Electrical

Split-Phase 120V/240V Residential Panel

Electrical Diagrams · made in Skemio

Split-phase electrical diagram showing Center-Tapped Transformer feeding Line 1, Neutral, and Line 2 into a panel feeding 120V and 240V branch loads.
Split-phase electrical diagram showing Center-Tapped Transformer feeding Line 1, Neutral, and Line 2 into a panel feeding 120V and 240V branch loads.
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What it shows

  • A single-phase 240V secondary with a center tap creates two 120V legs 180° apart
  • Neutral carries only the imbalance current between Leg 1 and Leg 2
  • Two-pole breakers bridge both hot bus stabs to power heavy 240V loads

The takeaway

Split-phase power supplies low-voltage wall outlets and high-power appliances from one center-tapped transformer.

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