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Tripp Lite INTERNET550SER 550VA 300W UPS Desktop Battery Back Up Compact 120V DB9 RJ11 PC
  • Tripp Lite INTERNET550SER 550VA 300W UPS Desktop Battery Back Up Compact 120V DB9 RJ11 PC
  • Tripp Lite INTERNET550SER 550VA 300W UPS Desktop Battery Back Up Compact 120V DB9 RJ11 PC
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Tripp Lite INTERNET550SER 550VA 300W UPS Desktop Battery Back Up Compact 120V DB9 RJ11 PC

Manufacturer: Tripp Lite



List Price:$111.12
Our Price:$78.87

free ship
Availability: Usually ships in 3-10 business days
This item is currently out of stock and will ship the minute we receive it – typically 3-10 business days. Need it sooner? Expedited delivery options may be available. Email [email protected] or call customer service at 800-522-2025 and we'll make it happen.


    California Residents:
    Cancer and Reproductive Harm -


    Ultra-compact standby UPS with built-in DB9 serial monitoring port protects PCs, network workstations and other systems reliant upon a simple serial communications interface for UPS monitoring and unattended system shutdown. Maintains AC output during blackouts and brownouts starting at 99V. Includes DB9 monitoring port with cabling, TEL/DSL line surge suppression, surge-only outlets and LED indicators. PowerAlert software available free via download.

    • Features

      • INTERNET550SER standby UPS offers protection from blackouts, brownouts and surges on both AC and dialup modem lines
      • Provides seamless battery derived AC output during blackouts and severe brownouts so that connected equipment can be shut down without data loss
      • Built-in serial port interface provides simple communications for automatic system shutdown if power fails while the system runs unattended
      • PowerAlert software available via free download from, serial cable included
      • Supports Tripp Lite's Watchdog system service to restore operation to locked equipment through soft reboot of application/OS or hard power off/on reboot of connected equipment; ideal for unattended kiosk applications
    • Specifications

      • Output Volt Amp Capacity (VA) 550
      • Output Watt Capacity (Watts) 300
      • Nominal Output Voltage(s) Supported 115V; 120V
      • Frequency Compatibility 60 Hz
      • Output Voltage Regulation (Battery Mode) 115V (+/- 5%)
      • Output Receptacles (8) 5-15R
      • UPS Output Receptacles (Surge Suppression Only) 4 UPS outlets, 4 surge-only outlets
      • Hot-Swap PDU options PDUB15 (2U / 8 5-15R outlets)
      • Output AC Waveform (AC Mode) Sine wave
      • Output AC Waveform (Battery Mode) PWM sine wave
      • Rated input current (Maximum Load) 10A
      • Nominal Input Voltage(s) Supported 120V AC
      • UPS Input Connection Type 5-15P
      • Input Circuit Breakers 10A
      • UPS Input Cord Length (ft.) 6
      • UPS Input Cord Length (m) 1.8
      • Recommended Electrical Service 15A 120V
      • Input Phase Single-Phase
      • Half Load Runtime (min.) 11.5 min. (150w)
      • DC System Voltage (VDC) 12
      • Battery Recharge Rate (Included Batteries) NULL
      • Switches Combination switch controls on/off power status and self-test operation
      • Audible Alarm Audible alarm indicates power-failure and overload status
      • LED Indicators 2 LEDs indicate power status and overload/check battery status
      • UPS AC Suppression Joule Rating 420
      • UPS AC Suppression Response Time Instantaneous
      • UPS Dataline Suppression 1 line TEL/DSL (1 in / 1 out)
      • EMI / RFI AC Noise Suppression Yes
      • Installation Form Factors Supported with Included Accessories Tower; Ultra-compact desktop
      • Primary Form Factor Desktop
      • UPS Power Module Dimensions (hwd, in.) 3.1 x 10.9 x 5.7
      • UPS Power Module Dimensions (hwd, cm) 7.9 x 27.7 x 14.5
      • UPS Power Module Weight (lbs.) 6.5
      • UPS Power Module Weight (kg) 3
      • UPS Shipping Dimensions (hwd / in.) 4.1 x 8 x 13
      • UPS Shipping Dimensions (hwd / cm) 10.4 x 20.3 x 33
      • Shipping Weight (lbs.) 7
      • Shipping Weight (kg) 3.2
      • UPS Housing Material ABS
      • Operating Temperature Range +32 to +104 degrees Fahrenheit / 0 to +40 degrees Celsius
      • Storage Temperature Range +5 to +122 degrees Fahrenheit / -15 to +50 degrees Celsius
      • Relative Humidity 0 to 95%, non-condensing
      • AC Mode BTU / Hr. (Full Load) 10.3
      • Battery Mode BTU / Hr. (Full Load) 194.3
      • AC Mode Efficiency Rating (100% Load) 0.99
      • Communications Interface DB9 Serial
      • PowerAlert Software Free download from
      • Communications Cable DB9 interface cable included
      • WatchDog Compatibility Supports Watchdog application, OS and hard-reboot restart options for remote applications
      • Transfer Time 2-4 milliseconds
      • Low Voltage Transfer to Battery Power (Setpoint) 99
      • High Voltage Transfer to Battery Power (Setpoint) 139
      • Cold Start (Startup in Battery Mode During a Power Failure) Cold-start operation supported
      • Green Energy-Saving Features Greater than 95% efficiency - GREEN UPS
      • UPS Certifications Tested to UL1778 (USA); Tested to CSA (Canada); Tested to NOM (Mexico); Meets FCC Part 15 Category B (EMI); ENERGY STAR Qualified
      • Product Warranty Period (U.S. & Canada) 3-year limited warranty
      • Product Warranty Period (Latin America) 3-year limited warranty
      • Product Warranty Period (International) 2-year limited warranty
      • Product Warranty Period (Mexico) 3-year limited warranty
      • Connected Equipment Insurance (U.S., Canada & Puerto Rico) $100,000 Ultimate Lifetime Insurance

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