Eaton NEC 2020 Code Changes Reference Guide

About this manual

This document details the significant changes to the 2020 National Electrical Code (NEC) for residential and commercial electrical installations. It covers updates to Arc-Fault Circuit-Interrupter (AFCI) and Ground-Fault Circuit-Interrupter (GFCI) requirements based on dwelling unit area and specific locations, as well as changes to terminal connection torque specifications.

The guide provides a reference chart comparing AFCI and GFCI requirements across different room types and appliances for various NEC editions, culminating in the 2020 updates. It also explains the rationale behind the new terminal torque rules and lists specific Eaton circuit breakers and wiring devices designed to aid in compliant installation and inspection processes.

What's inside

• National Electrical Code Introduction
• Dwelling Unit Area Reference Chart
• Terminal Connection Torque
• Ground-Fault Circuit-Interrupter Protection
• Arc-Fault Circuit-Interrupter Protection
• Surge Protection
• Receptacle Outlets
• Eaton Product Solutions

Frequently asked questions

What is the primary purpose of a Ground-Fault Circuit-Interrupter (GFCI)?

The purpose of a GFCI is for the protection of personnel from electrical shock.

When does a Class A ground-fault circuit-interrupter trip?

Class A ground-fault circuit-interrupters trip when the ground-fault current is 6 mA or higher.

What tool must be used to achieve indicated tightening torque values?

A calibrated torque tool shall be used to achieve the indicated torque value.