Blogs

Most SPD datasheets lead with the biggest number on the page, and for a Type 2 device that number is […]

Verify a surge protection device certificate against its model, ratings, test report and issuing database before placing an order.

How a lightning protection system works end to end: IEC 62305 zones, air terminals, earthing, and the SPDs that limit surges reaching your equipment.

How does a lightning conductor work? Follow the current from the rooftop air terminal through bonding and down conductors to earth.

Solar DC SPD connection diagram done right: parallel PV+/PV- to earth, U-type vs Y-type, where to install it, and the lead-length rule that matters.

Choose industrial surge protection by voltage, SPD type, installation point and surge rating, with IEC 61643-11 product examples.

SPD coordination explained from IEC 61643-12: what the 10-meter rule really means, how to match Up across stages, and when Type 1+2 SPD solves it.

A lost neutral can push up to 400 V across your SPD. A temporary overvoltage is what it was never built to stop — how to make yours fail safely.