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| Unit Price: | £ |
| Part No: | RISTW10000ER |
| Manufacturer No: | STW 10000 ER |
| Delivery: | In Stock: 1-2 Days |
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The Riello Sentinel Tower (STW) is a high-efficiency online UPS system designed to deliver reliable power protection for IT infrastructure, telecom networks, and security systems with non-linear loads. Operating in the 5–10kVA range, it features a compact tower design, unity power factor, and up to 95% efficiency in online mode. Built for performance and flexibility, it supports parallel expansion, multiple operating modes, and advanced battery management, making it ideal for critical environments requiring stable and continuous power delivery.
The Sentinel Tower delivers up to 95% efficiency in online mode, reducing energy losses and improving operational cost efficiency while maintaining continuous power protection for critical loads.
Designed for space-constrained environments, the UPS features a compact 250 x 698 x 500 mm footprint with integrated castors, allowing easy installation and repositioning within IT and network environments.
With a unity power factor (kVA equals kW), the system delivers full rated power to connected equipment without derating, making it ideal for modern IT loads and high-density server environments.
The system supports up to three UPS units in parallel, enabling increased power capacity or redundant configurations for enhanced system reliability in critical applications.
Engineered for non-linear loads, the Sentinel Tower is well suited for blade servers and modern IT equipment, ensuring stable output even under highly dynamic load conditions.
Users can switch between ONLINE, ECO, and SMART ACTIVE modes via the front panel, allowing optimisation of efficiency, protection level, and operational performance based on demand.
The UPS incorporates automatic and manual battery testing functions, helping maintain battery health and extending service life by avoiding unnecessary discharge during minor mains fluctuations.
Suitable for data centres, telecom systems, security infrastructure, and IT networks, the Sentinel Tower ensures continuous and stable power delivery where uptime is essential.
Delivering more real power in a compact footprint, the Sentinel Tower (STW) series is a proven performer across a variety of applications, including blade servers, safety systems, and telecommunications networks.
Choice of 5-6-8-10 kVA power ratings, with the latter 2 suitable for use on three-phase distribution networks. Designed to deal with non-linear loads, delivers quality power (pf 1) at high efficiency (up to 95%).
3-level inverter helps deliver unity output power factor (kVA = kW) and achieve up to 95% efficiency in ONLINE mode, reducing unnecessary energy waste.
Designed to handle non-linear loads like blade servers and has high short circuit and overload capacity.
You can parallel up to 3 STWs together to increase capacity or ensure (2+1) redundancy. Parallel installations operate on a closed loop, meaning that they carry on running even if there’s an issue with the connection cables.
Revamped custom-designed LCD display panel shows crucial operating data, alarms, and statuses such as voltage, remaining battery, and current load. Easily adjust operating modes at the simple push of a button.
Whatever the power rating, the STW measures in at a compact 25 cm by 69.8 cm by 50 cm (W x D x H), with built-in castors assisting with mobility.
Minimal noise disruption as the fan speed automatically adjusts according to the current load.
STW features automatic and manual battery testing, while the batteries don’t cut in during temporary mains failures (< 20 msec) or if the input is between 184-276V, which helps to maintain lifespan.
For applications needing several hours’ autonomy, choose extended runtime versions (6 kVA and 10 kVA models) fitted with 6A chargers and connected to external battery boxes.
Product data is provided by Icecat, we do not warrant the accuracy of the material above.
