{"product_id":"allen-bradley-1756-pb72-b-controllogix-dc-power-supply-module","title":"Allen-Bradley 1756-PB72\/B ControlLogix DC Power Supply Module","description":"\u003ch2\u003eAllen-Bradley 1756-PB72\/B ControlLogix DC Power Supply Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-PB72\/B\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-PB72\u003c\/strong\u003e ControlLogix DC Power Supply Module, operates as a dedicated hardware component for DC-to-DC power conversion within ControlLogix chassis platforms. It converts 18-32 VDC input into regulated backplane power 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-PB72\/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 DC 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\u003e18-32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input Power\u003c\/td\u003e\n\u003ctd\u003e95 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Inrush Current\u003c\/td\u003e\n\u003ctd\u003e30 A\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 at 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\u003eContinuous Isolation Voltage\u003c\/td\u003e\n\u003ctd\u003e250 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Type\u003c\/td\u003e\n\u003ctd\u003ePower input to backplane, reinforced insulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.94 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 95 W\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 Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1756-PB72\/B provides regulated DC power conversion through the ControlLogix backplane interface. The module supports I\/O density scaling by supplying defined chassis voltage rails for controllers, communication modules, and I\/O modules. Its DC input architecture allows integration with 24 VDC industrial power sources while maintaining electrical separation between input power and backplane circuits.\u003c\/p\u003e\n\u003ch3\u003eFirmware Flash Compatibility and ControlLogix Platform Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1756-PB72\/B operates as a power supply hardware component and does not contain user application processing functions. Compatibility is determined by the ControlLogix chassis configuration, installed module power requirements, and backplane loading calculations. The module operates within ControlLogix systems using the standard backplane bus structure.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What DC input range does the 1756-PB72\/B support?\u003cbr\u003eA: The module supports an input voltage range of 18-32 VDC with a nominal input voltage of 24 VDC.\u003c\/p\u003e\n\u003cp\u003eQ: What output power capacity is provided by the 1756-PB72\/B?\u003cbr\u003eA: The module provides a maximum output power rating of 75 W at 0-60 deg C for ControlLogix chassis power requirements.\u003c\/p\u003e\n\u003cp\u003eQ: What isolation is provided by the 1756-PB72\/B?\u003cbr\u003eA: The module provides 250 V continuous isolation between the power input and the ControlLogix backplane using reinforced insulation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1756-PB72\/B in the designated ControlLogix chassis power supply position and verify the DC source voltage before energizing the system. Connect the 24 VDC supply wiring according to the specified polarity and apply appropriate protective grounding practices.\u003c\/p\u003e\n\u003cp\u003eSeparate DC power wiring from low-level analog signal wiring and communication cables to reduce electromagnetic interference. Confirm chassis mounting, backplane engagement, and enclosure conditions before operation. Verify input and output wiring connections during commissioning.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43624211284058,"sku":"1756-PB72\/B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1756-PB721.jpg?v=1779083747","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1756-pb72-b-controllogix-dc-power-supply-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}