Blogs

Learn what a gas discharge tube is, how it works, and how GDTs are used in SPDs. Covers 2-electrode vs 3-electrode types and GDT vs MOV comparison.

Learn what the TN-C-S earthing system is, how it differs from TN-S and TT, and how to configure your SPD correctly for PME installations.

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.

Protect your outdoor Ethernet from lightning strikes. Discover why an IP68-rated RJ45 Surge Protection Device is essential for Gigabit and PoE networks.

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.

Surge events destroy CCTV systems in two ways: a direct hit burns out cameras and NVRs instantly, while repeated low-level transients degrade image sensors and storage drives over months until the system fails without warning. Either way, the fix is the same — surge protective devices (SPDs) installed at both ends of every cable run that connects outdoor cameras to indoor equipment. This guide covers the specific SPD requirements for IP