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Compact black mini-tower UPS with ten NEMA outlets and six-foot cord

MINUTEMAN

MINUTEMAN ETR550LG 550VA 330W UPS 120V 10 outlets

SKU CH-BQPX-2T7JF MPN ETR550LG

Line-interactive UPS delivers 550 VA / 330 W with four battery-backed and four surge-only NEMA 5-15R outlets plus USB management

  • Power outlets10
  • Volt-ampere rating550 VA
  • Power rating330 W
  • Voltage output104VAC to 140VAC
  • Power outletsNEMA (4) 5-15R Surge Only NEMA (4) 5-15R Battery & Surge
  • Runtime on battery3.9 min Full Load / 13.7 min Half Load

Model ETR550LG

  • Keeps four devices running during outages with 3.9 minutes at full load
  • Protects ten connected devices using 1200 joules surge rating
  • Fits tight spaces measuring 11.4 by 3.9 by 11.0 inches
  • Automatically corrects voltage from 90 to 140 volts input
  • User-replaceable BM0063 battery extends service life

Compact line-interactive UPS for home office

The Minuteman ETR550LG is a 550VA 330W line-interactive UPS designed for desktop computers, networking gear and peripherals in a 120V environment. It provides battery-backed power to four NEMA 5-15R outlets while four additional outlets deliver surge-only protection. A six-foot NEMA 5-15P cord connects to the wall.

Output voltage window and runtime limits

The unit regulates output between 104VAC and 140VAC while accepting input from 90VAC to 140VAC at 60Hz. At full 330W load the battery lasts 3.9 minutes; at half load it extends to 13.7 minutes. This runtime suits safe shutdown rather than extended operation. The 1200 joule surge rating and built-in circuit breaker protect connected equipment from transients.

Mini-tower form with replaceable battery

The mini-tower chassis measures 11.4 by 3.9 by 11.0 inches and operates from 32°F to 104°F in non-condensing humidity up to 95 percent. Battery alarms and a silencer give audible status without software. The BM0063 battery is user-replaceable, extending service life. Approvals include cTUVus to UL1778, CSA 22.2, FCC Part 15, CE and Energy Star 2.0.

How it compares

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

Price $148.99
Cheaper than about 85% of the 1,153 comparable items (median $948.99).

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Specifications

Product
Brand nameMinuteman Power Technologies
Model nameETR550LG
Power
Power outlets10
Volt-ampere rating550 VA
Power rating330 W
Voltage output104VAC to 140VAC
Runtime on battery3.9 min Full Load / 13.7 min Half Load
Replacement batteryBM0063
Voltage version120 V
AC input voltage90VAC to 140VAC
Input line frequency60 Hz
Power inputNEMA 5-15P
AlertsBattery Function Alarms
Alarm Silencer
Surge protection rating1200 Joules
Built-in protectionCircuit Breaker
Size & build
Product dimensions11.4 in × 3.9 in × 11.0 in
Product weight13.7 lb (6.21 kg)
Shipping weight7.21 kg
Package size381 × 381 × 188 mm
Environment & compliance
Regulatory approvalscTUVus (Conforms to UL1778 5th Edition & CSA 22.2 no. 107.3:2014/R:2017-10) 3rd Edition, FCC 47 CFR Part 15, Subpart B: 2020, CE certified, Energy Star2.0
Temperature range32 °F to 104 °F (0 °C to 40 °C)
Humidity range0% to 95% (Non-condensing)

Other versions of this model

4 more in the same range

Questions about this item

Should I pick a UPS with more VA or more outlets for my setup?

This model provides 550 VA and 330 W across ten outlets — four with battery backup and four surge-only — so you choose based on how many devices need runtime versus only surge protection.

What does the 330 W rating mean when my PC and monitor are plugged in?

It is the maximum real power the unit can deliver on battery; if your combined load stays at or below 330 W the UPS will keep them running for about 3.9 minutes at full load or 13.7 minutes at half load.

How does the NEMA 5-15 input and output limit what I can connect?

The 5-15P plug and 5-15R receptacles restrict you to standard 120 V North American cords rated for 15 A, capping total connected equipment at the UPS’s 550 VA / 330 W rating.

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