상황
A residential load center receives 120/240 V split-phase service through a 100 A main breaker and distributes power to lighting, kitchen appliance, and electric dryer branch circuits.
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01
Model split-phase service with two 120 V sources sharing a neutral/ground bus.
02
Use single-pole disconnect switches for 15 A and 20 A branch breakers and two-pole disconnects for the 30 A dryer circuit.
03
Represent the dryer as a 240 V heating element plus a 120 V motor/control load.
Reuse for any residential or light commercial panel wiring diagram where a main breaker feeds multiple branch circuits with mixed 120/240 V loads.