EV Charger Wire Sizer
Level 2 EVSE Calculator with NEC 125% Continuous Load Rule
NEC Continuous Load Rule: Circuit breaker and wire must be sized at 125% of the charger’s max output.
Why EV Chargers Burn Up Standard Wiring
Installing a Level 2 EVSE is one of the most sustained electrical loads a residential panel will experience, pulling continuous max power for hours.
The 125% Continuous Load Rule (NEC 625)
Our calculator automatically applies the 1.25 multiplier required by code for continuous loads.
Parametric EV Cable Cleat (Heavy Duty)
Customize the exact diameter for your specific cable brand directly in your browser. Engineered for 3D printing in PETG.
