Surge arrester T2 20kA 1P 412220

Surge protection for your installation

This single-pole Class T2 surge arrester is a key element in protecting your electrical installation from the effects of lightning strikes and other surges. Designed for mounting on a TH-35 mm DIN rail, it occupies only one module, making it easy to integrate with your existing distribution board. The device effectively protects against damage to electrical equipment in homes, apartments and small commercial facilities.

Functionality and application

This arrester is designed to work with various network configurations – TN, TN-C, TN-C-S and others. Its task is to dissipate excess energy generated by surges, protecting connected devices from failure. Optical signaling informs about the operation of the arrester, allowing for quick identification of the problem and taking appropriate action. The rated discharge current of 5 kA provides effective protection under typical operating conditions, and the maximum energy discharge capacity is 20 kA.

• Versatility: Compatible with various network configurations (TN, TN-C, TN-C-S and others).
• Compact size: Occupies only 1 module on a DIN rail, making it easy to install even in crowded distribution boards.
• Quick diagnostics: Optical indication of the arrester status facilitates identification of any failures.
• Safety: Provides protection against the effects of surges, minimizing the risk of equipment damage and fires.
• Durability: Made of high-quality materials guaranteeing long-lasting and reliable operation.

Technical parameters and installation

The arrester is characterized by a rated voltage of AC 230 V and a maximum continuous operating voltage of AC 320 V. It can be used with wires with a cross-section of up to 35 mm² (single-/multi-strand) or 25 mm² (flexible). The lack of a built-in additional protection means that appropriate overcurrent protection must be used in the circuit. A protection level of 1.2 kV provides effective protection against high-energy surges. Installation is done by snapping onto a standard TH-35 mm DIN rail – a simple and quick procedure for every installer.