Modular surge arrester MOD. SM T12 PV 600/12.5 S 002440632

Photovoltaic installation protection – reliability and safety

The modular surge arrester MOD. SM T12 PV 600/12,5 S is a key element in protecting photovoltaic installations from the effects of overvoltages, both from atmospheric discharges and network disturbances. Its task is to protect PV modules and other system components, minimizing the risk of failure and ensuring long-term installation efficiency. The modular design facilitates replacement in the event of a failure, and the compact size allows for easy mounting in a distribution box.

Construction and application

This arrester is designed to work with ETITEC SM T12 PV systems, forming an integral part of a comprehensive surge protection solution. It utilizes varistor technology combined with a spark gap, which ensures a quick and effective response to sudden voltage increases. This is a Class I and Class II device, which means it offers a wide range of protection, covering both direct lightning strikes (Class I) and overvoltages from network switching (Class II). Its compact size – only 1 module – makes it easy to integrate with existing infrastructure.

Key features and benefits

• Effective protection: Rated discharge current of 20 kA (In) and maximum discharge current of 40 kA (Imax) guarantee high resistance to overvoltages.
• Fast response: Impact current of 6.25 kA (Iimp) ensures a rapid response to sudden voltage increases, minimizing the risk of damage.
• Safety: No leakage current eliminates the risk of additional energy losses and ensures safe operation.
• Replaceable design: The modular construction allows for quick and easy replacement of a damaged element without the need to disassemble the entire distribution box.
• Versatility: Designed for use in DC installations with a maximum continuous operating voltage of 600V.
• Internal thermal protection: Each pole has an internal thermal disconnector, increasing the safety of the device.
• Easy installation: Base mounting facilitates integration with existing electrical infrastructure.
• Compliance with standards: Meets the requirements of IEC/VDE standards (Class I, II / B, C), ensuring compliance with applicable regulations.