Data Center Electrical Calculator
Circuit Breaker Sizing Calculator
Calculate full load current and recommended breaker rating for general distribution and motor feeder circuits, with instantaneous trip range for common starting methods.
Design Inputs
Results
Full Load Current
122.76 A
Recommended Breaker (In)
125 A
Starting Current
736.54 A
Instantaneous Trip Range
884–1178 A
The breaker's breaking capacity (Icu) must also exceed the prospective short-circuit current at its location — use the Short-Circuit Calculator to check that separately.
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