Surge arrester T2 (C) - with spark gap ETITEC C T2 255/20 G 002440413

Electrical installation protection with ETITEC C T2 surge limiters

The ETITEC C T2 255/20 G surge limiter is a key element in protecting electrical installations from the effects of surges, both resulting from lightning strikes and fast switching in the network. The device is designed for mounting on a TH-35 mm DIN rail and occupies only 1 module, allowing it to be easily integrated into existing switchboards. Its task is to minimize the risk of damage to electrical and electronic equipment, ensuring continuity of power supply and safety of use.

Construction and application

This limiter belongs to class T2, which means it effectively dissipates energy from high-energy surge pulses. It uses varistor technology, which ensures a quick response to sudden voltage increases. Optical indication of operation facilitates the identification of the need to replace the device after a surge. The use of the ETITEC C T2 limiter is particularly important in residential, commercial and industrial buildings, where sensitive electronic equipment is exposed to damage caused by surges. It is an ideal solution for both new installations and modernized surge protection systems.

Key features and benefits

• Versatility: Compatible with various network configurations – TN, TN-S, TN-C and TT – making it a universal solution for most installations.
• High efficiency: Rated discharge current of 20 kA (8/20 μs) and maximum discharge current of 40 kA provide effective protection against strong surges.
• Low protection level: L-N and N-PE protection level of 1.5 kV minimizes the risk of damage to connected devices.
• Easy installation: Compact size (1 module) and mounting on a TH-35 mm DIN rail facilitate and speed up installation.
• Optical signaling: Optical indicator informs about the operation of the limiter, allowing for quick identification of the need to replace the device.
• High resistance: Short-circuit strength (Isccr) at 25 kA guarantees stable operation even in difficult operating conditions.
• Connection flexibility: Possibility of connecting wires with a cross-section of up to 35 mm² (single-/multi-strand) and 25 mm² (flexible) ensures compatibility with various types of installations.
• Compliance with standards: The device meets the required safety and quality standards, guaranteeing reliable operation and long service life.