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| Unit Price: | £ |
| Part No: | RISDU4000 |
| Manufacturer No: | SDU 4000 |
| Delivery: | In Stock: 1-2 Days |
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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Product data is provided by Icecat, we do not warrant the accuracy of the material above.
