Finding the right wire gauge and amperage is essential when installing, extending, or rewiring a circuit. The wire gauge, or thickness, must match the circuit’s amperage rating to safely handle the ...

In this episode of “EC&M Tech Talk,” Randy Barnett, a journeyman electrician, electrical instructor, inspector, author, trainer, and electrical safety expert discusses the ampacity level of conductors ...

Des Moines, Iowa – [September 30, 2025] – Ampacity LLC today announced that its new 300,000-square-foot distribution facility in Des Moines, Iowa, is fully operational. The new warehouse represents ...

The term “ampacity” is used hundreds of times throughout the Code and is defined in Art. 100 as “the maximum current, in amperes, that a conductor can carry ...

Many DIY enthusiasts have to contend with electrical wiring eventually in some capacity. The descent into this rabbit hole often begins with the fundamental question: What exactly is a wire gauge, and ...

There are two main considerations for sizing DC wiring from the output of a power supply to its load. They are ampacity (fancy term for the number of Amps) and voltage-drop (remember ohms law: V = I x ...

Whether you're installing, extending, or rewiring a circuit, finding out the wire gauge and amperage you will need is a key first step. The gauge—or size—of the wire used needs to match the circuit's ...