North American home service panel single line diagram
This residential electrical single line diagram shows a North American 120/240 V home service panel. The utility service enters a 200 A meter socket and main service disconnect before reaching the main panel. The panel supplies 240 V range and dryer circuits alongside 120 V kitchen, bedroom, and garage circuits.
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Scenario
This diagram represents a typical 120/240 V North American dwelling service, from the utility meter to a main panel serving appliance and protected branch circuits.
Key decisions
- 200 A service: Meter socket and service disconnect establish the dwelling’s main rating.
- Two-pole appliances: The range and dryer use 240 V branch breakers.
- GFCI locations: Kitchen and garage receptacles have ground-fault protection.
- AFCI branch: Bedroom lighting is shown on an arc-fault-protected circuit.
- Conductor labels: Branch conductor sizes are visible at each load.
When to reuse this
Use this for a conventional detached home under North American practice. Local code determines the final AFCI, GFCI, service, and conductor requirements.
Frequently asked questions
Why are range and dryer breakers two-pole?
What is the difference between GFCI and AFCI?
Is this a permit-ready panel schedule?
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