{"product_id":"mean-well-hdr-150-24","title":"Mean Well HDR-150-24","description":"\u003ch2\u003eMean Well HDR-150-24 — 150W 24V ultra-slim DIN-rail supply\u003c\/h2\u003e\n\u003cp\u003eA genuine Mean Well HDR-150-24: an ultra-slim, fanless DIN-rail power supply that puts out a regulated 24VDC rail from any mains input. This is the same 24V that a Voron, RatRig, or 24V Ender\/Klipper build runs on — it feeds the bed heater and the control electronics (board, steppers, fans, hotend heater). The HDR is the DIN-rail form factor: instead of the usual open enclosed brick screwed to a frame rail, it clips onto standard TS-35 DIN rail for a clean control-cabinet or electronics-bay layout.\u003c\/p\u003e\n\n\u003ch3\u003eHonest power math — read this before you buy\u003c\/h3\u003e\n\u003cp\u003eThe \"150W\" rating is at 230VAC. On US 115V mains this unit \u003cstrong\u003ederates to 127.4W (24V @ 5.31A)\u003c\/strong\u003e — that is a hard spec on the Mean Well datasheet, not a fudge factor. 127W is enough to run the electronics and a small-to-medium 24V bed heater, but if you are sizing the supply primarily to drive a large 24V silicone bed heater on US mains, do the wattage math first: a 300x300 24V bed pad can pull close to or past this. For a big bed on 120V most builders step up to a 200-350W class supply (or run the bed off mains AC through an SSR). Use this where ~127W on 120V actually covers your load, or anywhere you have 230V available, where you get the full 150W.\u003c\/p\u003e\n\n\u003ch3\u003eWhy the DIN-rail form factor\u003c\/h3\u003e\n\u003cp\u003eThe HDR is \"step shape\" ultra-slim — a narrow 105 x 90 x 54.5 mm body that snaps onto TS-35\/7.5 or TS-35\/15 rail. It is the tidy option: rail-mount it next to your control board, breakers, and SSR instead of standing off an enclosed brick. Fanless convection cooling means it is silent and has no fan to clog or fail. Output is trimmable 21.6-29V if you need to nudge the rail. Versus the enclosed LRS bricks we also sell, the HDR is the premium, cabinet-grade install — you pay for the slim rail-mount body, not for more watts.\u003c\/p\u003e\n\n\u003ch3\u003eWiring and safety — bare mains terminals\u003c\/h3\u003e\n\u003cp\u003eThis is a bare-terminal industrial supply, not a plug-and-play adapter. Mains lands on screw terminals (L \/ N \/ earth-via-case is Class II, so chassis bonding rules differ from a 3-terminal Class I unit — read the datasheet). \u003cstrong\u003eYou\u003c\/strong\u003e are responsible for an inline mains fuse, a strain-relieved and properly gauged AC cord, an IEC inlet or hardwired entry, and keeping fingers off live terminals. There is no fuse, switch, or cord in the box. If you are not comfortable wiring line-voltage AC to screw terminals and fusing it correctly, have someone who is do it. A terminal cover \/ finger guard is strongly recommended on any exposed-terminal supply that lives in a printer enclosure.\u003c\/p\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e 24VDC, 6.25A, 150W at 230VAC — 5.31A, 127.4W at 115VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e 85-264VAC universal, 47-63Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency:\u003c\/strong\u003e ~90% (90.5% typ)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput adjust:\u003c\/strong\u003e 21.6-29V trimpot\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling:\u003c\/strong\u003e fanless \/ convection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtections:\u003c\/strong\u003e short-circuit, overload, overvoltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e TS-35\/7.5 or TS-35\/15 DIN rail\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e screw terminals (AC in \/ DC out)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 105 x 90 x 54.5 mm (4.13 x 3.54 x 2.15 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemp:\u003c\/strong\u003e -30 to +70C (with derating), no-load draw \u0026lt;0.3W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListings:\u003c\/strong\u003e UL\/IEC 62368-1, UL 61010; 3-year Mean Well warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eGenuine Mean Well. On sale as part of a clearance — same part, same spec, lower price.\u003c\/p\u003e","brand":"MEAN WELL USA Inc.","offers":[{"title":"Default Title","offer_id":44779847188702,"sku":"7615355297","price":32.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/9767\/0313\/files\/mean-well-hdr-150.jpg?v=1707759009","url":"https:\/\/formosissima.myshopify.com\/products\/mean-well-hdr-150-24","provider":"dfh.fm","version":"1.0","type":"link"}