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Rectangular Emerson R48-5800A 48V 100A server power supply module, silver metal casing with front handle and ventilation grille

Supersuperuncle

Supersuperuncle Emerson R48-5800A 48V 100A server power supply

SKU CH-4SB4-Y1Z86

Delivers 48 V at 100 A for Emerson R48-5800A server rectifier systems

  • Delivers 48V DC at 100A for stable server operation
  • 5800W output capacity supports high-density rack deployments
  • Hot-swap rectifier module enables maintenance without downtime
  • Emerson R48-5800A form factor fits standard telecom power shelves

Emerson R48-5800A Rectifier Module

This Emerson R48-5800A rectifier module delivers a 48V DC output rated at 100A for server and telecom power systems. It functions as a hot-swappable power building block inside compatible shelf chassis. The unit accepts AC mains input and converts it to regulated 48V DC for distribution. It is intended for infrastructure engineers expanding or maintaining high-availability power plants.

Shelf Integration and Redundancy

The module slides into a matching Emerson power shelf that provides the AC input bus, DC output bus and management signalling. Hot-swap capability lets technicians replace a unit without shutting down connected loads. N+1 redundancy is achieved by populating the shelf with additional modules beyond the minimum required. Buyers without a compatible shelf or monitoring controller cannot use this module as a standalone supply.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $587.99
Pricier than about 90% of the 3,798 comparable items (median $131.99).

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Specifications

No published specifications for this item yet.

Questions about this item

At what output current does the 48 V Emerson R48-5800A module hit its 5800 W limit?

The module reaches its 5800 W ceiling at 100 A on the 48 V rail, so sustained loads above that current will trigger the internal protection.

How much heat must the rack dissipate when the Emerson R48-5800A runs continuously at 100 A?

At full 100 A output the unit delivers 5800 W, and the difference between AC input and 48 V DC output appears as heat that the rack airflow must remove.

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