Tired of losing work every time the lights blink? The Eaton 3S550B 330W Tower UPS is a small backup unit that keeps your computer, router and other devices running when the mains drops. It gives you a few minutes of safe power so you can save files, finish a call or shut down cleanly. If you need protection from sudden outages, this UPS is the answer.
Eaton 3S550B 330W Tower UPS 6 BS 1363 Outlets USB Port
Power cuts can corrupt data, damage hardware and interrupt work. That matters most when you are on a deadline or when a home office runs critical services. The Eaton UPS solves the problem by providing clean, uninterrupted power for up to several minutes. Its six BS 1363 outlets let you plug a PC, monitor, router and a few accessories, while the USB port lets the unit communicate with your computer for automatic shutdown.
Usages of Eaton
You can place this tower on a desk or a shelf in a home office to protect a desktop PC and its monitor. It works well in a small business where a router, switch and a point-of-sale terminal need short-term backup. Students can use it for laptops and study lamps during night-time power cuts. Even a gaming console or a TV can stay on for a few minutes to avoid sudden shutdowns.
Benefits
- Stops data loss by giving you time to save work.
- Protects hardware from voltage spikes and sudden cuts.
- Quiet operation (25 dB) so it does not disturb a quiet room.
- Energy-efficient design (98 % efficiency) reduces electricity use.
- Easy setup with clear LED indicators and a short 1.5 m cable.
Key Features
- 330 W continuous output power.
- Six BS 1363 AC outlets for UK plugs.
- USB port for automatic shutdown communication.
- Auto shut-off feature protects the battery.
- 5 Ah, 12 V sealed lead-acid battery.
- LED status indicators for power and battery health.
- Compact tower shape, only 140 mm high.
- Weight of 3.2 kg makes it easy to move.
- Operating temperature range suitable for most rooms.
- Certified to IEC/EN 62040 standards for safety.
Specifications
| Features |
| Auto shut-off |
Yes |
| Noise level |
25 dB |
| Efficiency |
98% |
| Number of output phases |
1 |
| Output operation voltage (max) |
264 V |
| Output operation voltage (min) |
184 V |
| Input frequency |
46/70 Hz |
| Input operation voltage (max) |
264 V |
| Input operation voltage (min) |
184 V |
| Output power |
330 W |
| Ports & interfaces |
| USB port |
Yes |
| AC outlets quantity |
6 AC outlet(s) |
| AC outlet types |
BS 1363 |
| Battery |
| Battery capacity |
5 Ah |
| Battery voltage |
12 V |
| Battery capacity |
5 Ah |
| Battery capacity |
5 Ah |
| Design |
| LED indicators |
Yes |
| Cable length |
1.5 m |
| Product colour |
Black, White |
| Form factor |
Tower |
| Operational conditions |
| Operating altitude |
0 - 2000 m |
| Operating relative humidity (H-H) |
0 - 85% |
| Certificates |
| Certification |
IEC/EN 62040-1 EAC IEC/EN 62040-2 CE |
| Packaging content |
| Quick installation guide |
Yes |
| Manual |
Yes |
| Weight & dimensions |
| Weight |
3.2 kg |
| Height |
140 mm |
| Depth |
86 mm |
| Width |
325 mm |
