MEAN WELL USA Inc.
Mean Well HDR-60-5
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Mean Well HDR-60-5 — 5V 6.5A (32.5W) DIN-rail PSU
An ultra-slim DIN-rail supply that turns mains into a clean 5V/6.5A rail. In a 3D-printer build this is the low-voltage / logic supply, not the main motion supply. It runs a Raspberry Pi (Klipper host), an MCU board, a small display, LED strips, fans, or other 5V accessories that you want on a dedicated rail instead of stealing current from the toolboard or a USB brick.
It does not power a 24V bed heater or 24V steppers — for that you want a 24V unit (the Voron standard). Pair this with your 24V main supply when you want the Pi and electronics on their own isolated, properly-fused source.
Why the HDR form factor
HDR is Mean Well's ultra-slim "step-shape" DIN-rail line. It clips onto standard 35mm DIN rail (TS-35/7.5 or TS-35/15), so if your printer's electronics bay or control cabinet is built around a rail, this drops in clean next to your terminal blocks and breakers — no standoffs, no open-frame chassis to mount. The 52.5mm-wide (3SU) body is narrow, fanless, and silent. Compared to an open-frame LRS brick, you pay a bit more for the cabinet-grade packaging and the tidy rail mount.
The honest wiring / safety reality
This is a bare-terminal mains unit. Live AC (L/N) lands on exposed screw terminals on one end; 5V DC comes off screw terminals on the other. That means:
- You are responsible for the mains side. It needs an appropriately-rated inline fuse and proper mains wiring (correctly-gauged, strain-relieved, ferrules on stranded conductors). Nothing here is "plug and play."
- Class II / no earth pin. The HDR series is double-insulated — there is no protective-earth (PE) terminal on the unit itself. Earth your chassis/enclosure separately per your build's grounding scheme; do not assume the PSU bonds your frame.
- Mount it where terminals can't be touched. DIN-rail supplies live inside an enclosure for a reason. Keep the AC terminals covered/inaccessible in the finished build.
- If you're not comfortable terminating mains, stop and get someone who is. The DC side is harmless; the AC side will hurt you.
Spec at a glance
- Output: 5V DC, 6.5A, 32.5W
- Input: 85-264VAC universal, 47-63Hz
- Efficiency ~85% (typ.), fanless free-air cooling
- Operating temp -30C to +70C
- Output adjustable ~5.0-5.5V (up to ~+10%) via onboard trimmer
- Short-circuit / over-current (hiccup) / over-voltage protection
- Mounts on TS-35 DIN rail; 52.5 x 90 x 54.5mm (W x H x D); ~0.19kg
- 3-year Mean Well warranty
This unit is on sale as part of a clearance — same genuine Mean Well part, lower price.
Shipping & Returns
Returns:
Thank you for purchasing from dfh.fm. I want you to be completely satisfied with your purchase. If for any reason you are not satisfied, you may return your purchase within 60 days of the original purchase date.
Defective items: Please inspect items upon receipt. If you receive a defective item, you may return it for a full refund or replacement within 90 days of the original purchase date. Please contact me to initiate a return for a defective item.
Non-defective items: If you are not satisfied with a non-defective item, you may return it for a refund within 30 days of the original purchase date. A 20% restocking fee will be deducted from the refund amount, to offset the time and inconvenience, as I am the sole employee processing the return and restocking the item. The fee also covers the costs associated with processing the return. Refunds for non-defective items will be issued through the original payment method.
Preordered items: Due to the nature of preorders, delivery dates are subject to change. Please keep in mind that, If you have preordered an item, it is not eligible for a refund until after it has arrived at the store. Once the item arrives at the store and is inspected, you may request a refund within 30 days of the original purchase date. Please note that refunds for preordered items may take up to 10 days to be issued.
To initiate a return, please open a ticket on the shop’s discord channel, with your order number and the reason for the return. We will provide you with further instructions on how to return your purchase.
Thank you for shopping with us. If you have any questions or concerns, please don't hesitate to contact me, via Discord.
Order alterations and cancellations:
Once an order has ben submitted, no alterations can be made. This includes adding or removing items or canceling orders. You are welcome to return an order, once you have taken receipt, following the returns procedure listed above.
Shipping:
US Shipping is via UPS or USPS. The way it is set up shows the least expensive options for standard, priority and express shipping. I can not take special requests for specific carriers at this time.
International shipping is mostly UPS, as I utilize Zonos/UPS integration to tally extremely accurate import and shipping costs.
I require a telephone and email with international orders and you must make yourself available to the carrier or your customs, should they require more information. If you are unreachable and the package is discarded or rerturned, I will not be responsible for rerturning your shipping cost.
If there is a problem with an international order, it is my choice to refund part or all of the order, or send a replacement.
Addresses are verified through Shopify, but the customer is still responsible for inputting their address in the correct format. Any returns or lost shipments, due to incorrectly addressed packages, are the responsibility of the customer.
