Surge Protection & Power Quality

How to Size Your SPD kA Rating: The “Gatekeeper” Strategy (Main vs. Branch)

What Is an Over & Under Voltage Protector? (And Why Your Circuit Breaker Can’t Save You) 

Why Did My SPD Fail But My Breaker Didn’t Trip? (A VIOX Engineer Explains)

Why Your MOV Surge Protector Isn’t Working (The Invisible Resistor)

Why Your Panel-Mount Surge Protector Might Be Useless: The Earth Ground Problem Nobody Explains

Stop Wasting Money on Surge Protection: The Engineer’s Guide to Specifying SPDs That Actually Work

Why Your $50,000 VFD Failed During a Lightning Storm: The Engineer’s 6-Step Guide to Surge Protector Selection

Complete Guide to Sizing Whole-House Surge Protection for 200-Amp Homes

How Long Should a Surge Protector Last?

Voltage Protector vs. Surge Protector

Can I Connect a Surge Protector to an Existing Breaker?

Surge Protection Devices Selection Guide: 1P, 1+NPE, 3P, and 3+NPE