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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 styleDesktop
  • 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.

How it compares

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

Price $426.99
Pricier than about 86% of the 10,869 comparable items (median $142.99).

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Specifications

Size & build
Chassis styleDesktop

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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