Compute connected and demand loads for dwelling units, multifamily buildings, commercial occupancies, and feeders per NEC 2026.
Calculation Method
220.12, 220.14
220.52
Minimum 2 small-appliance circuits at 1,500 VA each (220.52(A)) and 1 laundry circuit at 1,500 VA (220.52(B)).
220.53
220.55 / Table 220.55
Note 4: Single range ≤ 8¾ kW → 8 kW demand.
Note 2: Range > 8¾ kW to ≤ 12 kW → Col C at 12 kW. Unequal ratings > 8¾ kW through 27 kW → average rating (12 kW floor per range) bumps Col C.
Note 1: Ranges all the same rating, > 12 kW → add 5% per kW over 12 kW.
220.54 / Table 220.54
220.60
Add each heating and/or cooling unit's connected load. Noncoincident rule (§220.60) uses the larger of the two totals — both are not added together.
120.57
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