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Rectangular metal power supply unit with screw terminals and voltage selector switch

NShi

NShi 48V 20A 1000W Switching Power Supply

SKU CH-KAE2-VCFA8

Converts AC 110V/220V to DC 48V 20A 1000W with short-circuit, overload and over-voltage protection

  • Chassis styleDesktop
  • Delivers 1000 W DC power for demanding projects
  • 48 V 20 A regulated output ensures stable operation
  • Auto-select 110 V or 220 V AC input for worldwide use
  • Built-in short-circuit, overload and over-voltage protection safeguards equipment
  • Compact 9.5 x 4.8 x 2.6 inch chassis fits tight spaces

48 V 20 A Desktop Power Supply

This NShi switching unit converts AC 110V or 220V input into a regulated DC 48 V output rated at 20 A and 1000 W. It fits a standard desktop chassis and uses screw terminals for secure wiring. Built-in protection covers short circuit, overload, over-voltage and high temperature events. The supply suits projects that need a steady high-current 48 V rail.

Suits fixed 48 V loads.

Installers running CCTV arrays, radio gear, LED strips, 3D printers or CNC controllers will appreciate the wide auto-range input and constant-voltage design. The desktop form factor sits on a bench or shelf without rack mounting. Builders who require adjustable output, battery charging profiles or redundant hot-swap modules should look at a different topology. The single fixed rail limits flexibility for multi-voltage systems.

1000 W at 48 V decides fit

The 1000 W rating at 48 V is the key figure that determines whether this unit can power your intended load. Verify that your equipment draws no more than 20 A continuous at 48 V before connecting. The 9.5 x 4.8 x 2.6 inch footprint and 3 lb weight allow easy placement in most enclosures. Choose this supply when the 48 V 20 A specification matches the project requirement exactly.

How it compares

Measured against everything we stock in Rackmount Server Cases, at today’s prices. Recalculated every night.

Price $147.99
Cheaper than about 77% of the 1,006 comparable items (median $222.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Size & build
Chassis styleDesktop

Questions about this item

What are the exact dimensions of this 1000 W power supply so I can check it fits my chassis?

The unit measures 9.5 inches long, 4.8 inches wide and 2.6 inches high, weighing 3 lbs.

How do I wire the AC input and DC output, and what is the common mistake?

Use the screw terminals; the critical step is setting the 110 V / 220 V input selector to match your mains before applying power.

Does the internal fan or any other part need scheduled replacement on this 48 V 20 A supply?

No user-serviceable parts are listed; the supply relies on built-in short-circuit, over-voltage, over-current and over-temperature protection instead of scheduled maintenance.

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