Allen-Bradley 1756-PA72 AC to DC Power Supply Module

Allen-Bradley 1756-PA72 is a ControlLogix AC-to-DC power supply module that mounts to the left side of a standard 1756 ControlLogix chassis (such as a 1756-A13) to power the backplane and attached modules. It accepts universal input from 85 to 265 VAC at 47–63 Hz, draws up to 100 VA, and provides up to 75 W of DC output across three rails: 5.1 V DC up to 10 A, 3.3 V DC up to 4 A, and 24 V DC up to 2.8 A, with the total output rated for operation from 0 to 60 °C. The unit offers 250 V isolation between input and backplane and weighs approximately 0.95 kg (2.1 lb). Designed to sustain typical industrial environments, it ensures stable backplane power for ControlLogix processors and I/O modules.