Surge arrester type T2+T3, 3-pole, In: 10kA (8/20), Imax: 20kA, Uc: 275-385V RSP-T2T3-AC/3P 2617139

Protection of electrical installations against overvoltage

This three-pole surge protector from the RSP-T2T3-AC series is a key element ensuring the safety and reliability of the electrical installation. Designed to protect low-voltage devices against the effects of lightning strikes and overvoltages, it is an integral part of the lightning protection system in LPZ 0-1 zones. Its construction based on varistor-spark gap technology guarantees effective protection against sudden voltage increases.

Construction and application

This surge protector is used in AC installations where high protection efficiency against overvoltages is required. Thanks to its parameters, it is ideal for both new installations and modernization of existing ones. The fast response time (≤ 25ns) allows for almost instantaneous limitation of overvoltages, minimizing the risk of damage to connected devices. The rated discharge current of 10kA (8/20) and the maximum discharge current of 20kA demonstrate its high efficiency. The continuous operating voltage in the range of 275-385V makes it compatible with most standard electrical installations.

Key features and benefits

• Versatility: Type T2+T3 surge protector combines the functions of two protection classes, providing comprehensive protection against various types of overvoltages.
• Fast response: Response time below 25 nanoseconds minimizes the exposure of devices to the harmful effects of overvoltages.
• High efficiency: Rated discharge current of 10kA (8/20) and maximum discharge current of 20kA guarantee effective protection even with strong overvoltages.
• Safety: Protection level ≤1.5kV ensures safe limitation of voltage to a level acceptable for most electrical devices.
• Universality: Designed for three-phase installations, making it an ideal solution for homes, commercial buildings and industrial facilities.
• Compliance with standards: Design compliant with IEC 61643-11:2011 ensures a high standard of quality and safety.
• Short-circuit protection: The possibility of using a maximum 125A gL/gG fuse provides additional protection of the installation against the effects of short circuits.

This surge protector is characterized by the following parameters: type T2+T3, number of poles 3, rated discharge current (In) 10 kA (8/20 μs), maximum discharge current (Imax) 20 kA (8/20 μs), continuous operating voltage (Uc) 275-385 V AC, protection level (Up) ≤ 1.5 kV, response time ≤ 25 ns and maximum overcurrent protection 125 A gL/gG.

This surge protector is an investment in the long-term protection of your electrical installation and the devices connected to it – both for professionals performing installations and for users who value the safety and reliability of the electrical system.