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Rectangular enclosed metal power supply unit with screw terminals and LED indicator

myVolts

myVolts LRS-75-48 75W 48V 1.6A Power Supply

SKU CH-21RV-5SRM1

Enclosed 75 W switching supply delivers 48 V at 1.6 A with universal 85–264 VAC input, 300 VAC surge tolerance, overload and over-voltage protection, convection cooling up to 70 °C.

  • Product typeAT
  • Reliable 48 V output for industrial equipment backed by 75 W single-output design
  • Low no-load draw under 0.3 W saves energy with miniature 1U profile
  • Safe operation up to 70 °C ambient temperature supported by free-air convection cooling
  • Certified to EN 62368-1 and EN 60335-1 meeting household appliance standards
  • Survives 300 VAC surge and 5 G vibration with short-circuit overload over-voltage protection

Industrial 48 V DC supply

This 75 W enclosed unit delivers a steady 48 V at 1.6 A for automation cabinets, test equipment, 3D printers or LED lighting. It accepts a universal 85–264 VAC input and operates reliably up to 70 °C ambient temperature. No-load consumption stays below 0.3 W, and a built-in LED shows power-on status.

1U low-profile mounting

The 30 mm high chassis fits tight DIN-rail or panel spaces without forced-air cooling, relying on free-air convection instead. Short-circuit, overload and over-voltage protection guard connected loads, while the 300 VAC surge tolerance for five seconds absorbs mains transients. Vibration resistance to 5 G suits mobile or machinery-mounted installs.

Convection-cooled thermal design

Silent operation is assured because no fan is fitted; heat dissipates through the metal enclosure during normal loads. Efficiency remains high across the output range, supporting long-life continuous duty at up to 5000 m altitude. Certified to EN 62368-1, EN 60335-1 and EN 61558-1/-2-16 for household-appliance safety.

How it compares

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

Price $40.99
Cheaper than about 92% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

At what ambient temperature does the LRS-75-48 begin to derate?

The supply is rated for continuous operation up to 70 °C; above that temperature output power must be reduced.

How much acoustic noise does the fanless design produce during 24-hour operation?

Cooling is by free air convection only, so the unit runs completely silently.

Which mains cable does the enclosed terminal block require?

A standard three-core mains lead with stripped ends is needed to connect to the screw terminals.

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