1756-PA75R Allen-Bradley ControlLogix AC Redundant Power Supply

Product Description

Configured for ControlLogix chassis power distribution, the Allen-Bradley 1756-PA75R (1756-PA75 family) provides AC input conversion and redundant chassis power operation. It accepts 85-265 VAC input and supplies regulated DC rails for the ControlLogix backplane, with a maximum output power of 75 W. (rockwellautomation.com)

Hardware Specifications

The electrical ratings and physical dimensions are specified by Rockwell Automation for the 1756-PA75R. (Rockwell Automation)

ControlLogix Backplane Power and Redundancy

The 1756-PA75R supplies multiple DC rails used by the ControlLogix chassis backplane. Its rated outputs include 5.1 VDC at 13 A, 3.3 VDC at 4 A, 1.2 VDC at 1.5 A, and 24 VDC at 2.8 A. The unit supports redundant power-supply configurations through the ControlLogix redundant power architecture. (Rockwell Automation)

Redundant operation uses the associated chassis power components and connection cabling. The 1756-CPR2 cable is specified for the redundant power-supply connection. Annunciator wiring can provide remote indication of power-supply status for fault detection. (rockwellautomation.com)

Frequently Asked Questions

Q: Does the 1756-PA75R provide 24 VDC as its primary chassis output?
A: No. The chassis power outputs include 5.1 VDC, 3.3 VDC, 1.2 VDC, and 24 VDC rails. The 5.1 VDC output is rated at 13 A, while the 24 VDC output is rated at 2.8 A. (Rockwell Automation)

Q: Can one 1756-PA75R be used for a redundant power configuration?
A: Redundant operation requires the appropriate ControlLogix redundant power-supply architecture and associated chassis components. The 1756-PA75R is identified by Rockwell Automation as a redundant power supply. (Rockwell Automation)

Q: What is the maximum input inrush current?
A: The specified maximum inrush current is 20 A. (Rockwell Automation)

Field Installation Guidelines

Install the 1756-PA75R in a compatible ControlLogix chassis and use the specified redundant power components and connection cable. Verify the AC supply voltage and frequency before energizing the unit.

Route AC power conductors separately from low-level analog and communication wiring. Connect protective earth and chassis grounding according to the ControlLogix installation requirements. Tighten field terminals using the specified conductor and torque requirements.

For redundant configurations, install the associated chassis adapter and redundant power cable according to the hardware installation documentation. Do not modify the redundant power interconnection or substitute non-specified cables. (Rockwell Automation)

Other Attributes

• Series: Allen Bradley ControlLogix
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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