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Rectangular metal desktop power supply with built-in fan, silver finish

NShi

NShi RSP-1000-27 1000W 27V 37A Power Supply

SKU CH-N5HR-4NW5X

A 1000 W desktop switching supply delivering 27 V at 37 A with up to 90 % efficiency, PFC, remote control, adjustable output and full protection from -20 to +60 °C

  • Chassis TypeDesktop
  • Delivers 1000 W at 27 V and 37 A for demanding industrial loads
  • Up to 90 % conversion efficiency reduces heat and running costs
  • Operates reliably from -20 °C to +60 °C under full load
  • Built-in protections guard against short circuit, overload, over-voltage and over-temperature
  • Metal chassis with DC fan cooling ensures stable long-term performance

Industrial-grade 1000W switching supply

The NShi RSP-1000-27 delivers a single 27V output rated at 37A for industrial automation, DIY engineering projects and test instrumentation. It provides active PFC, remote on/off switching, remote sensing and an auxiliary output alongside a DC OK signal. Output voltage and constant-current limits are both adjustable to suit custom load requirements. Builders needing multiple rails or standard ATX connectors should look elsewhere.

90% efficiency with wide-temperature operation

Conversion efficiency reaches 90 percent, allowing continuous full-load operation from -20 to +60 Celsius. A built-in DC fan handles cooling inside the metal chassis, which doubles as a heatsink for quiet thermal management. Protection circuits guard against short circuit, overload, over-voltage and over-temperature events. The unit is not fanless, so completely silent environments will require a different solution.

Adjustable output and monitoring signals included

Remote sensing compensates for voltage drop across long cables, while the DC OK output simplifies system-level health monitoring. Auxiliary power is available for low-current auxiliary circuits without a separate supply. Voltage and current limits are set via onboard controls rather than software. No mounting brackets, cables or configuration utilities are bundled in the package.

Highlights

  • Delivers 1000 W at 27 V and 37 A for demanding industrial loads
  • Up to 90 % conversion efficiency reduces heat and running costs
  • Operates reliably from -20 °C to +60 °C under full load
  • Built-in protections guard against short circuit, overload, over-voltage and over-temperature
  • Metal chassis with DC fan cooling ensures stable long-term performance

Specifications

Chassis TypeDesktop

Questions about this item

How do I connect the remote sensing and auxiliary power terminals on this 27 V supply?

Wire the remote sensing leads directly to the load terminals to compensate for cable drop, and use the auxiliary power output for low-current control circuits; both are screw-terminal connections on the front panel.

What maintenance will the built-in DC fan need over time?

The internal DC fan provides cooling up to 60 °C ambient; expect to clean dust from the intake vents periodically and replace the fan if bearing noise appears after extended 1000 W operation.

At what point does over-temperature protection engage during sustained 37 A output?

The unit monitors internal temperature and will shut down if heat exceeds the design limit while delivering 37 A continuously, especially above 60 °C ambient; derate load or improve airflow to avoid trips.

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