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Line Interactive UPS, 550VA, 300W, 120VAC

Price $154.75 / each

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  • Item # 1AYA4
  • Mfr. Model # AVR550U
  • UNSPSC # 39121610
  • Catalog Page # 449
  • Shipping Weight 12.33 lbs.
Country of Origin ChinaCountry of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • ItemLine Interactive UPS
  • MountingDesk Top/Tower
  • VA Rating550VA
  • Watts300W
  • Input Voltage120VAC
  • Hz60
  • Phase1
  • Input Current12A
  • Output Voltage115/120VAC
  • Backup Time (Half/Full Load)9 min./3 min.
  • Number of Outlets(8) 5-15R
  • Outlet Type(4) UPS/Surge, (4) Surge
  • Automatic Volts RegulationYes
  • Fax/Modem Line ProtectionYes
  • Transfer Time2 to 4 msec
  • Height3.5"
  • Depth6"
  • Width11.3"
  • Input Connection6 ft. Cord with NEMA 5-15P Plug
  • PortsUSB (HID Enabled)
  • Special FeaturesComplete Protection For PCs, Workstations And Other Sensitive Electronics In An Ultra-Compact, Mountable Housing, Audible Alarm, Front Panel Leds Offer Status Information Regarding Line And Battery Power Operation, Free Poweralert Software Enables Safe Unattended System Shutdown In The Case Of Extended Power Failure
  • StandardsTested to UL1778 (USA), Tested to CSA (Canada), Tested to NOM (Mexico), Meets FCC Part 15 Category B (EMI)
  • Display TypeLED
  • IncludesAVR550U UPS System, USB Cable, Instruction Manual

Compliance and Restrictions

  • Hazardous material - General


UPS Systems
Provide cost-effective backup power and power protection for critical equipment. Agency approved.
Line Interactive
Provide nominal, conditioned 120VAC for applications in which fluctuating voltage (low/high) affects equipment operation. Units also provide backup power during power blackout conditions.

Alternate Products

Rated 4.9 out of 5 by 18reviewers.
Rated 5 out of 5 by Tripplite Quality at a great price This is the fourth identical unit that I have purchased in the last 18 months for our customer installations supporting high performance PC's. Our environment suffers from severe storms and multiple blackouts during the winter season.By experience I have found that the Tripplite AVR circuits regulate fluctuations easily and that the UPS function switches on nearly instantly with enough stamina to keep our computers running and when necessary the automatic shutdown circuit interface with Microsoft Windows works perfectly. January 14, 2015
Rated 5 out of 5 by Works great; good price. I have four Tripp-Lite UPS--one for each computer and one for the stereo gear and TV. I don't care a great deal about fancy features. What I want is solid protection and that's what I get with Tripp-Lite. Highly recommended. January 14, 2015
Rated 5 out of 5 by Good product for a reasonable price. Have purchased several AVR550U for individual work stations in a small office setting and they have worked well during the many power outages. They enable the user to save working documents and then shut down until power is restored. October 15, 2014
Rated 5 out of 5 AVR550U Saved The Day Installed product on our Server after another power outage. Setup the monitoring software with alert to my email and that was it. October 1, 2014
Rated 4 out of 5 by works well This is a good product. We often have outages, but this has kept computer up long enough to save data, and then some. October 1, 2014
Rated 5 out of 5 by The AVR550U UPS System has great features and advantages. The Tripp-Lite AVR550U UPS System has great features and advantages such as: compact size, light weight, sufficient outlets to connect everything with an affordable price. I recommended this product to anyone looks this kind of features. Also is my first time to buy this brand and I enjoy it a lot.I use also an APC UPS System and I used years ago a CyberPower Surge Protection.The Tripp-Lite is a trusted and one of the best brands in the UPS Systems segment. October 3, 2013
Rated 5 out of 5 by Works as advertised. No problems. Preserved computing during power failures. Thanks. I have had the product for several years. During that time it has performed flawlessly. If it ever wears out, I will purchase another one. Thanks, MS September 16, 2013
Rated 5 out of 5 by This product meets all expectations We have used this item in many applications here and we are quite happy with the product. We cant afford to have a unit go down when power fails. September 16, 2013

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Product Q&A

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I am having problems with inconsistent power, will this unit if plugged into the battery section, provide consistent power even if the power from the wall fluctuates? I am not worried about power outages I need to keep the voltage drops from effecting my computer.
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The 1AYA4 is a line interactive unit and therefore has voltage regulation. The manufacturer states: "Built-in Automatic Voltage Regulation (AVR) boosts brownouts as low as 83 and reduces overvoltages up to 147 back to usable 120V nominal levels." PC's are one of the suggested types of equipment that may benefit from the use of this product.

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