1756-PA75 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@13A, Rack Mount
1756-PA75 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@13A, Rack Mount
1756-PA75 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@13A, Rack Mount
    1756-PA75 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@13A, Rack Mount
1756-PA75 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@13A, Rack Mount

1756-PA75 | Allen-Bradley ControlLogix Power Supply 85-265VAC / 5V@13A, Rack Mount

Part #: 1756-PA75 Manufactured by: Allen-Bradley
Regular price
$749.00
Sale price
$749.00
Regular price
4 in Stock
Condition: New-Surplus Original Box
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Product Overview
Allen Bradley ControlLogix AC Power Supply Module with 120-220 Volts AC Input Voltage
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Product Description P/N: 1756-PA75

Description / Specifications

Description 

The Allen-Bradley 1756-PA75 is a ControlLogix power supply module designed to deliver reliable backplane power for ControlLogix controllers and I/O modules. It provides 75W of output power from a 120/240V AC input source.

 

 

Technical Specifications 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-PA75
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 2 cycles @ 85V AC, 60 Hz 6 cycles @ 120V AC, 60 Hz 20 cycles @ 220V AC, 60 Hz
Max Inrush Current 30 Amperes
Isolation Voltage 250 Volts Continuous
Input Voltage Range 85-265VAC
Nom Input Voltage 120/240VAC
Current Capacity 4A at 3.3VDC; 13 A at 5.1VDC and 2.8 A at 24VDC
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 Voltage 120-220 Volts AC
Voltage Range 85-265 Volts AC
Input Power 100 Watts
Input Frequency 47-63 Hertz
Power Output 75 Watts at 60 Celsius
Chassis Series B
Location Chassis - Left Side
Operating Temperature 32-140 Fahrenheit (0-60 Celsius)
Enclosure None

  

 

Information About 1756-PA75

The 1756-PA75 is part of the Allen-Bradley ControlLogix 1756 family, developed to support modular and scalable automation systems. This power supply accepts 85–265V AC input and delivers regulated 1.5A at 24V DC and 4A at 5.1V DC to the ControlLogix chassis backplane, with a total capacity of 75W. It installs in the left-most slot of the chassis and provides power to all modules to its right. The unit includes built-in status indicators for input power and module health, simplifying monitoring and troubleshooting. Ruggedly designed for industrial environments, the 1756-PA75 ensures stable and continuous operation of controllers and modules within the chassis.

Key Features:

  • Design: Standard power supply for ControlLogix chassis.
  • Input Voltage: Operates on 85–265V AC mains.
  • Output Power: Provides 75W of regulated backplane power.
  • Backplane Output: Supplies 1.5A at 24V DC and 4A at 5.1V DC.
  • Installation: Mounts in the left-most chassis slot to power system modules.
  • Diagnostics: LED indicators for input status and module health.
  • Compatibility: Works with all 1756 ControlLogix controllers and I/O modules.
  • Application Range: Suitable for machine control, process automation, and distributed I/O.

The 1756-PA75 delivers the stable, regulated power required for dependable operation of ControlLogix automation systems.



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-PA75
Question: What kind of product is the 1756-PA75 and what are its main features?
Date Update:30/05/2025
Answer:

The 1756-PA75 is a standard AC power supply module from Allen-Bradley, specifically designed for the ControlLogix platform. It provides backplane power to energize all modules in the chassis, supporting key voltages such as 3.3V, 5.1V, and 24V DC. This power supply is installed on the leftmost slot of the chassis and ensures stable operation of automation systems. It supports a broad input voltage range of 85-265VAC at 47-63 Hz.

Question: How does the 1756-PA75 handle power interruptions?
Date Update:30/05/2025
Answer:

The module provides a hold-up time of 2 cycles at 85V AC, 60 Hz; 6 cycles at 120V AC, 60 Hz; and 20 cycles at 220V AC, 60 Hz. This hold-up time keeps the system operational during short power fluctuations. It helps protect critical processes from unexpected interruptions. Proper wiring and grounding ensure the module can effectively handle transient conditions.

Question: How should the 1756-PA75 be installed in the ControlLogix chassis?
Date Update:30/05/2025
Answer:
  • Install in the dedicated leftmost slot of the ControlLogix chassis.
  • Ensure secure connections to prevent power issues.
  • Verify input voltage compatibility before energizing the system.

Following these steps ensures proper system operation and reliable module performance.

Question: What current capacity does the 1756-PA75 provide for the backplane?
Date Update:30/05/2025
Answer:

The module supplies:

  • 4A at 3.3VDC
  • 13A at 5.1VDC
  • 2.8A at 24VDC

This ensures that all installed modules receive adequate power for reliable operation. Proper load calculation is essential to prevent system overloads.

Question: Is the 1756-PA75 still in production?
Date Update:30/05/2025
Answer:

Yes, the 1756-PA75 is currently in production with an Active lifecycle status. This means it’s fully supported and available for new installations. Users can confidently incorporate this module into their ControlLogix systems. Rockwell Automation continues to provide technical support and spare parts for this model.

Question: Is special hardware configuration required for the 1756-PA75?
Date Update:30/05/2025
Answer:

Yes, the module requires basic hardware configuration, including proper voltage selection and load balancing. Users must verify compatibility with installed modules and overall system load. This ensures reliable operation and avoids overloading the power supply. Following Rockwell’s guidelines helps ensure safe and effective system performance.

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-PA75 is a ControlLogix power supply module designed to deliver reliable backplane power for ControlLogix controllers and I/O modules. It provides 75W of output power from a 120/240V AC input source.

 

 

Technical Specifications 

Brand Allen-Bradley
Series ControlLogix
Part Number 1756-PA75
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 2 cycles @ 85V AC, 60 Hz 6 cycles @ 120V AC, 60 Hz 20 cycles @ 220V AC, 60 Hz
Max Inrush Current 30 Amperes
Isolation Voltage 250 Volts Continuous
Input Voltage Range 85-265VAC
Nom Input Voltage 120/240VAC
Current Capacity 4A at 3.3VDC; 13 A at 5.1VDC and 2.8 A at 24VDC
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 Voltage 120-220 Volts AC
Voltage Range 85-265 Volts AC
Input Power 100 Watts
Input Frequency 47-63 Hertz
Power Output 75 Watts at 60 Celsius
Chassis Series B
Location Chassis - Left Side
Operating Temperature 32-140 Fahrenheit (0-60 Celsius)
Enclosure None

  

 

Information About 1756-PA75

The 1756-PA75 is part of the Allen-Bradley ControlLogix 1756 family, developed to support modular and scalable automation systems. This power supply accepts 85–265V AC input and delivers regulated 1.5A at 24V DC and 4A at 5.1V DC to the ControlLogix chassis backplane, with a total capacity of 75W. It installs in the left-most slot of the chassis and provides power to all modules to its right. The unit includes built-in status indicators for input power and module health, simplifying monitoring and troubleshooting. Ruggedly designed for industrial environments, the 1756-PA75 ensures stable and continuous operation of controllers and modules within the chassis.

Key Features:

  • Design: Standard power supply for ControlLogix chassis.
  • Input Voltage: Operates on 85–265V AC mains.
  • Output Power: Provides 75W of regulated backplane power.
  • Backplane Output: Supplies 1.5A at 24V DC and 4A at 5.1V DC.
  • Installation: Mounts in the left-most chassis slot to power system modules.
  • Diagnostics: LED indicators for input status and module health.
  • Compatibility: Works with all 1756 ControlLogix controllers and I/O modules.
  • Application Range: Suitable for machine control, process automation, and distributed I/O.

The 1756-PA75 delivers the stable, regulated power required for dependable operation of ControlLogix automation systems.



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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