Surge arrester without disconnector ETITEC A 280/5/EK-N 002442744

Surge protection for electrical installations

The ETITEC A 280/5/EK-N surge arrester is a protective component designed to protect electrical installations from the effects of current surges and overvoltages. It is a key element in ensuring the safety of devices and continuity of power supply, especially in areas prone to frequent voltage changes or lightning strikes. This device finds application in both residential buildings, as well as commercial and industrial facilities.

Construction and operation

The ETITEC A 280/5/EK-N surge arrester is characterized by a rated voltage of 230/400 V at a frequency of 50 Hz. Its construction is based on protection class II, which provides additional safety. The device is adapted to work with a continuous voltage (Uc) at 280 V AC. A key feature is its ability to withstand temporary overvoltage (TOV) – at 337 V for 5 seconds, no activation occurs, and at 440 V for 120 minutes, safe disconnection occurs.

Parameters and performance

This surge arrester stands out with its high efficiency in discharging surge energy. The maximum discharge current Imax (8/20µs) is as high as 280 kA, guaranteeing protection against even strong overvoltages. Additionally, the device can withstand a discharge current (10/350) Iimp of 5kA for a single pole. This makes ETITEC arresters reliable in protecting sensitive electronic devices from damage caused by sudden voltage spikes.

The rated voltage Un is 230 / 400 V (50 Hz), and the continuous operating voltage Uc is 280 V AC. The device has protection class II. The maximum discharge current Imax (8/20µs) reaches a value of 280 kA, and the rated discharge current (10/350) Iimp is 5kA for a single pole. The surge arrester withstands temporary overvoltage TOV UT (AC) without activation up to 337 V / 5s and ensures safe disconnection at 440 V / 120 min.

The ETITEC A 280/5/EK-N surge arrester is a solid solution for anyone who cares about the safety and reliability of their electrical installation. Its parameters provide effective protection against overvoltages, minimizing the risk of failures and costly repairs.