Surge arrester type T2+T3, pole 3+NPE, In: 10kA (8/20), Imax: 20kA, Uc: 255-385V RSP-T2T3-AC/3+NPE 2617142

Protection of electrical installations against overvoltage

This type T2+T3 surge protector is a key element in protecting electrical installations in residential and commercial buildings. It provides protection against the effects of lightning strikes and overvoltages in the power grid, minimizing the risk of damage to connected devices. The 3+NPE construction makes it ideal for three-phase systems with a neutral-earth conductor.

This surge protector combines the features of type T2 and T3 surge protectors, which means it effectively suppresses both strong current impulses (T2) and smaller, but more frequent disturbances (T3). This ensures comprehensive protection of the installation and devices. A fast response time – less than 25 nanoseconds – guarantees almost instantaneous overvoltage limitation before they can cause damage.

Key features and benefits

• High protection efficiency: Rated discharge current of 10kA (8/20) and maximum discharge current of 20kA provide effective protection against even strong overvoltages.
• Wide operating voltage range: Maximum continuous operating voltage Uc in the range of 255-385V allows for use in various electrical networks.
• Universal application: The surge protector is designed for AC installations and can be used in accordance with the concept of lightning protection zones LPZ 0-1.
• Fast response: Response time of less than 25ns minimizes the duration of the overvoltage, protecting sensitive electronic devices.
• 3+NPE construction: Provides full protection in three-phase systems with a neutral-earth conductor.
• Compliance with standards: The surge protector is designed in accordance with IEC 61643-11:2011, which guarantees its safety and reliability.

The surge protector is characterized by a rated discharge current In of 10kA (8/20), and the maximum discharge current Imax reaches 20kA. The maximum continuous operating voltage Uc is from 255 to 385V, and the protection level does not exceed 1.5kV. The response time of the surge protector is less than 25 nanoseconds.

Installing this surge protector is an investment in the safety and long-term efficiency of the entire electrical installation. It protects not only devices but also provides peace of mind for users. This is especially important for sensitive electronic devices, such as computers, televisions and audio-video equipment, which are susceptible to damage caused by overvoltages.