Circuit sizing
Continuous Load Circuit Capacity Calculator
Apply a continuous-load sizing factor to connected load and calculate the resulting circuit current.
Commercial load worksheet
Calculation inputs
VA
VA
V
Calculated result
18.33 A
Sizing load2,200 VA
Preliminary worksheetVerify adopted code tables, equipment schedules, phase assignments, and continuous-load definitions before design use.
Method and field check
The worksheet adds 125 percent of continuous load to noncontinuous load and converts the sizing VA to current. Confirm the applicable conductor, terminal, and overcurrent-device rules.