{"product_id":"abb-dssr122-power-supply-unit-40a-continuous-output-5vdc","title":"ABB DSSR122 Power Supply Unit | 40A Continuous Output 5VDC","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB DSSR122 (Part Number: 48990001-NK)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a high-capacity, regulated DC\/DC power converter specifically engineered for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAdvant Master\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econtrol platform. This module converts standard 24V DC industrial power into a stabilized 5V DC supply, delivering up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e40A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof continuous current to drive sensitive logic circuits, CPU modules, and I\/O clusters. By isolating control electronics from input fluctuations, the DSSR122 prevents logic errors and hardware fatigue in mission-critical automation environments.\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\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\u003eInput Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 V DC (Operational range: 18–30 V DC)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 V DC Regulated (±1% Stability)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e40 A Continuous \/ 50 A Peak\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEfficiency\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e≥90% at full rated load\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOvercurrent, Self-resetting Short-circuit, Overvoltage (\u0026gt;6V)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eThermal Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-25°C to +70°C (Operating)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWall or Rack mount (Optional DIN rail adapter)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDiagnostics\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eLED status indicators (Input\/Output\/Fault\/Thermal)\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\u003eHot-Swap Functionality:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOperators replace modules without powering down the entire station. This feature eliminates downtime during maintenance cycles and ensures continuous process availability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eActive Redundancy Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe DSSR122 supports parallel operation. By configuring units in an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eN+1 setup\u003c\/strong\u003e, the system maintains full power even if a single supply fails, providing a fail-safe architecture for high-stakes utility and manufacturing sectors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Thermal Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdvanced internal heat sinking allows the unit to operate effectively up to +70°C. For maximum longevity, we recommend maintaining 20mm of clearance around the cooling vents to prevent localized heat buildup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Regulation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe unit maintains a tight ±1% voltage tolerance. This precision protects sensitive 5V logic components from the \"noise\" and voltage drops common in large-scale industrial DC grids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReverse Polarity Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIntegrated circuitry prevents damage during installation if input wiring is accidentally swapped, safeguarding both the power supply and downstream controllers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this ABB DSSR122 unit brand new or refurbished?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e. While the market often carries refurbished units due to the legacy nature of some Advant systems, our stock consists of unused, factory-certified hardware to ensure maximum MTBF (Mean Time Between Failures).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the DSSR122 be used with non-ABB PLC systems?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. While optimized for ABB Advant Master, the DSSR122 functions as a standalone high-current 5V DC regulator. As long as your third-party hardware requires a 5V supply and fits within the 40A current envelope, this module provides highly stable power.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should I do if the \"Thermal Warning\" LED activates?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCheck for obstructions in the ventilation paths or an ambient temperature exceeding 70°C. The unit features self-resetting protection, but prolonged exposure to overheat conditions will trigger a shutdown to protect internal components. Ensure the cabinet fans are operational.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich fuse should I use for replacement?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse only the ABB-certified\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e20A (5672827-20)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003espare fuse. Using non-certified or incorrectly rated fuses voids compliance and risks damaging the internal regulation circuitry during a surge.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":43324113387610,"sku":"DSSR122","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/456._f943ac33-a432-4b54-beb5-579d71f793d2.jpg?v=1778115264","url":"https:\/\/www.spareoil.com\/products\/abb-dssr122-power-supply-unit-40a-continuous-output-5vdc","provider":"SpareOil Automation","version":"1.0","type":"link"}