配电箱负荷计算器 — 公式
## Panel Load Calculation
Add all branch circuit loads in watts. Divide by the panel voltage to get total amperage. Compare against the panel main breaker rating. Standard residential panels are 100A, 150A, or 200A at 240V.
**Total Amps = Total Watts / Voltage**
Add all branch circuit loads in watts. Divide by the panel voltage to get total amperage. Compare against the panel main breaker rating. Standard residential panels are 100A, 150A, or 200A at 240V.
**Total Amps = Total Watts / Voltage**
计算示例
Typical home: 4800W lighting, 3000W kitchen, 1500W laundry, 5000W HVAC, 4500W water heater, 2000W other.
- Total = 4800 + 3000 + 1500 + 5000 + 4500 + 2000 = 20,800W
- Amps = 20,800 / 240 = 86.7A
- Minimum panel = 100A (round up to next standard)