The Bremas photovoltaic product range: an advanced system
The Bremas solar range is a comprehensive system of technological solutions designed for photovoltaic systems, ensuring reliable performance under both standard and critical operating conditions.
Each product plays a specific and complementary role, enhancing overall system efficiency.
Bremas solutions can be installed between the panel strings and the inverter, as well as between the inverter and the distribution board. These are two critical areas where protection, isolation, and energy management become essential to ensuring long-term continuity, safety, and system performance.
SMART SOLAR SENTINEL: Intelligent Safety
Smart Solar Sentinel is the latest innovation in photovoltaic safety. Not just a disconnection device, but an intelligent system capable of operating in critical situations by automatically disconnecting and restarting DC lines in complete safety.
- Plug & Play system, easy to install and configure.
- Automated line disconnection and system restart.
- Modular solution adaptable to any type of installation.
- Advanced fire safety level compliant with the guidelines issued by the Central Directorate for Prevention and Technical Safety (DCPREV) of the Italian Fire Department, dated September 1st, 2025.
Wired DC String Boxes
Bremas string boxes are pre-wired solutions designed to simplify installation and increase the reliability of photovoltaic systems.
- Safe and organized string connection management.
- Protection, isolation, and control
- Maximum versatility with standard configurations for single-string, dual parallel-string, or dual independent-string systems.
- Customized solutions with wiring specifically configured for particular system requirements.
CEI 0-21 Interface Panels
Essential for safety and regulatory compliance, CEI 0-21 interface panels are certified solutions (IEC EN 61439-1/2) designed to ensure protection, isolation, and control of the connection point between the photovoltaic system and the public electricity distribution grid.
- Mandatory for systems above 11.08 kW.
- The interface protection system (SPI) continuously measures and monitors grid parameters.
- Equipped with thermal-magnetic and residual current protection devices sized according to system power and grid characteristics.
- Enhanced custom versions available with advanced monitoring systems to meet any technical requirement.
DC Disconnectors for Photovoltaic Systems
Specifically designed for DC applications, these devices ensure the safe isolation of strings during maintenance operations, emergency situations, or operational requirements.
- High-performance solutions featuring the most compact dimensions and the highest switching capacity available on the market.
- Premium-quality materials: exclusive alloy specifically developed for contacts, V0 self-extinguishing plastics for components, and UV-resistant finishes.
- Eight patents filed internationally.
Enclosed DC Disconnectors
Bremas enclosed DC disconnectors integrate disconnection functions into enclosures specifically designed to simplify installation and increase device protection.
- Ideal for outdoor applications, ensuring maximum reliability even in harsh weather conditions.
- Combining robustness, ease of assembly, and operational safety, reducing the risk of errors and optimizing long-term system management.
- Compact and ergonomic design specifically developed to facilitate terminal access, speeding up installation and maintenance operations.
SPD – DC and AC Surge Protection Devices
These devices provide surge protection, a key function in preserving the integrity of photovoltaic systems and their electrical components. Designed for both DC and AC installations, they ensure constant protection and safe management under all operating conditions.
- They prevent damage caused by atmospheric events or grid disturbances and can be integrated directly into field boxes or installed as standalone units.
- Models for DC photovoltaic applications optimized for systems up to 1000 Vdc (EN 50539-11 certified).
- Equipped with high-performance MOV varistors and, in the AC version, also with GDT tubes to optimize energy discharge capacity.
- The modular structure simplifies maintenance operations, while the OCFM disconnection system ensures controlled interruption of the device, preserving system continuity and safety.
DC Fuse Holders and Fuses
Bremas fuse holders are specifically designed for DC photovoltaic applications.
- Compact, modular, and easy to install, they represent a key element in protecting photovoltaic strings against overcurrents and faults.
- Their integration into string boxes and field systems contributes to effective electrical protection.
- Designed in compliance with current regulations.
Residual Current Circuit Breakers with Overcurrent Protection (RCBO)
The Bremas RCBO range completes the offering dedicated to photovoltaic systems, providing compact solutions for combined protection against overcurrents, short circuits, and earth leakage faults.
- Designed to ensure personnel safety and operational continuity.
- Ideal for use in AC panels, auxiliary circuits, and the protection of interface systems (SPI), as well as for loads requiring precise earth fault detection.
- Designed to integrate seamlessly into Bremas protection systems, RCBOs ensure effective energy control even during grid connection phases.
