What Is a Main Lug Panel?

Breaker BootCamp Study Guide

A main lug panel is a panelboard without a main breaker.

It requires an upstream disconnect.

What It Does

A main lug panel distributes power to branch circuits but does not provide the primary means of disconnect.

Where It’s Used

• Subpanels

• Panels fed from a main breaker elsewhere

• Downstream distribution panels

One Critical Rule

A main lug panel cannot be used as service equipment unless a service disconnect is provided upstream.

Why Breaker BootCamp Teaches This

The Breaker BootCamp Study Guide teaches panel types and service layout early so the Breaker BootCamp course produces electricians who understand system architecture, not just breaker installation.

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/