{"product_id":"allen-bradley-1756-pb75r-controllogix-redundant-power-supply","title":"Allen Bradley 1756-PB75R ControlLogix Redundant Power Supply","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Allen Bradley \u003cstrong\u003e1756-PB75R\u003c\/strong\u003e functions as a high-capacity redundant power supply designed for the ControlLogix 1756 chassis system. This module provides critical power backup to prevent system-wide shutdowns in the event of a primary power source failure. It operates on a 24V DC nominal input and delivers 75 Watts of output power, ensuring that high-density I\/O configurations and high-performance controllers remain operational under demanding industrial conditions.\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\u003eDetails\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\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-PB75R\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Input Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24V DC\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\u003e18–32V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e75 W @ 0…60 °C (32…140 °F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInrush Current (Max)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Capacity @ 5.1V\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e13 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Capacity @ 24V\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.8 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCompatible Chassis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-A4, -A7, -A10, -A13, -A17\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100% Brand New Original\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\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eZero-Downtime Redundancy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1756-PB75R allows for a redundant power architecture. By pairing two units with a 1756-CPR2 cable, the system maintains continuous operation even if one supply loses power or malfunctions. This setup eliminates costly process interruptions in 24\/7 manufacturing environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Current Delivery:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis unit provides a substantial 13A capacity at 5.1V DC. This high current output supports large-scale chassis filled with power-hungry communication modules and specialty I\/O cards without voltage drops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Efficiency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module maintains a full 75W output even at maximum operating temperatures (60 °C). This thermal stability allows for installation in densely packed control panels where heat dissipation often limits hardware performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBroad Chassis Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe design fits all Series B ControlLogix chassis, from the compact 4-slot (1756-A4) to the expansive 17-slot (1756-A17) versions, providing a standardized power solution across the entire facility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Surge Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe hardware manages inrush currents up to 30A, protecting sensitive backplane electronics from sudden power spikes during initial system startup.\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\u003eIs the 1756-PB75R sold as 100% Brand New?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. We supply this power supply as 100% Brand New original equipment. It undergoes rigorous factory testing to meet all Allen Bradley performance standards before shipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need additional hardware for redundancy?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo achieve true redundancy, you must use two 1756-PB75R supplies in conjunction with a 1756-CPR2 redundancy cable and a compatible power supply adapter for the chassis backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit replace a standard 1756-PB75?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile the 1756-PB75R shares the 75W rating, the \"R\" designation specifically enables redundancy features. You can use it as a standalone supply, but its primary value lies in its ability to pair with another unit for high-availability systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the mounting requirements for this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis unit mounts directly to the left side of the ControlLogix chassis. Ensure adequate clearance for airflow and cable routing to the redundancy partner to maintain optimal operating temperatures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52869584978229,"sku":"1756-PB75R","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1756-PB75R.png?v=1778635745","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-1756-pb75r-controllogix-redundant-power-supply","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}