{"product_id":"allen-bradley-1756-pa72-c-controllogix-ac-power-supply-module","title":"Allen-Bradley 1756-PA72\/C ControlLogix AC Power Supply Module","description":"\u003ch2\u003eAllen-Bradley 1756-PA72\/C ControlLogix AC Power Supply Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-PA72\/C\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-PA72\u003c\/strong\u003e ControlLogix AC Power Supply Module, operates as a dedicated hardware component for regulated DC backplane power conversion within ControlLogix chassis platforms. It converts 85-265 VAC input into 5.1 VDC and 3.3 VDC outputs for controller, communication, and I\/O module power distribution.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1756-PA72\/C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eControlLogix AC Power Supply Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eBulletin 1756 ControlLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e85-265 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e120\/240 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency\u003c\/td\u003e\n\u003ctd\u003e47-63 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e5.1 VDC and 3.3 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e5.1 VDC @ 13 A (50 deg C), 10 A (60 deg C); 3.3 VDC @ 4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Power\u003c\/td\u003e\n\u003ctd\u003e75 W @ 0-50 deg C; 60 W @ 0-60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e250 V continuous, reinforced insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.77 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e140 x 78 x 145 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0-60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMaximum input power 120 W \/ 130 VA @ 50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and ControlLogix Power Distribution Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1756-PA72\/C provides regulated chassis power conversion for ControlLogix backplane operation. The module supports controller, communication, and I\/O module power requirements through the ControlLogix backplane bus. Its power architecture includes voltage failure signaling for controlled system shutdown sequences and maintains output regulation under defined chassis loading conditions.\u003c\/p\u003e\n\u003ch3\u003eFirmware Flash Compatibility and Backplane Power Management\u003c\/h3\u003e\n\u003cp\u003eThe power supply module operates as a hardware-level component within the ControlLogix 1756 platform and does not execute user firmware applications. System compatibility is determined by chassis configuration, controller requirements, and power budget calculations. The module provides backplane power capacity of up to 75 W and supports chassis planning based on individual module current consumption.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What AC input range does the 1756-PA72\/C support?\u003cbr\u003eA: The module accepts 85-265 VAC input with a nominal operating range of 120\/240 VAC at 47-63 Hz frequency.\u003c\/p\u003e\n\u003cp\u003eQ: What DC outputs are provided to the ControlLogix backplane?\u003cbr\u003eA: The module provides 5.1 VDC output at up to 13 A at 50 deg C and 10 A at 60 deg C, plus 3.3 VDC output at up to 4 A.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module be installed in any ControlLogix chassis position?\u003cbr\u003eA: Installation follows ControlLogix chassis power supply placement requirements. The chassis power budget must be verified before connecting controllers, communication modules, and I\/O modules.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1756-PA72\/C in the designated ControlLogix chassis power supply location and verify the chassis power load before energizing the system. Connect AC input wiring according to the specified voltage range and apply appropriate protective grounding practices.\u003c\/p\u003e\n\u003cp\u003eSeparate AC power wiring from low-level signal cables and communication wiring to reduce electrical interference. Maintain proper shielding and grounding practices for connected ControlLogix system wiring. Confirm environmental conditions, enclosure protection, and airflow requirements before commissioning.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43624061730906,"sku":"1756-PA72\/C","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-PA72C2.jpg?v=1783578923","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-pa72-c-controllogix-ac-power-supply-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}