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Compact black tower UPS with eight NEMA outlets and USB port

Eaton

Eaton 5S550 UPS 550 VA 330 W 120 V 8 NEMA 5-15R USB

SKU CH-3KPH-PB9ZM MPN 5S550

Line-interactive battery backup delivers 550 VA and 330 W through eight NEMA 5-15R outlets with USB management and surge protection

  • AC input voltage120 V AC Nominal 93 V AC to 138 V AC
  • Input line frequency50/60 Hz
  • Power inputNEMA 5-15P
  • Volt-ampere rating550 VA
  • Power rating330 W
  • Voltage output115 V AC Nominal

VA 550 VA

  • Protects eight devices with 550 VA / 330 W capacity
  • Maintains 115 V output across 93 V to 138 V input range
  • USB port enables software monitoring and safe shutdown
  • Surge protection covers power and network lines
  • Tower form factor fits compact spaces at 3.4 in wide

Compact tower UPS for desk setups

The Eaton 5S550 is a line-interactive battery backup rated at 550 VA and 330 W, designed for 120 V environments. Its narrow 3.4-inch width suits small desks or shelf mounting. Eight NEMA 5-15R outlets protect computers, monitors, routers and peripherals from outages and surges.

USB monitoring and network surge protection

A USB port connects to the included management software for automated shutdown and status alerts. Two RJ-45 pass-through ports shield Ethernet or phone lines from voltage spikes. The sealed maintenance-free battery delivers approximately one minute of runtime at full load, enough to save work and close applications.

Verify load and outlet needs

Confirm your equipment draws less than 330 W total; heavier loads will exceed the unit’s capacity. Ensure the NEMA 5-15P input plug matches your wall receptacle. The tower form factor requires upright placement with ventilation space around the 9.8-inch height and 10.2-inch depth.

How it compares

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

Price $130.99
Cheaper than about 88% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameEATON
Model name5S550
Ports & slots
Communication portsUSB
Power
AC input voltage120 V AC Nominal
93 V AC to 138 V AC
Input line frequency50/60 Hz
Power inputNEMA 5-15P
Volt-ampere rating550 VA
Power rating330 W
Voltage output115 V AC Nominal
Power outlets8
Size & build
Product dimensions9.8 in × 3.4 in × 10.2 in (H × W × D)
Product weight12.3 lb (5.58 kg)
Shipping weight6.14 kg
Package size330 × 325 × 163 mm
Environment & compliance
Regulatory approvalsUL 1778, UL497A, CE / cTUVus / NOM
Software
Control softwareYES
More details
Surge protectionYes. Line & network line

Other versions of this model

1 more in the same range

Questions about this item

How often should the sealed battery be replaced in the 5S550?

The maintenance-free sealed battery typically lasts three to five years; Eaton recommends replacement when runtime drops below your needs or after three years of continuous service.

What is the maximum load the 5S550 can sustain on battery power?

The unit supplies up to 330 W (550 VA) on battery; at full load the rated runtime is one minute, so sustained outages will shut down connected equipment quickly.

How much heat does the 5S550 produce when running all day?

Under normal line-interactive operation the UPS draws only a few watts for charging and monitoring, so heat output is minimal and the tower remains cool to the touch.

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