Riello Sentinel Dual 5-10kVA Single Phase

The Sentinel Dual SDU 4000VA UPS is a high-performance double-conversion power protection system designed for critical IT, medical, and industrial environments. Offering flexible rack or tower installation, it delivers stable, high-efficiency backup power for sensitive equipment while ensuring continuous operation during outages and voltage disturbances.

Key Features of Sentinel Dual SDU Flexible installation as 3U/6U rackmount or freestanding tower
Up to 95% efficiency in ONLINE double conversion mode
Parallel operation support for up to 3 UPS units
Hot-swap user-replaceable batteries for easy maintenance
Automatic fan speed control keeps noise below 45 dBA
EnergyShare sockets for prioritising critical loads
Rotating LCD display for status, load, and battery monitoring
Compact design ideal for edge and server room applications
Flexible Deployment for Critical Infrastructure The Sentinel Dual SDU is engineered for maximum installation flexibility, allowing it to be deployed either as a rack-mounted unit or a freestanding tower. This makes it suitable for a wide range of environments including server rooms, medical facilities, and industrial systems where space and configuration requirements vary.

High-Efficiency Double Conversion Protection Operating in ONLINE double conversion mode, the SDU delivers up to 95% efficiency while providing continuous, clean power. This ensures full protection against voltage fluctuations, surges, and electrical noise, making it ideal for sensitive and mission-critical equipment.

Scalable Power and Redundancy Options The system supports parallel configuration of up to three units, allowing users to increase capacity, build redundancy, or extend runtime. This scalability makes it suitable for growing IT environments and high-availability infrastructures.

Simplified Maintenance and Battery Management Equipped with hot-swap, user-replaceable batteries, the SDU enables maintenance without downtime. This design improves serviceability and ensures continuous protection even during battery replacement procedures.

Quiet and Adaptive Cooling System The UPS features intelligent fan speed control that adjusts based on load demand. This helps maintain low noise levels below 45 dBA during typical operation while ensuring effective cooling under higher workloads.

Intuitive Monitoring and Load Prioritisation A rotating LCD display provides clear real-time information on system status, load levels, and battery condition. EnergyShare sockets allow users to prioritise critical equipment, extending backup runtime for essential systems during outages.

Optimised for Edge and Critical Applications With its compact footprint and high-performance output, the Sentinel Dual SDU is ideal for edge computing environments and mission-critical installations where reliability, efficiency, and space optimisation are essential.

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.

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.

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 Key Features of Sentinel Dual SDU Installation flexibility: 3U/6U rackmount or freestanding tower configuration
Up to 95% efficiency in ONLINE double conversion mode
Parallel operation of up to 3 UPS units for scalability or redundancy
User-replaceable hot-swap batteries for simplified maintenance
Automatic fan speed control for reduced acoustic output below 45dBA
EnergyShare sockets for prioritised load management
Rotating LCD display for real-time UPS status monitoring
Compact footprint designed for edge computing environments
Installation Flexibility 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.

Energy Efficiency & Online Operation Operating in double conversion ONLINE mode, the system delivers up to 95% efficiency, reducing energy losses while maintaining consistent power quality for sensitive equipment.

Parallel Expansion Capability Up to three units can be connected in parallel to increase total capacity or introduce redundancy, supporting scalable infrastructure growth and improved system resilience.

Battery System & Runtime 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.

Noise Control & Thermal Management 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.

Power Quality & Load Handling 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.

Monitoring & Control Interface 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.

Electrical Specifications 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 Connectivity & Protection 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.

Environmental Standards & Operating Conditions 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.

Physical Design & Build The compact black RAL 9005 enclosure supports edge deployments and space-limited environments, with modular dimensions suitable for both rack and tower configurations.

The Sentinel Dual SDU 10000VA UPS is a high-performance double-conversion power protection system designed for critical IT infrastructure, medical environments, industrial applications, and edge computing. Delivering flexible rack or tower installation with scalable power and high efficiency, it ensures continuous, stable power for mission-critical loads.

USB Plug

Energy Share

Hot Swap Battery

Tower / Rack

E-Medical

Online

Industry

Emergency

SoHo

Transport

Eco Level 6

Datacentre

Key Features of Sentinel Dual SDU 10000VA 10000VA double-conversion UPS for critical infrastructure protection
Flexible installation as rackmount or freestanding tower
Up to 95% efficiency in ONLINE mode for reduced energy waste
Parallel operation support for up to 3 UPS units
Hot-swap user-replaceable batteries for continuous uptime
Load-controlled fan system keeps noise below 45 dBA
EnergyShare sockets for prioritising critical loads
Rotating LCD display for real-time status monitoring


High Availability Power for Critical Systems The Sentinel Dual SDU 10000VA is designed to deliver uninterrupted, high-quality power for environments where downtime is not acceptable. Its double-conversion architecture ensures clean, stable output for servers, medical devices, and industrial systems.

Flexible Deployment for Any Environment This UPS supports both rackmount and tower configurations, allowing seamless integration into data centres, server rooms, and edge installations. Its compact yet powerful design makes it adaptable to a wide range of infrastructure layouts.

Scalable Power and Redundancy Options The system supports parallel operation of up to three units, enabling users to scale capacity or build redundancy into their power architecture. This makes it suitable for growing IT environments and high-availability systems.

Efficient Operation with Reduced Energy Waste Operating at up to 95% efficiency in ONLINE mode, the SDU reduces energy loss while maintaining continuous double-conversion protection. This ensures both performance and operational cost efficiency in demanding environments.

Advanced Maintenance and Battery Management Hot-swap battery technology allows maintenance or replacement without powering down connected equipment. This ensures continuous protection and simplifies service operations in critical environments.

Intelligent Cooling and Quiet Performance The load-controlled fan system automatically adjusts speed based on demand, maintaining low noise levels while ensuring effective thermal management even under heavy load conditions.

Clear Monitoring and Load Prioritisation A rotating LCD display provides real-time system status, including load and battery conditions. EnergyShare sockets allow prioritisation of essential equipment to extend runtime during power events.