Surge arrester T2 (C) ETITEC C T2 275/20 3+1 002440403

Electrical installation protection with ETITEC C T2 surge limiters

The ETITEC C T2 275/20 3+1 surge limiter is a key element in protecting electrical installations from the effects of lightning strikes and voltage surges in the network. A Class T2 device, designed to work with other lightning protection elements, effectively protects electrical and electronic devices from damage caused by sudden voltage increases. This is particularly important in residential, commercial and industrial buildings, where failures caused by surges can generate significant financial losses and downtime.

Construction and application

This limiter is designed for mounting on a DIN TH-35 mm mounting rail and occupies 4 modules. It provides protection in TN-S and TT systems, as well as in TN systems. Its construction based on MOV (Metal Oxide Varistor) technology guarantees a quick response to surges and effectively limits their level to 1.5 kV. It is designed to protect circuits with a maximum conductor cross-section of up to 35 mm² (stranded) and 25 mm² (flexible). Optical indication of operation facilitates the identification of a situation where the limiter has reacted to a surge, allowing for quick diagnosis and possible device replacement.

Key features and benefits

• High protection efficiency: Rated discharge current of 20 kA and maximum discharge current of 40 kA provide effective protection against most surges occurring in electrical installations.
• Versatile application: The ability to mount in different network configurations (TN-S, TT, TN) makes the limiter compatible with a wide range of installations.
• Fast response: MOV technology ensures a lightning-fast response to surges, minimizing the risk of damage to connected devices.
• Status indicator: Optical indication of operation informs about the need to replace the device after a strong surge.
• Durable construction: Made of high-quality materials guarantees reliable operation for a long time.
• Safety: Short-circuit strength at the level of 25 kA provides additional safety of the installation in the event of a short circuit.
• Compact dimensions: Occupies only 4 modules on the DIN rail, making it easy to mount even in tight switchboards.

Thanks to these features, the ETITEC C T2 limiter is a reliable solution for ensuring the safety and continuity of operation of the electrical installation for both professional installers and end users. It provides protection against costly equipment failures and downtime.