Tripp Lite 550VA / 300W Line-Interactive UPS Battery Backup with AVR - 8 Outlets - AVR550U

Ensure uninterrupted power and protect your sensitive electronics against spikes, surges, brownouts, and blackouts with the Tripp Lite AVR550U Line-Interactive Uninterruptible Power Supply (UPS). Delivering 550VA / 300 Watts of clean power, this compact, ultra-reliable battery backup is an essential safeguard for home offices, desktop workstations, point-of-sale (POS) systems, network routers, and media centers.

Equipped with built-in Automatic Voltage Regulation (AVR), the AVR550U corrects brownouts as low as 89V and overvoltages up to 145V back to safe nominal 120V power—all without draining battery reserves. With eight total NEMA 5-15R outlets (four battery backup + surge and four surge-only), an HID-compliant USB port for automated safe file saving and shutdown, and an ultra-compact footprint with wall-mount keyholes, the AVR550U keeps critical devices running safely and quietly.

Product Features:

Line-Interactive Power Protection: Delivers 550VA / 300W reliable battery backup power to keep essential systems running through temporary outages and prevent data loss.
Automatic Voltage Regulation (AVR): Actively stabilizes incoming utility power by boosting undervoltages (down to 89V) and reducing overvoltages (up to 145V) without depleting internal battery life.
8 NEMA 5-15R Outlets:
4 Battery Backup & Surge Outlets provide battery power, voltage regulation, and surge suppression for mission-critical hardware (PC, monitor, modem/router, POS terminal).
4 Surge-Only Outlets safeguard non-critical peripheral devices (printers, scanners, desk lamps) without drawing on battery runtime.
316-Joule AC Surge & Noise Suppression: Guards connected equipment against destructive power spikes, surges, and disruptive electromagnetic (EMI/RFI) line interference.
HID-Compliant USB Port: Enables automatic file saving and graceful, unattended system shutdown during prolonged outages via Tripp Lite PowerAlert software or native OS power management.
Ultra-Compact, Versatile Placement: Low-profile housing fits neatly on desktops, beneath desks, or mounts directly to walls using integrated rear keyhole slots.
Energy-Efficient & Quiet Operation: Features a >95% line-mode efficiency rating to reduce heat output and energy costs, accompanied by an alarm system that operates quietly during normal battery backup conditions.

Technical Specifications:

Manufacturer: Tripp Lite / Eaton
Model: AVR550U
Output Capacity: 550 VA / 300 Watts
Input Voltage: 120V AC, 50/60 Hz (6A max)
Input Plug: NEMA 5-15P (5 ft. power cord)
Outlets: 8 × NEMA 5-15R (4 Battery + Surge, 4 Surge-Only)
Surge Energy Rating: 316 Joules
Transfer Time: 6 ms typical (10 ms max)
Communication Interface: USB (HID-enabled; cable included)
Replacement Battery Cartridge: RBC51
Form Factor: Ultra-compact desktop, tower, or wall-mount
Dimensions (H × W × D): 4.33" × 6.40" × 12.00"
Unit Weight: 13.11 lbs