{"product_id":"mean-well-hdr-150-48","title":"Mean Well HDR-150-48","description":"\u003cp\u003eMean Well \u003cstrong\u003eHDR-150-48\u003c\/strong\u003e — an ultra-slim, fanless DIN-rail supply putting out \u003cstrong\u003e48V at up to 153.6W\u003c\/strong\u003e. It's the clean-cabinet way to feed a 48V 3D-printer build: motion power for high-voltage stepper drivers (good torque headroom for fast Voron\/RatRig CoreXY toolheads) and, on 48V machines, the bed\/electronics rail.\u003c\/p\u003e\n\n\u003ch3\u003eWhat it powers\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e48V motion power\u003c\/strong\u003e for stepper drivers on boards that accept a separate higher-voltage VM input (many Klipper\/RatRig\/CoreXY setups run drivers at 48V for snappier acceleration while logic stays at the board's regulated 5V\/3.3V).\u003c\/li\u003e\n  \u003cli\u003eOn a 48V-native build, the \u003cstrong\u003ebed heater and main electronics rail\u003c\/strong\u003e — though note the 24V Voron standard runs bed + electronics off 24V; if you're following the stock Voron spec, you want a 24V unit, not this. This is for builds that have deliberately gone 48V.\u003c\/li\u003e\n  \u003cli\u003ePair a small \u003cstrong\u003e5V supply\u003c\/strong\u003e separately for the Raspberry Pi \/ host MCU and accessories — this unit is 48V only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHonest spec\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e48V DC\u003c\/strong\u003e, \u003cstrong\u003e3.2A \/ 153.6W\u003c\/strong\u003e on ~230VAC mains; \u003cstrong\u003e2.72A \/ 130.6W\u003c\/strong\u003e on 115VAC. The rated current depends on your mains voltage — on US 120V you do not get the full 3.2A, you get ~2.72A. Size accordingly.\u003c\/li\u003e\n  \u003cli\u003eUniversal \u003cstrong\u003e85-264VAC\u003c\/strong\u003e input, ~\u003cstrong\u003e90.5% efficient\u003c\/strong\u003e, \u003cstrong\u003efanless\u003c\/strong\u003e (silent, nothing to clog with print dust).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTS-35 DIN-rail\u003c\/strong\u003e mount, step-shape 6SU body (105 x 90 x 54.5 mm). It clips onto a rail in your electronics bay for a tidy, serviceable install instead of an enclosed brick screwed to a panel.\u003c\/li\u003e\n  \u003cli\u003eOver-load, over-voltage protection. Output trim pot on board (roughly 43.2-55.2V).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo active PFC\u003c\/strong\u003e and \u003cstrong\u003eno conformal coating.\u003c\/strong\u003e If you specifically want PFC for efficiency\/utility-friendliness, look at the UHP series instead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWiring \u0026amp; safety — read this\u003c\/h3\u003e\n\u003cp\u003eThis is a \u003cstrong\u003ebare-terminal mains-voltage\u003c\/strong\u003e supply. AC line, neutral, and earth land on exposed screw terminals — there is no enclosed plug or strain-relieved cord. You are responsible for the mains side:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse and switch the AC input\u003c\/strong\u003e upstream (inline fuse holder or fused IEC inlet sized for this load).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBond earth (PE)\u003c\/strong\u003e to the ground terminal — non-negotiable on a metal-framed printer.\u003c\/li\u003e\n  \u003cli\u003eUse a \u003cstrong\u003efinger-safe terminal cover\u003c\/strong\u003e or keep the supply inside a closed electronics bay. DIN-rail end covers\/terminal guards are cheap; use them.\u003c\/li\u003e\n  \u003cli\u003eFerrules on stranded conductors, correct wire gauge for the current, torque the terminals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you're not comfortable wiring mains to screw terminals, this is not the right part for you. Done correctly it's a clean, reliable, industrial install.\u003c\/p\u003e\n\n\u003ch3\u003eWhy this form factor\u003c\/h3\u003e\n\u003cp\u003eHDR is Mean Well's slim DIN-rail line: it clips onto a rail next to your control board and breakers for a cabinet-style layout, where an enclosed LRS brick is meant to be bolted flat to a panel. For 48V specifically, the 3D-printer niche more commonly reaches for the enclosed \u003cstrong\u003eLRS-200-48\u003c\/strong\u003e (cheaper) or the PFC-equipped slim \u003cstrong\u003eUHP-200-48\u003c\/strong\u003e (premium kit-grade). The HDR-150-48 sits between them: premium build and the cleanest rail-mount install, but it is not the part the 48V Voron\/Klipper crowd has standardized on. Buy it because you want a fanless DIN-rail 48V supply in a control cabinet, not because a build guide told you to.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eOn sale \/ clearance pricing — same Mean Well part, marked down.\u003c\/em\u003e\u003c\/p\u003e","brand":"MEAN WELL USA Inc.","offers":[{"title":"Default Title","offer_id":44779841093854,"sku":"5114251115","price":35.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/9767\/0313\/files\/hdr-150-48.jpg?v=1707758785","url":"https:\/\/formosissima.myshopify.com\/products\/mean-well-hdr-150-48","provider":"dfh.fm","version":"1.0","type":"link"}