Service entrance sizing from your actual loads
The service entrance isn't an isolated calculation — it depends on everything downstream. ekx sizes your main breaker, service conductors, and grounding based on the actual loads in your model.
What you get
Service overcurrent protection sized based on total calculated demand from your model.
Service entrance conductors sized per NEC 230 with proper ampacity and derating.
GEC sizing per NEC 250.66 based on the size of the service entrance conductors.
Sizing uses the actual calculated load from your model, not a manual estimate.
Fault current at the service entrance calculated from utility source data.
Main breaker interrupting capacity checked against available fault current automatically.
Service entrance sizing connected to your design
Instead of manually totaling loads and looking up conductor sizes, ekx calculates the service entrance requirements directly from the loads you've already placed in your model.
- Total demand calculated from all loads in the model
- Main breaker and service conductors sized accordingly
- Available fault current determined from the utility source
- Main breaker AIC checked against available fault current
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View All PlansFrequently asked questions
ekx sums the connected loads in your model applying standard demand factors. The calculated demand drives service entrance sizing.
Yes. GEC sizing follows NEC 250.66, determined by the size of the largest service entrance conductor.
You can model multiple service entrance points in your one-line diagram. Each is sized independently based on its downstream loads.
Yes. The available fault current at the service entrance is calculated from utility data, and the main breaker's interrupting capacity is checked against it.
Size your service entrance from actual loads.
Main breaker, service conductors, GEC — all from the model.
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