Description
Ground Your Body More Safely

Grounding (also known as earthing) is great; it’s a super important tool in your EMF protection arsenal.
But there are hazards in grounding– hazards that stem from your electrical wiring and the power grid. These include contact current, dirty electricity, and electrical field EMF.
Whenever you touch a grounding product, you’re exposing your body to these harmful forces.
And that’s why we created the NCB Pro.
The NCB Pro makes it safer to ground your body by eliminating these harmful forces from your home grounding conductor.
What Experts Are Saying About the NCB Pro






Introducing the NCB Pro
For Consumers
For Experts
Which Version is Right for Me?
- Volate: 120V
- Guage:
- 12 AWG: Almost everything that is fed from breakers inside home panel.
- 10 AWG: Exceptions including: well pump, HVAC furnace, solar sub-panels.
- If in doubt, select the 120V 10 AWG for applications with the breaker panel.
- Select: 240V 10 AWG
Version Name | Name | Electrical Name Plate Info: Voltage, Current, Wire Size | Intended Use/Description | GDT Activation Level |
---|---|---|---|---|
120V 12 AWG | Wired, 120V, 20A EGC Filter | 120V, 15-20A, 12 AWG Stranded Copper | Stops “foreign” primary return current on equipment grounding conductors (rated up to 20A) yet provides effective ground-fault path to quickly trip breakers. | 60-75V |
120V 10 AWG | Wired 120/240V, 30A EGC Filter | 120/240V, 30A, 10 AWG Stranded Copper | Stops “foreign” primary return current on equipment grounding conductors (rated up to 30A) yet provides effective ground-fault path to quickly trip breakers. | 60-75V |
240V 12 AWG | Wired, No Circuit Breaker 20A, 240V+ Equipment Bond Filter | 240V+, 20A, 12 AWG Stranded Copper | This wired 12 AWG 240V NCB is for use on bonds between equipment to filter noise but not intended to trip breakers. The surges above 240V from lightning are allowed through to balance the energy to prevent an arc from jumping. | 240V |
240V 10 AWG | Wired, No Circuit Breaker 30A 240V+ Auxiliary Ground Filter | 240V+, 30A, 10 AWG Stranded Copper | This wired 10 AWG NCB Pro is for use on secondary earth references (not the main GEC), bonds and grounding conductors that do not have overcurrent protection, like phone line bonds, outside auxiliary grounding electrodes feeding shielding paint, etc. The surges above 240V from lightning are allowed through to prevent an arc between systems yet home based 120V faults are blocked from accessing the earth to keep them focused on the in-home breaker, not through earth. 250.4(A)(5) | 240V |
Real Science
In order to address the electrical hazards from grounding, we want to stop current on the grounding conductors– before they enter the home. That’s the foreign current, like through a well pump, as we see in this diagram.
The NCB Pro also addresses local or in home current sources from appliances.
The NCB Pro is placed in the grounding conductor. There’s a resistor in there, and it strips the dirty electricity, and stops the current and magnetic field, from your grounding conductor.
And – VITALLY– the NCB maintains an effective “ground-fault path.” You may not know what that means, but it’s really important. Because, if for some horrible reason an electrical cord is cut or something else goes wrong, and your grounding mat gets electrified, the NCB Pro activates and sends that current back to trip the breaker immediately– protecting you.


Works With Any Product You Use to Ground Your Body
Because the NCB Pro is designed to be attached to the grounding conductor, the NCB Pro works to protect any product you use to ground or earth your body that is connected to that circuit. That includes:
- Grounding Mats
- Grounding Sheets
- EMF Canopies
- & More!
Requires Professional Installation
Because of its nature, the NCB Pro requires installation by a professional. This could be a certified Building Biologist or a licensed electrician.
If the expert with whom you are working is unfamiliar with the NCB, that’s why we offer:
- 30 minute consulting session with the inventor ($198 value) – included in your purchase, at no additional charge.
- An extensive library of training materials, created by the inventor.


Invented by Andrew McAfee
Andrew McAfee is an EMF consultant based in Raleigh, North Carolina.
Andrew and his wife discovered they were EMF sensitive after moving into a new home in 2000. They started getting sick. Really, really sick. And they couldn’t figure out why.
After some investigation, Andrew and his wife discovered that his wonderful new home was filled with massive wiring problems. All of this was in an electrical system that had passed all code inspections.
So Andrew started learning all he could about EMF and electrical wiring. In 2017, he became a full-time EMF consultant. And in 2019, he earned a career diploma in residential electricity.
He started helping clients improve their lives, and their health, by improving their homes, by addressing all the problems he was finding in their electrical wiring systems.
He invented the NCB out of necessity– to help his clients ground their EMF protection products more safely.
Other Benefits

Unique
The NCB Pro is the only solution available anywhere in the world that performs all of these essential functions for improved health and reduced EMF exposure from the equipment grounding conductors in your home.

Works Internationally
The NCB Pro will work anywhere in the world.

Quality
Precision engineered and quality-tested.

Flexible
Works with any product you use to ground or earth your body. That includes grounding mats, grounding sheets, EMF canopies– & more!