Surge protector without disconnector ETITEC A 440/5/FK-N 002442761

Overvoltage protection in electrical installations

The ETITEC A 440/5/FK-N surge arrester is a reliable element protecting electrical installations from the effects of sudden voltage increases. Designed to protect overhead lines, it works well in both home and industrial installations. Its construction based on varistor technology ensures a quick and effective response to surges, minimizing the risk of damage to connected devices.

Construction and application

This arrester, with a continuous operating voltage Uc of 440V, is classified as type A, which means its ability to react quickly to surges. It is intended for use in TN, TN-C and TN-S network systems. Its rated discharge current (8/20μs) is 5kA, and the short-circuit withstand current (Isccr) is 4kA – parameters guaranteeing effective protection against overloads and short circuits. Thanks to this, the ETITEC A series arresters constitute a solid barrier against interference from the atmosphere or the power grid.

Key features and benefits

• Varistor technology: ensures a quick response to surges and effective device protection.
• Operating voltage 440V: versatility of use in various electrical installations.
• Discharge current 5kA: high ability to dissipate energy during surges.
• Short-circuit withstand 4kA: resistance to damage in the event of short circuits in the installation.
• Protection class II / C: compliance with safety standards and efficient operation.
• Optical indication of operation: informs about the need to replace the arrester after a surge.
• Direct mounting: simplifies and speeds up installation.
• Light weight (0.25 kg): facilitates transport and installation, especially during work at heights or in hard-to-reach places.
• Application in TN, TN-C and TN-S systems: wide compatibility with various electrical network configurations.

The ETITEC A 440/5/FK-N arrester is an investment in the safety and reliability of the electrical installation, protecting valuable devices from damage caused by surges.