{"product_id":"mean-well-dr-ups40-40-amp-dc-uninterruptable-power-supply-din-rail","title":"MEAN WELL DR-UPS40 40 Amp DC Uninterruptable Power Supply - DIN Rail","description":"\u003cp\u003eOur review of the MEAN WELL DR-UPS40 finds it is a focused, practical choice for technicians and integrators who need a compact DC UPS battery controller for 24V installations. The bottom line: this unit excels when space is limited and reliable, straightforward battery management is required. In testing the DR-UPS40, the combination of a 40A pass-through capacity, dedicated charge current and a built-in battery test made routine maintenance and system protection easy, which is the single biggest reason an installer would choose this controller for a DIN rail UPS setup.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint:\u003c\/strong\u003e The 4.9 x 2.2 x 4.9 in package saves DIN rail space, allowing installation in crowded control cabinets without major layout changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh current handling:\u003c\/strong\u003e A 40A DC output supports loads on typical 24V systems without immediate need for larger power hardware or frequent parallel upgrades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible charging:\u003c\/strong\u003e The built-in 2A charge current maintains battery health for standby use while keeping heat and energy draw modest.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery protection features:\u003c\/strong\u003e Integrated battery polarity protection and a test function reduce the risk of user wiring errors and make periodic checks straightforward.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide input ranges:\u003c\/strong\u003e DC input (24-29V) and battery input (21-29V) ranges accommodate normal variations in 24V battery systems and tolerate slightly discharged batteries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe DR-UPS40 is best suited for electricians, system integrators and field service technicians installing or upgrading small to medium 24V DC UPS rails where a dedicated DIN rail controller is desirable. Its compact size and 40A current capacity fit applications such as network closet backup, industrial controllers and telecom edge sites that rely on 24V battery banks.\u003c\/p\u003e\n\u003cp\u003eThose who need higher charge currents, multi-voltage support or integrated inverter output should look elsewhere; the DR-UPS40 is narrowly focused as a DC battery controller and does not replace full hybrid UPS systems or larger DC power distribution units.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolid 40A capacity provides dependable DC power routing for 24V systems without overspecifying the installation.\u003c\/li\u003e\n\u003cli\u003eCompact DIN rail form factor conserves cabinet space and simplifies retrofits.\u003c\/li\u003e\n\u003cli\u003eBattery test and polarity protection add practical safeguards for maintenance and installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCharge current is fixed at 2A, which may be slow for large battery banks that require faster replenishment.\u003c\/li\u003e\n\u003cli\u003eFeature set is focused on DC control only and lacks integrated AC inverter capabilities for AC-backed loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eDR-UPS40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage dimensions (L x W x H)\u003c\/td\u003e\n\u003ctd\u003e4.9 x 2.2 x 4.9 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage weight\u003c\/td\u003e\n\u003ctd\u003e1.22 pounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC input\u003c\/td\u003e\n\u003ctd\u003e24-29V 40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery input\u003c\/td\u003e\n\u003ctd\u003e21-29V 0-40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge current\u003c\/td\u003e\n\u003ctd\u003e2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2-year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe MEAN WELL DR-UPS40 is a practical, value-oriented DC UPS battery controller for 24V DIN rail installations. It is an excellent buy for professionals who need a compact 40A device with basic battery management and protection features; it provides reliable service for standard backup scenarios without unnecessary extras.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan the DR-UPS40 be used in parallel on a DC bus?\u003c\/strong\u003e\u003cbr\u003eYes, the unit supports parallel connection to a DC bus for systems that require combining outputs to serve larger loads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat range of battery voltages does it accept?\u003c\/strong\u003e\u003cbr\u003eThe controller accepts battery voltages from 21V to 29V, making it compatible with typical 24V battery banks even when partially discharged.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include safety certifications?\u003c\/strong\u003e\u003cbr\u003eThe DR-UPS40 carries CE certification and includes battery polarity protection to reduce wiring risks during installation.\u003c\/p\u003e","brand":"MEAN WELL","offers":[{"title":"Default Title","offer_id":48673121698011,"sku":"B005T6TGKK","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61SwNbXKlKL._SL1000.jpg?v=1778664786","url":"https:\/\/gearmusthave.com\/products\/mean-well-dr-ups40-40-amp-dc-uninterruptable-power-supply-din-rail","provider":"GearMustHave","version":"1.0","type":"link"}