No, the NCB (both Plug and Pro) does not protect you from a direct lightning strike. Here’s what you need to know:

Lightning Safety and Grounding Products

• The NCB is designed to block low-level “nuisance currents” and reduce EMF exposure from dirty electricity—not high-voltage events like lightning.

• A lightning strike introduces millions of volts instantly—far beyond what the internal resistors or circuits of the NCB can handle.

• If you’re grounded via a sheet, mat, or bed canopy during a lightning storm, the current from a strike could travel through those connections, potentially causing harm.

SYB’s Official Guidance

“Do not use any grounding products—including those with the NCB—during lightning storms.”

Always disconnect your grounding setup from the outlet during thunderstorm activity to eliminate any risk of high-voltage surge.

What the NCB Does Protect Against

• Stray voltage from your home’s wiring

• Ground current pollution from nearby electrical systems

• Dirty electricity and contact current from plugged-in devices

But it is not a surge protector or lightning arrestor.

Final Safety Tip

If storms are forecasted:

• Unplug your grounding equipment entirely

• Do not rely on surge protectors—they are not designed for grounding circuit use