
Sentryum Active 30kVA: A Comprehensive Overview
Riello’s Sentryum Active 30kVA (ACT) delivers high efficiency with a small 0.35m2 footprint, offering unity power factor and parallel redundancy up to eight units.
The Riello Sentryum 30kVA ACT represents a cutting-edge approach to Uninterruptible Power Supply (UPS) technology. Distinguished by its absence of internal batteries, this model prioritizes efficiency and power density. It’s designed for environments demanding reliable, clean power without the limitations of traditional battery-based systems.
Featuring a unity power factor (1 kW = 1 kVA), the Sentryum Active 30kVA maximizes available power. Its compact footprint – just 0.35m2 – simplifies installation, while its parallel redundancy capabilities, supporting up to eight UPS units, ensure exceptional uptime.
Key Features and Benefits
The Sentryum Active 30kVA boasts several key advantages. Its battery-less design delivers 96.5% online efficiency, reducing operational costs and environmental impact. Unity power factor maximizes power utilization, supporting more critical loads.
Parallel redundancy, enabling configurations with up to eight units, provides exceptional availability. The compact 0.35m2 footprint simplifies placement, even in space-constrained environments. This UPS offers a robust, efficient, and scalable power protection solution for diverse applications.
Technical Specifications of the Sentryum 30kVA ACT
Sentryum 30kVA ACT models, like S3T/20/ACT/T4 and S3T 30 ACT A0, are three-phase UPS systems with specific output and input parameters.
Power Capacity and Output
The Sentryum 30kVA ACT provides a 30kVA/30kW output in a three-phase configuration. Notably, it boasts a unity power factor, meaning kVA equals kW, maximizing usable power.
The S3T 30 ACT T4 model delivers 6 minutes of runtime at full load, with options for extended battery packs to increase autonomy. The A0 variant also offers this capability. This design ensures consistent and reliable power delivery for critical applications, optimizing performance and minimizing downtime.
Input Voltage and Frequency
The Sentryum 30kVA ACT is designed for three-phase input, accepting a wide voltage range to accommodate various electrical environments. Both the S3T/20/ACT/T4 and S3T 30 ACT A0 models operate on three-phase power systems.
The supported input frequency is 50/60Hz, providing flexibility for international deployments. This adaptability ensures seamless integration into diverse power infrastructures, enhancing the UPS’s versatility and reliability for a broad range of applications.
Efficiency and Power Factor
The Sentryum 30kVA ACT boasts an impressive 96.5% online efficiency, minimizing energy loss and reducing operational costs. A key feature is its unity power factor (1 kW = 1 kVA), maximizing the utilization of available power and eliminating power factor correction needs.
This high efficiency, coupled with the unity power factor, contributes to a greener and more cost-effective solution, making it ideal for sensitive loads and demanding environments where power quality is paramount.

Understanding the ACT Technology
Sentryum ACT models uniquely operate without internal batteries, achieving high efficiency and delivering full-rated power with a unity power factor.
No Internal Batteries: Advantages
Riello’s ACT technology, eliminating internal batteries, provides significant advantages. This design results in higher efficiency – up to 96.5% online – and allows for a considerably smaller footprint, at just 0.35m2.
The absence of batteries also means reduced maintenance requirements and costs associated with periodic battery replacements. Furthermore, the Sentryum Active 30kVA delivers its full rated power, thanks to the unity power factor, maximizing the available power for critical loads. This approach enhances reliability and operational savings.
Unity Power Factor Explained
Unity power factor (1 kW = 1 kVA) signifies that all the power supplied is utilized for productive work, unlike traditional UPS systems with lower power factors. The Sentryum Active 30kVA achieves this, maximizing available power capacity and reducing energy waste.
This means the UPS can deliver its full kVA rating as kW, supporting a greater load without overloading. Consequently, users benefit from increased efficiency, reduced current draw, and optimized power distribution within their critical infrastructure.
Parallel Redundancy Capabilities
The Sentryum Active 30kVA offers exceptional scalability and reliability through its parallel redundancy feature, supporting configurations up to eight UPS units. This allows for increased power capacity and enhanced system availability.
In a parallel configuration, if one UPS module fails, the others seamlessly take over the load, ensuring continuous operation. This minimizes downtime and protects critical applications. Furthermore, parallel redundancy provides a modular approach to capacity expansion as power needs evolve.

Installation and Configuration
Sentryum Active 30kVA installation requires careful consideration of its compact footprint and supports parallel configuration of up to eight units for redundancy;
Footprint and Space Requirements
Riello Sentryum Active 30kVA units are designed for efficient space utilization, boasting a remarkably small 0.35m2 footprint. This compact design is a significant advantage in environments where floor space is limited, such as data centers or telecommunication rooms.
Proper ventilation is crucial during installation; ensure adequate airflow around the unit to maintain optimal operating temperatures. Refer to the detailed installation manual for specific clearance recommendations, guaranteeing reliable performance and longevity of the ACT system.
Parallel Configuration up to 8 UPS
The Sentryum Active 30kVA system offers exceptional scalability through its parallel configuration capabilities, supporting up to eight UPS units operating in unison. This feature provides increased power capacity and enhanced redundancy, ensuring continuous operation even in the event of a single unit failure.
Detailed instructions for configuring a parallel system are outlined in the comprehensive installation manual. Proper configuration is vital for optimal performance and reliable load sharing between the interconnected ACT units.
Battery Backup Options
Sentryum 30kVA ACT supports extended battery packs for increased runtime; standard models provide 6 minutes at full load, easily expandable.
Extended Battery Packs
Sentryum Active 30kVA systems offer the flexibility of adding external battery packs to significantly extend runtime beyond the standard six minutes at full load. These packs are designed for easy integration, allowing users to tailor the backup duration to their specific application requirements.
The ACT model supports one or two levels of internal battery backup, though this doesn’t apply to the 60 kVA/kW version. Selecting the appropriate battery pack size depends on the critical load and desired autonomy, ensuring uninterrupted power during outages.
Runtime at Full Load (6 Minutes Standard)
The Sentryum 30kVA ACT provides a standard runtime of six minutes at full load without any external battery packs connected. This initial backup duration is sufficient for short power interruptions or to allow for a graceful shutdown of critical equipment.
However, for applications requiring extended protection, the system is designed to accommodate external battery packs. The S3T 30 ACT T4 model, for example, offers this six-minute baseline, with options for increased autonomy.

Sentryum 30kVA ACT: Model Variations
Riello offers S3T/20/ACT/T4 (20kVA) and S3T 30 ACT A0 (30kVA) models, both three-phase, providing flexible power solutions with differing configurations.
S3T/20/ACT/T4 Model Details
The S3T/20/ACT/T4 is a three-phase Riello Sentryum model delivering 20kVA of power. This ACT version notably features no internal batteries, contributing to its high efficiency and compact design. It operates with a unity power factor, meaning 1kW equals 1kVA, maximizing power utilization.
This model is categorized under the Riello brand, specifically within their online UPS offerings. Detailed datasheets are available for comprehensive specifications, outlining its technical characteristics and operational parameters. It’s designed for environments requiring reliable power protection.
S3T 30 ACT A0 Model Details
The S3T 30 ACT A0 is a three-phase Riello Sentryum UPS offering 30kVA of power. A key characteristic of this model is the absence of internal batteries, resulting in enhanced efficiency and a full-rated power output with a unity power factor. This ACT version is designed for robust, reliable performance.
Detailed specifications are available in official datasheets, providing comprehensive technical information. It’s suitable for critical applications demanding consistent power, and can be configured with extended battery packs for increased runtime.

Datasheets and Documentation
Access official datasheets for detailed specifications of the AVARA Sentryum UPS (ACT, XTD models). These resources clarify UPS characteristics and functionality.
Accessing Official Datasheets
Datasheets for the Sentryum 30kVA ACT series, including models like S3T/20/ACT/T4 and S3T 30 ACT A0, are crucial for understanding the UPS’s capabilities. These documents, available through Riello’s official channels and authorized distributors like Critical Power Solutions, provide in-depth technical details.
They outline power capacity, input/output parameters, efficiency ratings, and ACT technology specifics. Reviewing these specifications ensures proper system integration and informed decision-making regarding extended battery packs and runtime configurations. Always refer to the latest version for accurate information.
Understanding UPS Specifications
Decoding UPS specifications for the Sentryum 30kVA ACT is vital for correct implementation. Key terms include kVA (apparent power), kW (real power – benefiting from unity power factor), and runtime, which is standard at six minutes at full load.
Understanding input voltage/frequency ranges and efficiency ratings (96.5% online) ensures compatibility. The ACT designation signifies the absence of internal batteries, impacting weight and efficiency. Refer to the datasheet for detailed parameters and model-specific details (e.g., S3T/20/ACT/T4).

Applications and Use Cases
The Sentryum 30kVA ACT is ideal for protecting critical loads in data centers, IT infrastructure, and industrial environments demanding high reliability.
Suitable Environments
The Riello Sentryum 30kVA ACT excels in environments requiring consistent, clean power without the limitations of traditional battery-based UPS systems. Its compact footprint makes it suitable for spaces with limited room, like server rooms and network closets.
Furthermore, the ACT’s design is well-suited for facilities prioritizing efficiency and reduced total cost of ownership. It’s an excellent choice for data centers, telecommunications facilities, and industrial applications where uptime is paramount and space is at a premium.
Critical Load Protection
The Sentryum 30kVA ACT provides robust critical load protection by delivering continuous, high-quality power. Its unity power factor ensures maximum power availability, safeguarding sensitive equipment from disruptions like voltage fluctuations, surges, and complete power outages.
Because of its ACT technology, it’s ideal for protecting servers, networking gear, and other vital infrastructure. The option for extended battery packs further enhances protection, offering customizable runtime to suit specific application needs and ensuring business continuity.

Maintenance and Support
Riello provides comprehensive support for the Sentryum 30kVA ACT, including readily available datasheets and assistance for troubleshooting common operational issues.
Availability of Support
Riello offers robust support channels for the Sentryum 30kVA ACT. Clients of Critical Power Alliance, a key partner, can rely on immediate assistance when needed. Access to detailed datasheets and comprehensive documentation is readily available online, aiding in self-troubleshooting and understanding UPS specifications.
Furthermore, Riello’s network of certified technicians provides on-site maintenance and repair services. Support extends to software and firmware updates, ensuring optimal performance and longevity of the ACT system. Prompt response times and expert guidance are prioritized to minimize downtime.
Troubleshooting Common Issues
Common issues with the Sentryum 30kVA ACT often relate to initial configuration or external factors. Reviewing the datasheet and UPS specifications can resolve many problems. Ensure proper input voltage and frequency alignment. If the unit doesn’t power on, check the power source and cabling.
For communication errors, verify network settings. Riello’s support documentation details diagnostic procedures. If issues persist, contact Critical Power Alliance for expert assistance. Remember, the ACT model’s lack of internal batteries simplifies troubleshooting related to battery failures.
Safety and Compliance
The Sentryum 30kVA ACT meets relevant industry certifications, ensuring operational safety. Always adhere to outlined operational safety guidelines detailed in the provided documentation.
Relevant Certifications
Riello’s Sentryum Active 30kVA undergoes rigorous testing to ensure adherence to international safety and performance standards. While specific certification details are found within the official datasheet, the unit generally complies with key regulations.
These include standards related to electromagnetic compatibility (EMC), safety (IEC/EN 60950-1 or equivalent), and potentially others depending on the target market. Verification of current certifications is crucial for regulatory compliance within specific installations. Refer to the documentation for a complete and up-to-date listing.
Operational Safety Guidelines
Sentryum Active 30kVA operation requires adherence to standard electrical safety procedures. Qualified personnel should handle installation and maintenance. Ensure proper grounding and avoid exceeding the specified input voltage range.
Regularly inspect connections for tightness and damage. Do not operate the UPS in hazardous environments or expose it to excessive moisture. Always disconnect power before performing any internal servicing. Refer to the comprehensive manual for detailed safety instructions and warnings to prevent electrical hazards.

Comparison with Other UPS Systems
The Sentryum ACT surpasses traditional UPS systems and even Riello’s XTD models with its unity power factor and battery-less design for efficiency.
Sentryum ACT vs. XTD Models
Riello’s Sentryum ACT distinguishes itself from the XTD series primarily through its innovative design, eliminating internal batteries. This results in a significantly smaller footprint and enhanced efficiency – boasting up to 96.5% online efficiency.
Unlike the XTD, the ACT delivers full-rated power with a unity power factor (1 kW = 1 kVA), maximizing usable power. While XTD models offer battery backup as standard, the ACT requires optional external battery packs for extended runtime, providing flexibility based on specific needs.
Advantages over Traditional UPS Systems
The Sentryum ACT offers distinct advantages over conventional UPS systems, notably its battery-less design. This eliminates battery maintenance, replacement costs, and disposal concerns, contributing to a lower total cost of ownership.
Its unity power factor maximizes available power, unlike traditional UPS systems that often have lower power factors. The compact footprint – just 0.35m2 – saves valuable space, and the high online efficiency (96.5%) reduces energy consumption and operational expenses.

Future Trends and Updates
Potential enhancements for the Sentryum ACT include software and firmware updates to optimize performance and integration with evolving IT infrastructure demands.
Potential Enhancements
Future development for the Sentryum 30kVA ACT could focus on advanced monitoring capabilities, providing more granular data on power usage and system health. Riello might integrate predictive maintenance features, leveraging data analytics to anticipate potential issues.
Improved remote management tools, enhanced cybersecurity protocols, and expanded compatibility with building management systems are also likely areas of focus. Further optimization of the ACT technology could lead to even higher efficiencies and reduced total cost of ownership for users.
Software and Firmware Updates
Regular software and firmware updates are crucial for maintaining optimal performance and security of the Sentryum 30kVA ACT. These updates typically address bug fixes, enhance system stability, and introduce new features.
Riello provides updates through their support channels, ensuring users have access to the latest improvements. Staying current with these releases is essential for maximizing the UPS’s efficiency, reliability, and compatibility with evolving IT infrastructure demands. Check the official datasheet for update procedures.