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Silver rectangular metal enclosure with screw terminals and voltage adjustment knob

myVolts

myVolts S-350W-48 power supply

SKU CH-187N-2E7K9 MPN S-350W-48

A switchable 100-240V AC input delivers an adjustable 48V DC output at up to 7.3A and 350W with over-voltage, overload, over-temperature and short-circuit protection

  • Product typeAT
  • Adjustable ±10 % output voltage lets you fine-tune 48 V DC
  • 350 W continuous power from a compact 8.46 × 4.41 × 1.97 in chassis
  • Switchable AC 110 / 220 V input covers 100–240 V mains worldwide
  • Over-voltage, overload, over-temperature and short-circuit protections keep connected gear safe
  • 48-hour burn-in plus CE and FCC certification confirms reliable operation

48 V adjustable DC supply

The myVolts S-350W-48 delivers a regulated 48 V output that can be trimmed by ten percent. It accepts switchable mains input from 96 V to 130 V or 200 V to 240 V at 50 Hz or 60 Hz. The unit is built for indoor equipment such as LED strips, display panels and audio amplifiers that need a stable 350 W source.

Thermals noise and protection

A built-in EMC filter and 48-hour burn-in keep conducted emissions low and output ripple controlled. Over-voltage, over-current, over-temperature and short-circuit circuits shut the rail down before components stress. The metal enclosure acts as a heatsink so the supply runs without a fan in typical indoor ambient temperatures up to 50 °C.

Build integration and wiring

The chassis measures 8.46 in by 4.41 in by 1.97 in and weighs 1.98 lb, fitting standard DIN-rail or panel mounts. Input terminals are labelled L, N and earth; output terminals are clearly marked -V/COM and +V. An external ADJ potentiometer provides the ten percent trim without opening the case. Indoor use only — the housing is not waterproof.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $58.99
Cheaper than about 86% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

How do I install this power supply and which step is most often missed?

Mount the 8.46 x 4.41 x 1.97 inch metal enclosure indoors, set the AC selector to 110 V or 220 V to match mains, connect L N and earth to the input terminals, then wire +V and -V/COM to the load; the step most often missed is verifying the selector position before applying power.

What maintenance or replacement will this unit need later?

The internal electrolytic capacitors age over time; plan to replace the supply after several years of continuous 350 W operation or if output voltage drifts beyond the ±10 % adjustment range.

What limit appears first during sustained full-load use?

The 50 °C to 122 °F operating temperature ceiling is reached first; the enclosure relies on natural convection, so prolonged 7.3 A output at 48 V requires adequate airflow to stay within that range.

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