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020 3337 8950Eaton 3S Gen2 550VA 330W 230V Offline UPS with 6× BS Outlets
Get it on Mon, 8th Jun! Order within 20 hrs 24 mins
Get standard delivery within 3-4 working days
- Input voltage range 184264V (161284V adjustable)
- Frequency range 4670 Hz
- Output voltage 230V (auto-regulated)
- Integrated surge protection
- USB HID + Eaton UPS Companion software
- Black/White Colour
- 3S550B
Product Overview
The Eaton 3S Gen2 550VA 330W 230V Offline UPS is a reliable uninterruptible power supply designed to protect sensitive electronic devices from power disturbances. With a capacity of 550VA and power output of 330W, this UPS is ideal for home and small office environments where preserving productivity during outages is crucial. Its compact design makes it easy to fit into various setups while ensuring that essential equipment remains operational during unexpected power cuts.
What Makes It Different?
What sets the Eaton 3S Gen2 apart from other UPS solutions is its combination of size, efficiency, and capacity suitable for everyday use. Designed specifically for smaller systems, it balances sufficient power output with an affordable price point, making it an attractive option for users who do not require the capabilities of larger, more complex UPS systems. This model is particularly focused on delivering reliable performance without unnecessary features that can add to the cost.
Additionally, the Eaton 3S Gen2 features six BS outlets, providing ample connectivity for multiple devices such as computers, monitors, and networking equipment. This multi-outlet configuration is beneficial for users looking to safeguard a complete workstation setup without needing to invest in a more premium model that often includes extra functionalities like advanced monitoring or additional battery capacity.
Performance & Everyday Use
The Eaton 3S Gen2 is equipped with a robust backup power capacity, ensuring that your essential equipment can remain operational during brief power outages. This UPS is designed for everyday tasks such as computing, streaming, and networking, making it well-suited for both home offices and casual users. With a 330W output, it can support smaller devices effectively, allowing time for safe shutdowns and the preservation of data.
Boasting an item weight of just 3.2 kg and compact dimensions of 325.0 mm x 86.0 mm x 140.0 mm, the Eaton 3S Gen2 is easy to position in any workspace without sacrificing valuable desk space. Its straightforward functionality means that it can be set up with minimal effort, making it accessible for users who may not have a technical background.
The offline design enhances its efficiency while protecting equipment from surges and fluctuations in power quality. However, users should note that, as an offline UPS, it is best suited for systems that do not require continuous power conditioning, ensuring that it meets the needs of standard office hardware without the cost of overly sophisticated features.
Why Choose This Eaton 3S Gen2 550VA 330W 230V Offline UPS?
When it comes to dependable power protection against outages, the Eaton 3S Gen2 stands out as a practical and user-friendly choice for everyday users.
- Compact and lightweight design, perfect for small spaces or home offices
- Affordable yet effective backup power source for a range of devices
- Six BS outlets allow for easy connection of multiple devices
- Simple setup process suitable for users of all technical levels
For those who need advanced features or higher power capacities, a more premium model may be necessary.
- Consider a more powerful UPS if you require longer backup times during outages
- If your devices include high-performance servers or specialised equipment, opt for a higher-tier model
- Advanced monitoring features may be needed for large-scale office environments or data centres
- For extensive setups, additional battery support could be essential for uninterrupted service
Great For
The Eaton 3S Gen2 550VA 330W is highly suitable for home users, students, and small office environments where reliable power protection is needed without the complexities of advanced features. It is ideal for users who require a dependable power source for general computing tasks, ensuring that their everyday productivity remains intact, even during power interruptions.
- Everyday office work, ensuring devices remain operational during outages
- Home study setups, providing backup for computers and learning technologies
- Casual gaming or streaming, protecting equipment from unexpected power loss
- General household use where limited power protection is sufficient
Specifications
Condition
| Condition | New |
Product Identifiers
| Sku | 3S550B |
| MPN | 3S550B |
| EAN | 3553340705052 |
| Type | UPS |
| Brand | Eaton |
| Model | 3S Gen2 |
General
| Colour | Black/White |
| Item Weight | 3.2 kg |
| Dimensions | (WxDxH) 325.0 mm x 86.0 mm x 140.0 mm |
Other Specifications
| Colour | Black/White |
Model Information
| Brand | Eaton |
| Model | 3S Gen2 |
From Manufacturer
Reviews
Eaton 3S Gen2 verified by feefo
Average rating based on 1 reviews

Chris
Perth
Published on
10-Apr-2023
Good Points: Good compact size, works well with Synology NAS using USB.
Simple to setup and efficient, proving my router, NAS and VOIP phone with 45mins backup time.
Improvement Points: Nothing to complain about.
£80.99
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