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Compact black rectangular power adapter with fixed mains prongs and a round output jack

Phihong USA Inc.

Phihong USA Inc. PSAA20R-480L6C power adapter 48V 0.42A 20W

SKU CH-1TVY-0TDMN MPN PSAA20R-480L6C

AC adapter delivering 48 V at 0.42 A for 20 W output with 100-240 V input

  • Global voltage input suits travel and office use
  • 20 W output powers compatible 48 V devices efficiently
  • Built-in protection guards against short circuit and overheat
  • ISO 9000 and ISO 14000 certified manufacturing quality
  • Compact adapter replaces lost or damaged original supply

Genuine 20 W AC adapter for 48 V devices

This Phihong PSAA20R-480L6C unit supplies 48 V at 0.42 A for equipment that requires a 20 W external power source. It accepts a universal 100-240 V input at 50-60 Hz, making it suitable for worldwide mains voltages. The adapter is manufactured under ISO 9000 and ISO 14000 certified processes with built-in safeguards against incorrect voltage, short circuit and internal overheating. It is intended for users who need a direct replacement or spare supply matching these exact electrical ratings.

Continuous 20 W delivery with protection features

The adapter maintains its rated 48 V 0.42 A output during prolonged operation rather than only in short bursts. Internal protection circuits monitor for over-voltage, short-circuit and over-temperature conditions, shutting down or limiting output if a fault occurs. This behaviour helps protect the connected device when the supply runs continuously under full load. The design follows Phihong’s verified safety-compliance testing for sustained use.

Passive cooling with no moving parts

Because the unit dissipates up to 20 W without a fan, it operates silently in normal use. Heat is radiated through the enclosure, so surface temperature will rise during continuous loading but remains within the limits validated during safety certification. The 0.5 A input current at 100-240 V keeps mains draw low. No active cooling noise or extra power for fans is introduced into the installation.

Highlights

  • Global voltage input suits travel and office use
  • 20 W output powers compatible 48 V devices efficiently
  • Built-in protection guards against short circuit and overheat
  • ISO 9000 and ISO 14000 certified manufacturing quality
  • Compact adapter replaces lost or damaged original supply

Specifications

ModelPSAA20R-480L6C

Questions about this item

How much heat does the 20W PSAA20R-480L6C produce when running continuously?

At 20W output the adapter dissipates only a small amount of heat; its compact enclosure stays warm but not hot during all-day use.

What mains lead or inlet does the 100-240V 0.5A input require?

The unit accepts a standard IEC C7 figure-8 lead or a fixed cable rated for 100-240V 0.5A 50-60Hz.

Will the 48V 0.42A output work with legacy 48V gear that draws less current?

Yes, the regulated 48V 0.42A output safely powers older 48V devices that require 0.42A or less.

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