Surge arrester T2 (C) - for PV systems ETITEC M T2 PV 250/20 Y RC 002440733

Photovoltaic installation protection – reliability and safety

Surge arrester ETITEC M T2 PV 250/20 Y RC is a key element in protecting photovoltaic installations from the effects of lightning strikes and surges. A Class T2 device, specifically designed for DC systems, effectively protects sensitive components such as inverters and solar panels from damage. Its function is to divert excess energy to ground, minimizing the risk of failure and ensuring continuous system operation.

Design and application

This surge arrester is mounted on a 35 mm DIN rail, making it easy to integrate with existing electrical infrastructure. Compact dimensions (3 modules) allow for installation in standard distribution boards. Optical indication of the device status informs about possible operation, enabling quick reaction and problem diagnosis. Designed to operate in installations with a rated voltage of up to 250 V DC, it is perfect for typical photovoltaic systems used in homes and businesses. The use of MOV (Metal Oxide Varistor) technology guarantees a fast and effective response to surges.

Key features and benefits

• High protection efficiency: Rated discharge current of 20 kA (8/20) provides effective protection against strong surges. The maximum discharge current reaches as much as 50 kA, providing an additional margin of safety.
• Status indication: Built-in optical indicator informs about the operation of the arrester, making it easier to identify problems and react quickly to service. This is particularly important for installers during system inspections and maintenance.
• Versatility: The possibility of connecting wires with a cross-section of up to 35 mm² (single-/multi-stranded) and 25 mm² (flexible) ensures compatibility with various types of cabling used in photovoltaic installations.
• Remote signaling: The presence of a remote signaling contact enables integration with monitoring and alarm systems, providing continuous supervision of the protection status.
• Solid construction: Made of high-quality materials, guaranteeing durability and reliability of the device even in harsh operating conditions.
• Compliance with standards: The surge arrester meets the required safety standards, confirming its high quality and reliability.
• Compact dimensions: Occupies only 3 modules on the DIN rail, allowing for easy integration with existing electrical infrastructure without the need to modify the distribution board.