Minuteman - ETR550LG - UPS AVR 550VA 4-Bat/4-Surge USB
Product Overview
The Minuteman ETR550LG is a 550VA line-interactive UPS in a compact mini-tower design. It features AVR for voltage stabilization, USB-based monitoring, front LCD status display, and built-in surge protection for Ethernet and coax connections. The unit is Energy Star 2.0 certified for efficient operation.
Key Configuration
• Capacity: 550VA
• Outlet configuration: 4 battery & surge-protected outlets (NEMA 5-15R), 4 surge-only outlets
• AVR: Automatic Voltage Regulation
• Communications: USB port, RJ45 Ethernet surge protection (1Gbit), Coax surge protection
• Form factor: Compact mini tower
• Warranty: 3-year electronics, 2-year battery
Key Features
Delivers protection against power irregularities, including spikes, surges, brownouts, and outages using AVR technology. Includes LCD monitoring for load and battery status, audible/visual alarms, cold-start capability, and hot-swappable tool-less battery access. Supports load shedding, transformer-friendly outlets, and built-in self-diagnostics for system reliability.
Technical Context
Line-interactive design maintains stable output by correcting voltage fluctuations without switching to battery power, preserving runtime during outages. Independent battery bypass ensures a continuous protected output even during battery failure or replacement. USB interface integrates with SentryHD software for monitoring, automated shutdown, and system management across connected devices.
Installation Notes
Includes surge-protected and battery-backed outlets, RJ45 and coax protection, and USB connectivity. Features front-access battery replacement, cold-start support, and compliance with Energy Star, RoHS, and DOE efficiency standards.
UPS Model | ETR550LG |
General Features | |
Topology | Line-Interactive |
VA Rating | 550 |
Load Capacity (Watts) | 330 |
Installation Format | Mini Tower |
USB Charging Ports | None |
Input | |
Voltage Range | 90VAC to 140VAC |
Frequency Range | 60Hz ±6Hz |
Input Plug (6-ft. Cord) | NEMA 5-15P |
Input Protection | Circuit Breaker |
Max. Input Current | 10 Amps |
Surge Joule Rating | >1200 joules |
Output | |
Voltage Range (AC Mode) | 104VAC to 140VAC |
Voltage Range (Battery Mode) | 120VAC ±5% until low battery warning |
Wave Form (Battery Mode) | Simulated Sine Wave (Stepped) |
Output Receptacles | |
Surge Only | (4) 5-15R |
Battery & Surge | (4) 5-15R |
Batteries | |
Replacement Module | BM0063 |
Tool-less Battery Replacement | Yes |
Est. Runtime (Full/Half Load) | 3.9 / 13.7 |
Independent Battery Bypass | Yes |
DC Startup | Yes |
Hot Swappable Batteries | Yes |
Display & Communications | |
Front Panel Display | LCD |
Battery Function Alarms | Yes |
Alarm Silencer | Yes |
Shutdown Software | SentryHD (via download) |
Communication Port | USB (HID compliant) |
Communication Cable Included | Yes |
Environmental | |
Operating Temp. Range | +32°F to +104°F (0°C to +40°C) |
Operating Humidity Range | 0% to 95% (Non-condensing) |
Operating Elevation | 0 to +10,000 ft. (0 to +3,000m) |
Physical | |
Unit Dimensions (LxWxH) | 11.4” x 3.9” x 11.0” (290 * 99 * 280mm) |
Shipping Dimensions (LxWxH) | 14.9” x 7.4” x 15.2” (378 * 187 * 387mm) |
Unit Weight lbs. / (Kgs.) | 13.7 / (6.2) |
Shipping Weight lbs. / (Kgs.) | 15.4 / (7.0) |
Warranty & Certifications | |
Standard Warranty | 3 Years Electronics / 2 Years Batteries |
Connected Equipment Guarantee | $75,000 |
Safety Agency Approvals | cTUVus (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 |
Green Compliance | RoHS2, Energy Star 2.0, DoE 10 CFR Part 430 Subpart B Compliant |
