{"product_id":"allen-bradley-1756-pa72-b-controllogix-ac-power-supply-module","title":"Allen-Bradley 1756-PA72\/B ControlLogix AC Power Supply Module","description":"\u003ch2\u003eAllen-Bradley 1756-PA72\/B ControlLogix AC Power Supply Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for regulated DC backplane power conversion in ControlLogix chassis platforms, the \u003cstrong\u003eAllen-Bradley 1756-PA72\/B\u003c\/strong\u003e (\u003cstrong\u003e1756-PA72\u003c\/strong\u003e ControlLogix AC Power Supply Module) provides direct electrical power conversion from 85-265 VAC input to chassis DC supply rails for controllers, communication modules, and I\/O modules.\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\/B\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\u003eMaximum Input Power\u003c\/td\u003e\n\u003ctd\u003e120 W \/ 130 VA @ 50 deg C; 100 W \/ 110 VA @ 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInrush Current\u003c\/td\u003e\n\u003ctd\u003e20 A maximum\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\u003eHold-up Time\u003c\/td\u003e\n\u003ctd\u003e4 cycles @ 75 W; 5 cycles @ 60 W\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\u003e1.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10.2 x 15.2 x 15.2 cm\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 Backplane Power Management\u003c\/h3\u003e\n\u003cp\u003eThe 1756-PA72\/B supplies regulated DC power through the ControlLogix chassis backplane for connected processor, communication, and I\/O modules. The module supports chassis power calculation based on installed module load requirements and provides voltage failure indication for controlled system response. Its electrical design supports ControlLogix I\/O density scaling by maintaining defined backplane voltage and current availability.\u003c\/p\u003e\n\u003ch3\u003eFirmware Flash Compatibility and Industrial Control Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1756-PA72\/B functions as a power conversion device and does not contain application firmware execution functions. Compatibility is determined by the ControlLogix chassis architecture, installed modules, and system power budget. The module supports integration with ControlLogix platforms using standard backplane bus communication interfaces.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What input power source is required for the 1756-PA72\/B?\u003cbr\u003eA: The module accepts 85-265 VAC input at 47-63 Hz and provides regulated DC output for the ControlLogix chassis backplane.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum DC output capacity of the 1756-PA72\/B?\u003cbr\u003eA: The module provides up to 75 W output at 0-50 deg C and 60 W output at 0-60 deg C.\u003c\/p\u003e\n\u003cp\u003eQ: Does the 1756-PA72\/B provide controller communication functions?\u003cbr\u003eA: No. The module provides chassis power conversion only. Controller and communication functions are handled by separate ControlLogix modules.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1756-PA72\/B in the designated ControlLogix chassis power supply position and verify the total chassis power consumption before operation. Connect AC input wiring according to the specified voltage range and maintain protective grounding practices.\u003c\/p\u003e\n\u003cp\u003eRoute AC power wiring separately from low-level signal and communication cables to reduce electromagnetic interference. Ensure enclosure conditions provide suitable protection from dust, moisture, and mechanical stress. Confirm all backplane connections are fully seated before applying power.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43624080343130,"sku":"1756-PA72\/B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-PA72C1.jpg?v=1783578923","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-pa72-b-controllogix-ac-power-supply-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}