Specially designed for safe use in solar systems, Sigma 800V AC NH Blade Fuses belong to the fusible wire fuse group and ensure protection against overload currents and short circuits through the thermal melting and multi-point severance of the internal wire. Quartz sand fills the gaps between the severed parts, completely cutting off electrical conduction to provide the necessary protection.

Enhanced safety is achieved with the steatite body material, which is extremely resistant to short circuits, pressure, and high temperatures. Thanks to the dual-indicator design, the deactivation of the NH fuse can be easily observed.

The 800V AC String Inverter Protection Surge Protection Device is specially designed to protect string inverters in solar energy systems. Sigma String Inverter Protection Surge Protective Devices safeguard the sensitive electronic components of string inverters by shunting lightning- and grid-induced transient overvoltages to earth. Offering easy installation and maintenance thanks to its modular design, it maximizes the energy generation continuity of your facility.

Soligma Series Air Circuit Breakers are specially designed for Solar Energy Systems (operating at an 800 V AC voltage). With their innovative technological features, they protect the connected system and electronic devices against overload, short circuits, and earth faults. Thanks to their remote-communicating electronic trip unit and 65 kA short-circuit breaking capacity, they deliver fast detection and tripping performance in fault conditions.

Thanks to their LSIG Protection, Soligma Series Air Circuit Breakers provide superior protection in your system with the following features:

• Long Time Delay (L): Long-term inverse time-delayed overload protection
• Short Time Delay (S): Short-term delayed overcurrent protection
• Instantaneous Tripping (I): Tripping function for short-circuit currents
• Ground Fault Delay (G): Earth fault protection

Sigma 800V AC Horizontal Fuse Switch Disconnectors are specially developed for the high-voltage requirements of solar systems. Operating integrated with NH fuses, horizontal fuse-switch disconnectors are critical circuit devices that provide manual control of the circuit as well as superior protection against short-circuit and overload currents.

Soligma Series Horizontal Fuse Switch Disconnectors are manufactured in compliance with TS EN 60947-3 standards and CE norms. The housing material consists of a thermoplastic material resistant up to 960 °C, and the current-carrying parts are made of 99.9% pure electrolytic copper.

Sigma Soligma Series Moulded Case Circuit Breakers are specially designed for the technical requirements of Solar Energy Systems operating at an 800 V AC voltage, offering maximum security switching and superior protection performance in photovoltaic systems thanks to their advanced features.

Double Break Short-Circuit Breaking System

Thanks to their Double Break short-circuit breaking system, Soligma Series Moulded Case Circuit Breakers can safely interrupt short-circuit currents of up to 150 kA utilizing current-limiting technology.

Soligma Series Moulded Case Circuit Breakers are manufactured in compliance with IEC/EN 60947-2 standards.

Sigma DC Moulded Case Circuit Breakers are designed to ensure the safety of DC-powered electrical equipment. Thanks to their high-performance structure, they provide effective protection in various DC applications such as solar energy systems, industry, energy storage, control systems, battery banks, and UPS.

Sigma DC Miniature Circuit Breakers are high-performance protective devices developed to safely protect all DC loads such as solar energy systems, inverters, and electric vehicle chargers.

DC cartridge fuses are a type of fuse used in DC circuits that offers high performance. They are particularly preferred in solar energy systems and automation panels. They save space in photovoltaic systems.

DC Surge Protection Devices are protective equipment designed to safeguard systems and their components against lightning and transient overvoltage surges, particularly in solar energy systems.