Surge Protection Device for Solar Panels: A Practical Selection Guide
Learn how to select the right surge protection device for solar panel systems — AC/DC placement, Type 1 vs Type 2, key IEC parameters explained.
2026 London Elexshow: A Record-Breaking Success for Thor Surge Protection
THor celebrates a monumental success at the 2026 London Elexshow. Discover our AC and solar SPDs that secured £150k in orders and 155 project leads at Alexandra Palace.
Metal Oxide Varistor (MOV): The Core Component of a Surge Protection Device
Explore how metal oxide varistors (MOVs) serve as the core of surge protection devices (SPDs), their working principles, applications in power and telecom, and why using certified MOVs is critical for long-term safety and reliability.
Thor at ElexShow 2026: SPDs for Sustainable Energy
Thor is exhibiting at ElexShow London 2026. Discover our sustainable energy SPDs, meet our technical experts, and find the right surge protection for your projects. Click to learn more.
Surge Protection for CCTV and Surveillance Systems
Surge events destroy CCTV systems in two ways: a direct hit burns out cameras and NVRs instantly, while repeated low-level
What’s the Difference between 4+0 and 3+1 Configuration in SPDs
The choice between 4+0 and 3+1 configuration in a three-phase SPD is not a preference — it is determined by
Surge Protection Device vs. Surge Protector
This article outlines the key differences between surge protectors and SPDs, beginning with what each term actually refers to, and provides guidance on how to choose the right type of surge protection based on system demands and risk exposure.
A Technical Introduction to Voltage Limiting Surge Protective Devices (SPDs)
A Surge Protective Device (SPD), also known as a surge suppressor, is a device designed to limit transient overvoltages and