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 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 events destroy CCTV systems in two ways: a direct hit burns out cameras and NVRs instantly, while repeated low-level
The choice between 4+0 and 3+1 configuration in a three-phase SPD is not a preference — it is determined by
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 Surge Protective Device (SPD), also known as a surge suppressor, is a device designed to limit transient overvoltages and
Don’t confuse SPD with UPS! Learn the critical differences between Surge Protection Devices and Uninterruptible Power Supplies to keep your equipment safe.
Surge Protective Devices (SPD) is a critical safety component that protects valuable electronics from transient overvoltages by diverting damaging surge currents.
