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Circuit Breaker & Fuse Sizer

General continuous/non-continuous load OCPD sizing (NEC 210.19/215.2 + 240.4, or IEC 60364-4-43 Ib≀In≀Iz), or motor starting-current withstand sizing (NEC 430.52(C)(1) percentage method, cross-checked against the standalone Motor Calculator). Fully free β€” no subscriber gate.

AAJappsEngineering Calculation Report

Circuit Breaker & Fuse Sizer

NEC 210.19/215.2/240.4/430.52, IEC 60364-4-43

Generated

For preliminary engineering use only β€” always verify results against project-specific standards and a qualified engineer's review before use in a real design.

Basis

Continuous / non-continuous load

A
A
A

General load OCPD

Minimum OCPD (125%Γ—cont. + 100%Γ—non-cont.)120.0 A
Recommended Standard Size125 A
Conductor Protection (240.4)β€” βœ“