Surge arrester type T1+T2, 3-pole, Limp: 7 kA (10/350), In: 20kA (8/20), Imax: 50kA, Uc: 275V AC RSP-T1T2-AC 7/3P 2617127

Protection of electrical installations against overvoltage

This three-pole surge arrester from the RSP-T1T2-AC 7 series is a key element ensuring the safety of the electrical installation. It is designed to protect low-voltage devices against the effects of lightning strikes and overvoltages that can damage sensitive electronic equipment. Its construction based on a combination of a varistor and a spark gap guarantees a quick and effective response to sudden voltage increases.

Construction and application

This arrester combines the functions of two protection classes – T1 and T2. This means that it effectively suppresses both direct lightning strikes (class T1) and overvoltages induced in the power grid (class T2). It is an ideal solution for use in installations according to the concept of lightning protection zone LPZ 0-1, providing comprehensive protection. It will work well both in residential and commercial buildings, protecting devices such as televisions, computers, alarm systems or home automation.

Key parameters and benefits

• High efficiency: Peak current Limp at 7 kA (10/350 μs) and rated discharge current In of 20 kA (8/20 μs) guarantee effective protection against overvoltages.
• Wide range of protection: Maximum discharge current Imax of 50 kA provides protection even with strong discharges.
• Operating voltage: Maximum continuous operating voltage Uc at 275V AC makes the arrester compatible with most electrical installations.
• Safety and compliance with standards: The device's construction meets the requirements of IEC 61643-11:2011, which confirms its high quality and reliability.
• Versatility: Three-pole construction allows use in three-phase circuits, providing comprehensive protection for the entire installation.
• Fast response: Response time of less than 100 ms minimizes the risk of damage to connected devices.
• TOV overvoltage resistance: TOV (5 s) Ut withstand voltage of 355 V increases the device's resistance to long-term disturbances in the power grid.

This arrester is an investment in the safety of your electrical installation and protected devices. It provides peace of mind and minimizes the risk of costly repairs resulting from damage caused by overvoltages.