Riello BB STW 240-A3 Sentinel Tower - 7Ah Battery Ext Pack

The Riello BB STW 240-M1 offers increased capacity within the Sentinel Tower range, delivering robust single-phase power protection for higher-demand applications. It supports critical systems that require additional power headroom while maintaining precise voltage regulation and operational efficiency.

The Riello BB STW series Sentinel Tower is a high-performance UPS solution engineered to safeguard mission-critical systems, including safety devices, telecommunications infrastructure, and IT environments. Built with advanced power electronics and modern components, it delivers dependable power continuity while maintaining efficiency and protecting downstream systems from electrical disturbances.

Key Features of Riello BB STW Sentinel Tower

• Advanced diagnostics with status, measurements, and alarms via custom LCD display
• Low noise operation below 45 dBA for installation in noise-sensitive environments
• High frequency switching inverter with PWM, load-dependent digitally controlled fan (>20 kHz)
• Automatic restart when mains supply is restored, programmable through software
• Back feed protection as standard to prevent energy from returning to the network
• Flash upgradeable UPS digital firmware for system updates

Designed for Mission Critical Applications

Sentinel Tower is purpose-built for environments where power reliability is essential. Its architecture ensures continuous protection for sensitive electronic systems, reducing the risk of downtime and operational disruption.

Advanced Power Protection Technology

Utilising state-of-the-art inverter technology, the Riello BB STW series delivers stable, clean power with no impact on downstream equipment. This design helps maintain system integrity even under fluctuating input conditions.

Quiet Operation for Flexible Installation

With noise levels below 45 dBA, the Sentinel Tower can be installed in offices, control rooms, and technical spaces. Its digitally controlled, load-dependent fan operates at frequencies above the audible range for minimal acoustic impact.

Intelligent Monitoring and Diagnostics

A custom LCD display provides real-time access to operating status, measurements, and alarm information. This allows operators to quickly assess system performance and respond to power events with confidence.

Automatic Recovery and Network Protection

The auto-restart function enables the UPS to recover automatically when mains power returns, while integrated back feed protection prevents energy from being fed back into the electrical network, enhancing overall system safety.

Future-Ready Digital Architecture

Flash upgradeable firmware allows the Sentinel Tower to be digitally updated, ensuring long-term compatibility with evolving system requirements and maintaining optimal performance over time.