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Black 1RU rackmount UPS unit with front display and vents

Middle Atlantic

Middle Atlantic UPS-S500R 500VA 1RU UPS

SKU CH-ARRW-YYF82 MPN UPS-S500R

Rack-mount battery backup delivers 500 VA of uninterruptible power in a single 1U chassis

  • 1 RU rack height fits tight spaces
  • 500 VA capacity backs critical loads
  • Select Series design targets professional installs
  • Battery backup protects against power loss

Compact 500 VA rack-mount UPS

The Middle Atlantic UPS-S500R is a 1 RU uninterruptible power supply rated at 500 VA. It provides battery backup and surge protection for network switches, security appliances and similar low-power rack equipment. The Select Series design fits a standard rack space while keeping cabling tidy.

Ideal for small rack loads needing basic runtime

This unit suits installers who need a lightweight, single-rack UPS for modest power draws. It is not for servers or workstations that demand higher VA capacity or extended battery runtime. Buyers needing sine-wave output or network management cards should look at larger models.

How it compares

Measured against everything we stock in Uninterruptible Power Supplies (UPS), at today’s prices. Recalculated every night.

Price $370.99
Cheaper than about 71% of the 1,153 comparable items (median $948.99).

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Specifications

Size & build
Shipping weight8.17 kg
Package size528 × 328 × 155 mm

Questions about this item

What is the maximum sustained load the 500 VA rating can support before the UPS limits output?

The 500 VA rating defines the continuous apparent power limit; sustained loads above this level will cause the UPS to limit output or transfer to battery until the load is reduced.

How much audible noise and heat does the UPS-S500R produce during all-day operation?

The 1 RU rackmount chassis uses internal cooling fans that generate low-level operational noise and modest heat output typical for a 500 VA unit under continuous load.

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