Surge arrester type T1+T2, 3-pole, 1000 V DC, Iimp: 9kA (10/350), Imax: 50kA, In: 20kA (8/20) RSP-T1T2-DC 9/3P 2617144

DC Installation Protection – Reliability and Safety

This three-pole surge protector of the RSP-T1T2-DC series is designed to protect direct current (DC) installations from the effects of lightning strikes and surges. Protection class T1+T2 provides comprehensive protection by combining the features of a Class 1 and Class 2 surge protector. This is an ideal solution for both installers and end-users who value safety and long-term system operation.

Construction and Application

This surge protector is used in photovoltaic installations, emergency power systems and other DC applications requiring a high level of surge protection. Mounting on a 35 mm rail simplifies integration with existing electrical infrastructure. The use of high-energy MOV (metal oxide varistor) varistors ensures effective surge suppression, and built-in thermal disconnectors increase safety. The modular design allows for easy replacement in case of failure.

Key Parameters and Benefits

• High protection efficiency: Peak current Iimp at 9kA (10/350) and maximum discharge current Imax 50kA guarantee protection against even strong surges.
• Versatility: Designed to operate at 1000V DC, making it compatible with most modern photovoltaic and DC systems.
• Compliance with standards: Ensures compliance with applicable IEC 61643-31:2018 standards, confirming its quality and safety.
• Durable construction: Made of high-quality materials, resistant to weathering and mechanical damage.
• Fast response: Response time of less than 100 ns minimizes the risk of damage to connected devices.
• Status indicator: Built-in optical indicator informs about the status of the surge protector, facilitating diagnostics and maintenance.
• Wide operating temperature range: Ability to operate at temperatures from -40°C to +80°C (parallel connection) ensures reliability in various environmental conditions.

Maximum continuous operating voltage of 1000V DC ensures compatibility with most photovoltaic installations. The rated discharge current is 20kA (8/20 μs), and the maximum discharge current is 50kA (8/20 μs). The peak current Iimp is 9 kA (10/350 μs), and the protection level Up is 4.5 kV. This surge protector can operate in a wide temperature range from -40°C to +80°C (parallel connection) or -40°C to +60°C (through connection), and the permissible cross-section of conductors connected to the terminals is 35 mm² (solid) or 50 mm² (stranded).

The RSP-T1T2-DC 9/3P surge protector is an investment in the safety and reliability of your DC installation – for both professionals and end-users.