Name: Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s)
Brand: Eaton
SKU: cmnozgkhncoidnst2ayh03glw
Availability: InStock

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Description

330 W. 6 AC outlet(s). 12 V 5 Ah. Tower Black, White. 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 voltage. 12 V. 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 62040-1EACIEC/EN 62040-2CE. Packaging content. Quick installation guide. Yes. Manual. Yes. Weight & dimensions. Weight. 3.2 kg. Height. 140 mm. Depth. 86 mm. Width. 325 mm. leaflet

Full specifications

Marque	Eaton
Référence fabricant	3s550b
EAN	3553340705052

Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s): complete technical analysis for 2026

The Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) meets the expectations of buyers who want a quality product without paying over the odds. Thanks to our comparison tool, find the best offer among all partner retailers listed on Compiral. The trust rating shown for each retailer helps you choose a reliable shop with clear return conditions and responsive customer service. If you are unsure, also check the Eaton 3S700B uninterruptible power supply (UPS) 420 W 8 AC outlet(s) from the same brand. A good price comparison can save you between 10% and 30% on your purchase depending on the time of year and available retailers.

Who is this Informatique for?

The Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) benefits from the expertise of Eaton in this category. Its design meets current market standards and satisfies even the most demanding users in their everyday activities. The brand's reliability translates into positive feedback from regular buyers, who particularly appreciate the consistency between the promises of the product sheet and the real-world experience. For the Informatique category, this is an option we recommend without hesitation.

For intensive or occasional use

The Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) adapts to different levels of use in the Informatique category. Whether you use it intensively every day or more occasionally, this Eaton product offers appreciated versatility. Regular users value its reliability over time, while occasional users appreciate how easy it is to pick up without any special training. For even more demanding use, also check the Eaton 3S700B uninterruptible power supply (UPS) 420 W 8 AC outlet(s).

Against the competition

In the Informatique market, the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) is well positioned thanks to its price from £85.94 and the strength of Eaton. Our comparison tool lets you verify in real time whether this positioning still holds against other available offers.

Market price ranges in 2026

Range	Indicative price	For whom	What you get
Entry-level	Under 384300 £	Tight budget, occasional use	Essential features, reliable for beginners
Mid-range	384300 £ to 896710 £	Regular daily use	Good value for money, solid performance
High-end	Over 896710 £	Demanding users	The best of the category, all advanced features

The best times to buy the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) at a lower price are Black Friday in November, the January sales and the summer sales in July. Our price history lets you judge whether the current price is a genuine bargain or whether it is worth waiting a few weeks. Outside these periods, flash promotions remain frequent among Compiral's partner retailers.

Frequently asked questions about Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s)

How does the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) compare to competitors in the Informatique category?

In the Informatique category, the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) occupies a specific market segment. Compared to other available models, it stands out mainly through the balance between its features and its price. To compare objectively, consult the detailed spec sheet on this page and compare specifications with other similar products listed on our comparison tool.

Is the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) suitable for beginners?

Yes, the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) is generally appreciated by both beginners and regular users of the Informatique category. It is quick to set up and Eaton usually provides clear documentation. If you are new to this product category, consult the spec sheet on this page to identify the key criteria to check before making your choice.

Is there a refurbished version of the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s)?

Refurbished versions of the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) may be available from certain Compiral partner retailers. These refurbished products allow you to save between 20% and 40% compared to the new price while still benefiting from a warranty. Check availability in our offers table and review the warranty conditions offered by the retailer.

When do prices for the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) drop during the year?

Prices for the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) typically drop during Black Friday (November), the January sales and the summer sales (July). Promotional deals are also common around Cyber Monday and the holiday season. Our price history lets you spot trends and assess whether a price drop is likely soon in the Informatique category.

Is delivery free for the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) at all retailers?

Free delivery is not guaranteed for the Eaton 3S550B uninterruptible power supply (UPS) 330 W 6 AC outlet(s) at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.