How to Wire an Electrical Panel - Square D - YouTube Click to view on Bing9:40Warning: Electricity can be dangerous! This video is intended for entertainment purposes only. Consult a licensed electrician if you are uncertain about any aspect of your electrical project.Author: Battle of the ToolsViews: 2 How to Wire a Square D Panel | Hunker Only Square D style circuit breakers fit in a Square D style panel box. Square D circuit breakers and panels use a square with a capitol D inside as an identification marker. Three wires enter a residential Square D service panel from the electric meter; two 120-volt hot Square D 100 Amp Panel Wiring Diagram Collection | Wiring Square D 100 Amp Panel Wiring Diagram Collection - 100 Amp Sub Panel Wiring Diagram New Great Square D with Subpanel. 40 Sub Panel Wiring Diagram Example Electrical Wiring Diagram •. 200 Amp Main Panel Wiring Diagram Electrical Panel Box Diagram. Square D Homeline 100 Amp 12 Space 24 Circuit Indoor Main Breaker.