domeashop Lightning arresters and surge protectors

Protect your electrical installations against power surges and lightning strikes with our selection of surge protectors. We offer modular and fixed solutions, compatible with domestic, commercial and industrial switchboards. Find class I, II and III devices, type 1+2 and type 2 surge protectors, DIN rail modules and surge protectors for sensitive equipment. Legrand, Hager, Eaton and ADEE electronic brands guarantee performance and compliance with standards (IEC/EN). Technical data sheets, installation tips and options for photovoltaic systems help you choose the optimum protection and limit the risk of electrical damage.
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Our experts answer your questions

The domeashop store offers you a list of questions and answers corresponding to the most frequently asked questions related to the theme and products in this category. If you can't find the answer you're looking for, contact us and our specialists will be happy to help.

A lightning arrester is a device that limits transient overvoltages caused by lightning or switching, by diverting energy to earth to protect equipment.

The term lightning arrester often covers protection against atmospheric overvoltages (classes I/II); surge protectors focus on protecting sensitive equipment against residual overvoltages (class II/III).

The surge arrester is generally installed at the head of the electrical panel (main box) or downstream near sensitive equipment, on a DIN rail or in a suitable enclosure.

Look for compliance with IEC 61643-11 (EN 61643-11) and class indications (I, II, III) to ensure adequate protection.

Choose according to the environment (lightning risk), the intensity of the expected lightning current (Iimp), the rated voltage and the sensitivity of the protected equipment.