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Rectangular metal power supply unit with built-in fan and terminal connections

myVolts

myVolts RSP-500-3.3 500W 3.3V Power Supply

SKU CH-CX1Q-87Y8F

Enclosed 500 W AC-DC unit delivering 3.3 V at 90 A with active PFC and 90.5% efficiency

  • TypeAT
  • High-efficiency operation up to 90.5% reduces energy waste
  • Wide 85-264Vac input range suits global power grids
  • Built-in active PFC function improves power factor
  • Forced air cooling with internal DC fan manages heat
  • Remote ON-OFF, remote sense and DC OK signal add control flexibility

Industrial 500W 3.3V Power Supply

The myVolts RSP-500-3.3 is a 500W single-output enclosed AC/DC power supply delivering 3.3V at up to 90A. It accepts a universal 85-264Vac input and includes active PFC with up to 90.5% efficiency. Forced-air cooling is provided by a built-in DC fan. The unit is designed for factory automation, test equipment, laser systems and burn-in facilities.

Suited for fixed industrial installations

This supply fits engineers who need a rugged 3.3V source with remote on-off control, remote sense and a DC OK signal for system integration. Protection circuits cover short circuit, overload, over voltage and over temperature up to 70°C. It is not intended for PC builders requiring ATX connectors or multiple voltage rails, nor for portable equipment needing fanless silent operation.

Factory-ready monitoring and control

The built-in remote on-off function lets a host system enable or disable output without cutting mains power. Remote sense compensates for voltage drop across long load cables, while the DC OK signal provides a simple status flag for supervisory circuits. These features reduce external wiring and simplify cabinet design in automation and laser applications.

Points forts

  • High-efficiency operation up to 90.5% reduces energy waste
  • Wide 85-264Vac input range suits global power grids
  • Built-in active PFC function improves power factor
  • Forced air cooling with internal DC fan manages heat
  • Remote ON-OFF, remote sense and DC OK signal add control flexibility

Caractéristiques

TypeAT

Questions sur cet article

What AC voltage range must my facility supply for this 3.3V 500W unit to operate?

The power supply accepts 85 to 264VAC input, so any standard single-phase mains within that range will work.

Will the built-in fan keep the unit cool if I mount it in a cabinet that reaches 70°C ambient?

Yes, forced-air cooling with fan speed control is rated for continuous operation up to 70°C ambient temperature.

How can I verify the supply is delivering 3.3V at up to 90A after installation?

Use the DC OK signal output and remote sense terminals to monitor voltage and confirm regulation at the load.

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