What Is a Subpanel?

Breaker BootCamp Study Guide

A subpanel distributes power from service equipment to downstream circuits.

It is not service equipment.

What It Does

A subpanel extends circuit capacity and shortens branch-circuit runs while being fed from an upstream breaker.

Where It’s Used

• Garages

• Additions

• Workshops

• Detached structures

One Critical Rule

Neutrals must be isolated.

Grounds are bonded to the enclosure.

Neutral-to-ground bonding is allowed only at the service disconnect.

Why Breaker BootCamp Teaches This

The Breaker BootCamp Study Guide teaches grounding and bonding logic early so the Breaker BootCamp course avoids parallel current paths, shock hazards, and failed inspections.

About Breaker BootCamp

Breaker BootCamp is an electrical training program and electrician boot camp designed to prepare beginners, helpers, and apprentices for real-world electrical work, job readiness, and long-term careers in the electrical trade. The program emphasizes discipline, mindset, and hands-on electrical training aligned with how the trades actually operate.

Learn more at https://www.breakerbootcamp.com/