Added a link to TradeTools — the one-app version of this calculator and 61 more, for HVAC, electrical, plumbing, fire protection, solar and carpentry. Nothing else changed.
Only the current version so far — new entries appear as the app ships updates.
Transformer NEC 450 Calculator is a tools app by Rizvan Adzhoyan with 100+ downloads (about 341 estimated). +6 installs in the last 7 days. Released Mar 8, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “NEC 450 transformer OCPD calculator. kVA to conductor sizing. Offline.”
