{"product_id":"allen-bradley-1756-pb75-controllogix-standard-power-supply-module","title":"Allen-Bradley 1756-PB75 ControlLogix Standard Power Supply Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1756-PB75 is a high-performance DC-to-DC power supply module engineered to provide the primary backplane power for any ControlLogix® 1756 chassis. Designed for systems operating on a nominal 24V DC input, this unit converts raw industrial power into the precisely regulated voltages required by processors, communication adapters, and I\/O modules. With a robust 75-watt capacity, it is the standard choice for remote I\/O racks and local controller chassis in environments where AC power is unavailable or DC battery backup is prioritized.\u003c\/p\u003e\n\u003cp\u003eThe 1756-PB75 is built for mission-critical reliability. It features a high hold-up time of 35 to 40 milliseconds, which allows the system to bridge momentary voltage drops without triggering a processor fault or system reset. This \"ride-through\" capability is essential for maintain system uptime in facilities with heavy motor starting or unstable DC grids. The module mounts securely to the leftmost side of the chassis, physically interlocking with the backplane to ensure a vibration-resistant connection.\u003c\/p\u003e\n\u003ch3\u003eTechnical Architecture and Safety\u003c\/h3\u003e\n\u003cp\u003eSafety and signal integrity are central to the 1756-PB75 design.\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-1490 citation-end-1490\"\u003eIt utilizes reinforced insulation to provide a high level of isolation between the input power source and the sensitive logic circuits on the backplane.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eThis protects the PLC hardware from field-side electrical noise and surges.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Versatility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhile optimized for 24V DC, the module maintains full regulation across a broad input window of 18V to 32V DC, accommodating battery discharge curves and charging fluctuations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual Voltage Rail Output:\u003c\/strong\u003e\u003cspan class=\"citation-1489 citation-end-1489\"\u003e\u003cspan\u003e \u003c\/span\u003eEfficiently distributes 13A at 5.1V DC for logic processing and 2.8A at 24V DC for module-specific requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIntegrated non-user-replaceable fusing and internal thermal shutdown mechanisms prevent damage during short circuits or overheating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStatus Monitoring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA front-panel green LED provides immediate visual confirmation that the supply is within the operational output range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-1488\"\u003e\u003c\/span\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan class=\"citation-1488 citation-end-1488\"\u003e\u003cspan\u003e \u003c\/span\u003eAllen-Bradley (Rockwell Automation)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1756-PB75\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-1487\"\u003e\u003c\/span\u003e\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e\u003cspan class=\"citation-1487 citation-end-1487\"\u003e\u003cspan\u003e \u003c\/span\u003e18–32V DC (24V DC Nominal)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Output:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e75 Watts @ 60°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-1486\"\u003e\u003c\/span\u003e\u003cstrong\u003eBackplane Current (Max):\u003c\/strong\u003e\u003cspan class=\"citation-1486 citation-end-1486\"\u003e\u003cspan\u003e \u003c\/span\u003e13A @ 5.1V DC and 2.8A @ 24V DC\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Current (Max):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4.3A @ 18V DC; 3.2A @ 24V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInrush Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e30A (Maximum)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e\u003cspan class=\"citation-1485 citation-end-1485\"\u003e\u003cspan\u003e \u003c\/span\u003e250V (Continuous), tested at 3500V DC for 60 seconds\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Gauge:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2.5 mm² (14 AWG) Solid or Stranded Copper\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0°C to 60°C (32°F to 140°F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e14.5 x 3.5 x 13.0 cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.9 kg (2.1 lbs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation and Environmental Resistance\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eChassis Compatibility:\u003c\/strong\u003e\u003cspan class=\"citation-1484 citation-end-1484\"\u003e\u003cspan\u003e \u003c\/span\u003eSpecifically designed for all standard 1756 ControlLogix chassis, including A4, A7, A10, A13, and A17 models.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe housing is optimized for convection cooling, allowing it to maintain a 75W output even at the maximum operating temperature of 60°C without the need for external fans.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Durability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRated for industrial-grade shock and vibration, ensuring it remains operational in high-motion environments or when mounted on machinery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCompliance:\u003c\/strong\u003e\u003cspan class=\"citation-1483 citation-end-1483\"\u003e\u003cspan\u003e \u003c\/span\u003eMeets global standards including UL, CSA, CE, and C-TICK for use in diverse industrial sectors.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\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":45519100805293,"sku":"1756-PB75","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen-bradley-1756-pb75-controllogix-standard-power-supply-llbwlbx1qjz.jpg?v=1766987145","url":"https:\/\/www.maxwellplc.com\/products\/allen-bradley-1756-pb75-controllogix-standard-power-supply-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}