Surge arrester T1, T2 (B, C) - spark gap ETITEC GSM T12 275/25 3+1 002440610

Surge protection in electrical installations

The ETITEC GSM T12 275/25 3+1 surge arrester is an advanced device designed to protect electrical installations from the effects of voltage surges caused, for example, by lightning strikes. It is a key element ensuring the safety of equipment and continuity of power supply, especially in places exposed to frequent storms or near transmission lines. The design based on spark gaps ensures a quick and effective response to sudden voltage increases.

Versatility and application

This surge arrester is used in installations with a voltage of 230V, both in TT, TN-S and TN systems. The possibility of mounting on a TH-35 mm DIN rail makes it easy to integrate with existing electrical distribution boards. The wire cross-section up to 35 mm² (stranded) and 25 mm² (flexible) allows connection of most standard cables used in residential and commercial buildings. The device is classified as Type 1+2, which means it provides protection against both direct and indirect lightning strikes.

Key features and benefits

• High protection efficiency: Protection level of 1.55 kV guarantees protection of sensitive electronic devices against damage caused by overvoltages. Additional N-PE protection is 1.5kV and L-N is also 1.5kV

• Fast response: Surge current of 25 kA and specific energy of 156.2 kJ/Ohm allow for effective dissipation of surge energy without damaging the device.

• Multipolarity: 3+1 design provides protection for all phase conductors and the neutral, increasing the safety of the entire system.

• Optical signaling: Built-in optical indicator informs about the operation of the arrester, which facilitates diagnostics and quick replacement of the damaged element.

• Compact dimensions: Size of 4 modules allows easy mounting of the arrester even in tight electrical distribution boards.

• Follow current extinguishing capacity: Follow current extinguishing capacity at 50 kA provides additional safety after a surge occurs.

• Universal mounting: Possibility of mounting in various network configurations (TT, TN-S) increases the range of application of the device.

The ETITEC GSM T12 surge arrester is a reliable solution for anyone who cares about the safety of their electrical installation and protects valuable equipment from the effects of surges. Its versatility and ease of installation make it an ideal choice for both professional installers and conscious end-users.