Surge arrester, 3p Type 1+2 (class B+C) type PS3-B+C TNC 5089754

Protection of electrical installations and devices

This three-pole surge protector, class 1+2 (B+C), is a key element of a system protecting against the effects of lightning strikes and overvoltages in the electrical installation. It provides comprehensive protection against both direct and indirect lightning strikes, minimizing the risk of damage to connected devices. This is particularly important in telecommunication systems, industrial plants, and in buildings with increased safety requirements.

Design and application

This surge protector is designed to equalize the potential of lightning protection according to VDE 0185-305 (IEC 62305) standard. Its design allows for the discharge of lightning current up to 50 kA (10/350 µs) per pole, effectively protecting the circuit from overload and short circuit. Thanks to the pre-assembled construction – consisting of a base and inserts – installation is quick and easy, which will be appreciated by both installers and end-users. Connecting bridges and clearly marked connection terminals facilitate the correct connection of wires with a cross-section of up to 50 mm².

Key features and benefits

• High protection efficiency: Protection level of 1.7 kV guarantees effective protection against overvoltages.
• Versatility: Protection class Type 1+2 (B+C) makes these surge protectors suitable for use in various types of installations.
• Safety: Closed, explosion-proof design allows for safe use in electrical switchboards.
• Optical signaling: Built-in optical indicator informs about the operation of the surge protector, which facilitates the diagnosis of potential problems.
• High follow current extinguishing capacity: Follow current extinguishing capacity at 25 kA provides additional safety for the installation.
• Easy installation: Ready-to-connect set with connecting bridges and marked terminals speeds up installation.
• Durability: Made of high-quality materials guarantees long-lasting and reliable operation.