{"product_id":"1756-pbr2-allen-bradley-controllogix-redundant-power-supply-module","title":"1756-PBR2 | Allen-Bradley ControlLogix Redundant Power Supply Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-PBR2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoperates as a high-capacity redundant power supply module designed specifically for the ControlLogix platform. It provides regulated DC voltages to the chassis backplane, ensuring continuous operation of processors and I\/O modules even during power hardware transitions. This module integrates into redundant power configurations to prevent system downtime caused by single-point power failures. We offer this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, providing the voltage stability required for high-availability industrial architectures.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1756-PBR2 delivers multiple voltage rails to support the diverse power requirements of ControlLogix hardware.\u003c\/p\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\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\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRedundant Power Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput (5V DC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e13 Amps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput (3.3V DC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Amps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput (1.2V DC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 Amps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput (24V DC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.8 Amps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Watts (Maximum)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\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\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.75 kg\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\u003eRedundant System Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module connects to a 1756-PSCA2 chassis adapter. When paired with a second 1756-PBR2, the system maintains full backplane power if one supply fails, allowing for hot-swappable replacement without interrupting the process.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Current Sourcing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBy providing 13 Amps at the 5V DC rail, this supply supports high-density I\/O configurations and multiple communication modules within a single 1756 chassis. It eliminates the \"power budget\" bottlenecks common in complex automation racks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnhanced Heat Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module consumes only 4 Watts of internal power at maximum load. This low power dissipation reduces the thermal footprint within the enclosure, extending the lifespan of adjacent CPU and motion modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Voltage Regulation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1756-PBR2 filters input fluctuations to deliver clean, ripple-free 1.2V and 3.3V power to sensitive logic modules. This prevents data corruption and hardware latch-up issues caused by noisy industrial power grids.\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\u003eDo I need a special adapter to use the 1756-PBR2 in a redundant setup?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes. You must use the 1756-PSCA2 Redundant Power Chassis Adapter. The 1756-PBR2 mounts externally to the chassis and connects through this adapter to provide power redundancy to the backplane.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the 1756-PBR2 as a standalone (non-redundant) power supply?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhile primarily designed for redundancy, the 1756-PBR2 functions as a high-output 24V DC-powered supply. However, for standard non-redundant applications, engineers typically select the 1756-PB72 or 1756-PB75.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the module signal a power failure?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module includes diagnostic LEDs and a status signal that interfaces with the ControlLogix controller. The system triggers an alarm immediately if the input voltage drops below the operating threshold or if an internal fault occurs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support AC input voltage?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. The 1756-PBR2 requires a 24V DC nominal input. If your facility only provides AC power, you should select the 1756-PA72 or 1756-PAR2 (for redundant AC requirements).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53363674415288,"sku":"1756-OW16","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1756-PB75_49379a8f-aa75-493d-a57f-fc75da670e2a.jpg?v=1776405116","url":"https:\/\/www.globalpetroparts.com\/products\/1756-pbr2-allen-bradley-controllogix-redundant-power-supply-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}