{"product_id":"allen-bradley-1756-pa72-controllogix-ac-power-supply-module","title":"Allen-Bradley 1756-PA72 ControlLogix AC Power Supply Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-PA72\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the primary energy source for Allen-Bradley ControlLogix 1756 chassis systems. This robust AC power supply converts universal line voltage (120\/240V AC) into the specific DC backplane voltages (3.3V, 5.1V, and 24V DC) required to operate processors, I\/O modules, and communication adapters. It mounts directly to the left side of the chassis, providing a centralized power solution for high-density automation racks. We supply this unit in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econdition, ensuring your mission-critical control architecture receives stable, factory-certified power from the first day of installation.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley (Rockwell Automation)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel \/ Part Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-PA72\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Voltage (Nominal)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120V \/ 240V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Voltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e85–265V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Frequency\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e47–63 Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Output\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e75 Watts @ 60°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4A @ 3.3V DC; 10A @ 5.1V DC; 2.8A @ 24V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Inrush Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30 Amperes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 Volts Continuous\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0°C to 60°C (32°F to 140°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChassis Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-A4, A7, A10, A13, A17 (Series A, B, and C)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe 1756-PA72 manages complex power requirements in demanding industrial environments through its advanced electrical architecture:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal Voltage Versatility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module accepts a wide input range from 85V to 265V AC. This allows global deployment across different power grids without requiring external step-down transformers or manual voltage switching.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Ride-Through Performance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe supply features a sophisticated \"Hold Up\" time of 5 to 6 cycles depending on input voltage. This prevents system resets during brief power dips or voltage sags, maintaining continuous process control during minor utility disturbances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Current Backplane Distribution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDelivering 10A at 5.1V DC, the 1756-PA72 provides ample current for large racks populated with power-hungry communication modules and high-density I\/O. This high capacity reduces the need for redundant power configurations in standard applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in Transient Suppression:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eInternal circuitry isolates the chassis backplane from line noise and surges with a 250V continuous isolation rating. This barrier protects expensive processors and sensitive analog modules from electrical interference common in heavy industrial facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeamless Chassis Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe unit snaps securely into the dedicated power supply slot on the far left of the 1756 chassis. It utilizes a direct-connect terminal block for AC wiring, simplifying installation and maintenance in cramped control cabinets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the 1756-PA72 with older ControlLogix chassis?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes. The 1756-PA72 maintains full compatibility with Series A, B, and C chassis, including the 1756-A4, A7, A10, A13, and A17 models. It provides a direct upgrade or replacement path for legacy 1756 power supplies.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this unit require a battery for operation?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. The 1756-PA72 manages power conversion purely through its internal semiconductor architecture. It does not require a battery. The processors and memory modules within the chassis handle their own data retention.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I verify the \"Brand New\" condition?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWe guarantee every 1756-PA72 arrives in its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eoriginal Allen-Bradley factory box with intact security seals\u003c\/strong\u003e. Every unit carries a unique GTIN (10612598172594) for full manufacturer traceability, confirming the unit has zero field runtime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if my current requirement exceeds 75W?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1756-PA72 provides a maximum of 75W. If your total chassis configuration (calculated via Rockwell’s Integrated Architecture Builder) exceeds this limit, you must utilize a larger power supply or split the modules into two separate chassis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53200611442872,"sku":"1756-PA72","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1756-PB75_d6ad0b0e-bc6a-4113-927b-65b154bca4f2.jpg?v=1774948375","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1756-pa72-controllogix-ac-power-supply-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}