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Enterprise Resilience with Dual-Source Redundancy The Riello Sentinel Dual 6-10kVA Dual Input series is designed for mission-critical environments where power continuity is non-negotiable. Featuring a dual input architecture, these units allow for separate mains and bypass power sources, ensuring that your critical load remains protected even if one input line fails.

Equipped with an additional internal charger, this range is specifically optimised for systems requiring extended autonomy. By providing a higher charging current, these units ensure that large external battery banks are recharged rapidly, guaranteeing your system is ready for the next power event.

Riello SDU 6000 ER 6000VA Sentinel Dual UPS
Riello Logo
No internal batteries, Extra Charger - Hardwired

The Sentinel Dual SDU 6000 ER is a high-performance UPS solution designed to deliver reliable, efficient power protection for critical IT, industrial, and medical environments. Offering flexible rack or tower installation, advanced double conversion technology, and scalable power architecture, it ensures stable energy delivery even under demanding load conditions.

Key Features of Sentinel Dual SDU Installation flexibility: 3U/6U rackmount or freestanding tower format
95% online operating efficiency for reduced energy loss
Parallel capability up to 3 units for capacity or redundancy expansion
Hot-swap user-replaceable batteries for simplified maintenance
Automatic fan speed control keeps noise below 45 dBA
EnergyShare sockets for prioritising critical loads
Rotating LCD display for real-time UPS status and diagnostics
Compact edge-ready design suitable for dense installations
High Efficiency Power Conversion The Sentinel Dual operates in online double conversion mode, achieving up to 95% efficiency while maintaining consistent voltage regulation. This ensures minimal energy waste while delivering clean, stable output for sensitive equipment, even during fluctuating input conditions.

Flexible Installation Design Designed for adaptability, the unit can be deployed either as a 3U/6U rackmount system or a standalone tower. This versatility allows seamless integration into server rooms, edge environments, and industrial setups where space optimisation is essential.

Scalable Power Architecture Up to three Sentinel Dual units can be connected in parallel, enabling scalable power capacity or redundancy configurations. This makes it suitable for growing infrastructure where uptime and expansion flexibility are critical requirements.

Advanced Battery System Equipped with VRLA AGM maintenance-free batteries, the system supports hot-swap replacement for minimal downtime. Typical recharge time ranges from 4 to 6 hours, ensuring fast recovery after discharge events.

Output Performance and Load Handling With a rated output of 6000 VA / 6000 W and a crest factor of 3:1, the UPS is engineered to support non-linear loads efficiently. It maintains low harmonic distortion and stable sinusoidal output, making it suitable for sensitive and high-demand equipment.

Environmental and Acoustic Control Operating within a 0°C to +40°C range and humidity tolerance of 5–95%, the system is built for robust environmental performance. Adaptive fan control ensures low acoustic output, maintaining operational noise below 48 dBA in ECO mode.

Connectivity and Monitoring The UPS includes USB and RS232 communication ports, along with a dedicated slot for optional interface cards. A rotating LCD panel provides real-time insights into load levels, battery status, and system performance.

Compact Engineering and Build With a footprint of 448 x 131 x 640 mm in tower format (3U x 19” rack equivalent), and a weight of 20 kg, the Sentinel Dual is engineered for compact yet powerful deployment in constrained environments.

In Stock: 1-2 Days
£1797.22
£2156.66 Inc Vat
Add To Cart
Riello SDU 10000 DI ER 10000VA Sentinel Dual UPS
Riello Logo
no internal batteries - Extra Charger - Dual Input - Hardwired



Overview Highly versatile, quality power, excellent efficiency – just three reasons why the Sentinel Dual is one of Riello UPS’s best-selling products.

Available in 4-5-6-8-10 kVA power ratings, the SDU is designed to handle non-linear loads like blade servers and electro-medical devices, making it a great choice for protecting Edge applications too.

Parallel up to 3 Sentinel Duals together for greater power, autonomy, or redundancy. While extended runtime versions (6 kVA and 10 kVA models only) are available for applications needing several hours’ autonomy. Automatic and manual battery testing help enhance reliability and maximise lifespan.





Installation Versatility Doubly versatile SDU operates as either a 3U rackmount UPS (6U for 8-10 kVA versions) or as a floor-standing tower. Just use the rack supports or additional handles depending on your installation environment.

Easily rotate the backlit LCD display and control panel 90 degrees to suit your preferred configuration.





Simple Scalability Parallel up to 3 Sentinel Duals together to increase power, redundancy, or battery runtime. Can run multiple UPS in either capacity or N+1 parallel redundant configuration.





Prioritise Devices With Load Shedding A configurable EnergyShare IEC connection socket enables you to shut down non-critical loads in the event of a mains failure, prioritising battery runtime to your most important equipment.





Quality Power The SDU delivers unity power (except 4 kVA version) and 95% operating efficiency in ONLINE double conversion mode, meaning you get more real output power.

With a high overload (up to 150%) and short circuit capacity, it’s also designed to deal with non-linear loads with a crest factor up to 3:1.





Fantastic Functionality Choose from a range of operating modes including ECO (efficiency of 98%) and Smart Active. Generates minimal (< 45 dBA) noise as fan speed automatically adjusts depending on the load.

Automatic and manual battery testing, with hot-swappable, user-replaceable batteries that ensures downtime-free maintenance.



In Stock: 1-2 Days
£2613.22
£3135.86 Inc Vat
Add To Cart
Riello SDU 10000 DI 10000VA Sentinel Dual UPS
Riello Logo
Dual Input - Hardwired



Overview Highly versatile, quality power, excellent efficiency – just three reasons why the Sentinel Dual is one of Riello UPS’s best-selling products.

Available in 4-5-6-8-10 kVA power ratings, the SDU is designed to handle non-linear loads like blade servers and electro-medical devices, making it a great choice for protecting Edge applications too.

Parallel up to 3 Sentinel Duals together for greater power, autonomy, or redundancy. While extended runtime versions (6 kVA and 10 kVA models only) are available for applications needing several hours’ autonomy. Automatic and manual battery testing help enhance reliability and maximise lifespan.





Installation Versatility Doubly versatile SDU operates as either a 3U rackmount UPS (6U for 8-10 kVA versions) or as a floor-standing tower. Just use the rack supports or additional handles depending on your installation environment.

Easily rotate the backlit LCD display and control panel 90 degrees to suit your preferred configuration.





Simple Scalability Parallel up to 3 Sentinel Duals together to increase power, redundancy, or battery runtime. Can run multiple UPS in either capacity or N+1 parallel redundant configuration.





Prioritise Devices With Load Shedding A configurable EnergyShare IEC connection socket enables you to shut down non-critical loads in the event of a mains failure, prioritising battery runtime to your most important equipment.





Quality Power The SDU delivers unity power (except 4 kVA version) and 95% operating efficiency in ONLINE double conversion mode, meaning you get more real output power.

With a high overload (up to 150%) and short circuit capacity, it’s also designed to deal with non-linear loads with a crest factor up to 3:1.





Fantastic Functionality Choose from a range of operating modes including ECO (efficiency of 98%) and Smart Active. Generates minimal (< 45 dBA) noise as fan speed automatically adjusts depending on the load.

Automatic and manual battery testing, with hot-swappable, user-replaceable batteries that ensures downtime-free maintenance.



In Stock: 1-2 Days
£2613.22
£3135.86 Inc Vat
Add To Cart
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