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| Unit Price: | £ |
| Part No: | RISDU8000 |
| Manufacturer No: | SDU 8000 |
| Delivery: | In Stock: 1-2 Days |
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The Sentinel Dual SDU is a high-performance uninterruptible power supply designed for critical environments requiring stable and efficient power protection. With a flexible rackmount or tower format and a power range of 4–10 kVA, it is suitable for server rooms, IT networks, medical systems, and industrial applications where consistent energy delivery and uptime are essential.
| USB Plug | Energy Share | ||
| Hot Swap Battery | ToweRack | ||
| E-Medical | Online | ||
| Industry | Emergency | ||
| SoHo | Transport | ||
| Eco Level 6 | Datacentre |
The Sentinel Dual SDU supports both rackmount and tower installation formats, allowing deployment in varied IT and industrial infrastructures. Its modular structure supports both compact server racks and standalone setups.
Operating in double conversion ONLINE mode, the system delivers up to 95% efficiency, reducing energy losses while maintaining consistent power quality for sensitive equipment.
Up to three units can be connected in parallel to increase total capacity or introduce redundancy, supporting scalable infrastructure growth and improved system resilience.
The UPS uses VRLA AGM maintenance-free batteries with typical recharge times of 4–6 hours. Hot-swap capability allows battery replacement without system downtime, improving operational continuity.
Intelligent fan speed regulation maintains low acoustic output below 48 dBA in ECO mode, ensuring suitability for office and clinical environments while optimising thermal performance.
The system supports non-linear loads with a crest factor of up to 3:1 and delivers high overload capability up to 150%, ensuring stable performance under demanding electrical conditions.
A rotating LCD panel provides real-time visibility of load, battery status, and operating conditions. USB, RS232, and communication slots enable integration into monitoring systems.
The SDU 8000 model delivers 8000 VA / 8000 W output at selectable 220/230/240 V with sinusoidal waveform output, voltage distortion below 3% under non-linear load, and high input power factor above 0.98.
Output options include terminal blocks, IEC 320 C13, and IEC 320 C19 sockets, supporting varied equipment connections with integrated protections against overcurrent, short circuit, and voltage anomalies.
Designed for operation between 0°C and 40°C with humidity tolerance up to 95% non-condensing, the system complies with IEC safety and EMC standards along with RoHS requirements.
The compact black RAL 9005 enclosure supports edge deployments and space-limited environments, with modular dimensions suitable for both rack and tower configurations.
Simplified installation

Operating mode selection
Functions can be programmed via software or manually via the front display panel.
High quality output voltage
High battery reliability
Emergency function
This configuration ensures the operation of those emergency systems that require continuous, reliable and long-lasting power supply in the event of a mains power failure, such as emergency lighting, fire detection/ extinguishing systems and alarms. When the mains power supply fails, the inverter begins powering the loads with a progressive startup (Soft Start) in order to prevent overload.
Battery optimisation
The wide input voltage range and a high holdup time minimise battery usage and increase efficiency and battery life; for smaller power breaks, energy is drawn from a group of appropriately-sized capacitors.
EnergyShare
10 A configurable IEC output sockets allow for runtime optimisation by programming the switching off of low priority loads on mains failure; alternatively, emergency loads that are normally not powered when mains is present can be activated.
Other features
Advanced communications
Unity Power Factor
2 Year Warranty
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USB Plug |
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Energy Share |
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Hot Swap Battery |
| ToweRack | |
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E-Medical |
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Online |
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Industry |
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Emergency |
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SoHo |
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Transport |
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Eco Level 6 |
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Datacentre |
Riello UPS 's social commitment aims to help the present as well as shape a bright future, combining the inevitable need for energy with environmental protection.
Riello UPS uninterruptible power supplies power some of the most critical data centres and servers in use today. Within these environments, energy management is critical. Running costs must be minimised without compromising resilience, i.e. the ability to adapt to adverse external conditions whilst ensuring the complete availability of the services provided. Equipment must operate at the highest possible levels of efficiency to reduce the strain on critical power supplies and minimise the effect on the installation area.
Riello UPS models have always been compliant with the highest levels of efficiency in terms of energy protection and are classified according to a scale with 6 levels, corresponding with the efficiency value of the UPS with respect to the European Code of Conduct; this is known as the Eco Energy Level.
The Eco Energy Level system demonstrates how the most efficient UPS provide energy savings that allow the cost of their purchase to be recovered quickly compared to standard efficiency UPS , as well as how their use leads to significant reductions in carbon emissions into the atmosphere.
Product data is provided by Icecat, we do not warrant the accuracy of the material above.