protection, which prevents damage to the module and connected devices in case of electrical faults. It also features reinforced insulation tested to 3500V DC for 60 seconds, ensuring safe isolation between input and output. This design helps maintain system reliability, even in the presence of electrical disturbances. Overcurrent protection is critical in industrial environments where unexpected loads or faults can occur. This feature contributes to the safe and stable operation of the ControlLogix system.

Question: Where is the 1756-PA72/C module installed in a ControlLogix chassis?
Date Update:02/06/2025
Answer:

The module is designed to be installed in the leftmost position of the ControlLogix chassis. This dedicated power supply slot does not consume any of the main module slots, preserving space for I/O and controller modules. The module is secured directly to the chassis using mounting holes and hardware provided. Proper grounding connections must be made to ensure electrical safety and compliance.

Question: What is the maximum current capacity of the 1756-PA72/C at different voltage levels?
Date Update:02/06/2025
Answer:

The module provides 4A at 3.3VDC, 10A at 5.1VDC, and 2.8A at 24VDC, supporting a variety of ControlLogix modules. These current ratings allow the module to power multiple devices on the backplane simultaneously. Proper calculation of load requirements ensures that the module is not overloaded. These specifications support high-density installations with diverse module configurations. Adhering to these limits is essential for maintaining system reliability and performance.

Question: How should the 1756-PA72/C be maintained to ensure reliable operation?
Date Update:02/06/2025
Answer:
  • Regularly inspect wiring and terminal connections for signs of wear or looseness.
  • Monitor module status and check for any visible damage or abnormal LED indicators.
  • Ensure that the surrounding environment is within specified temperature and humidity ranges.
  • Keep the module free of dust and debris to maintain proper cooling and performance.
IQElectro is not an authorized distributor.
QElectro 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 standard AC power supply module designed to provide regulated backplane power for ControlLogix chassis. It operates with an input range of 85–265 VAC at 47–63 Hz and supplies up to 75 W of output power.

 

 

Technical Specifications 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-PA72/C
Manufacturer Rockwell Automation
Chassis Compatibility 1756-A4/A, 1756-A7/A, 1756-A10/A, 1756-A13/A, 1756-A17/A, 1756-A4/B, 1756-A7/B, 1756-A10/B, 1756-A13/B, 1756-A17/B, 1756-A4/C, 1756-A7/C, 1756-A10/C, 1756-A13/C, 1756-A17/C
Location 1756 Chassis Left Side
Hold Up time 5 cycles @ 85V AC, 50/60 Hz 6 cycles @ 120V AC, 50/60 Hz 6 cycles @ 200V AC, 50/60 Hz 6 cycles @ 240V AC, 50/60 Hz
Current Capacity 4A at 3.3VDC; 10 A at 5.1VDC and 2.8 A at 24VDC
Max Inrush Current 30 Amperes
Isolation Voltage 250 Volts Continuous
Input Voltage Range 85-265VAC
Nom Input Voltage 120/240VAC
Module Type Standard DC Power Supply
Dimensions 14.0 x 11.2 x 14.5 cm (5.51 x 4.41 x 5.71 in.)
Input Power 100 Watts
Input Frequency 47-63 Hertz
Power Output 75 Watts at 60 Celsius
Chassis Series A or B
Location Chassis - Left Side
Operating Temperature 32-140 Fahrenheit (0-60 Celsius)
Enclosure None

  

 

Information About 1756-PA72/C

The 1756-PA72 is part of the Allen-Bradley ControlLogix family of power supplies, developed for reliable chassis-level power distribution. It features nominal input ratings of 120/240 VAC, with a current capacity of 4 A at 3.3 VDC, 10 A at 5.1 VDC, and 2.8 A at 24 VDC. This module provides reinforced insulation rated at 250 V continuous and tested at 3,500 VDC for 60 seconds, ensuring safety and durability in industrial environments. With a power output of 75 W across its operating range (0–60 °C), it meets the requirements of demanding automation systems.

Key Features:

  • Input Voltage: Operates from 85–265 VAC, nominal 120/240 VAC, 47–63 Hz frequency range.
  • Current Capacity: Provides 4 A at 3.3 VDC, 10 A at 5.1 VDC, and 2.8 A at 24 VDC for backplane modules.
  • Power Output: Delivers 75 W of usable power at up to 60 °C, with 100 W input rating.
  • Electrical Protection: Integral overcurrent protection and reinforced insulation tested at 3,500 VDC.
  • Hold-Up Time: Maintains 5–6 cycles depending on input voltage, supporting system stability during dips.
  • Inrush Current: Handles up to 20–30 A at startup for reliable energization.
  • Environmental Ratings: Operates from 0–60 °C, 5–95% humidity, with robust shock and vibration resistance.
  • Installation: Mounts on the left side of Series A, B, and C ControlLogix chassis with open-style enclosure design.

The 1756-PA72 delivers the reliability and precision required for powering ControlLogix chassis and modules in industrial automation environments.


 

Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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