AUWiring

EV charging calculators

Prepare EV charger load, circuit current, charging-time and maximum-demand contribution values for switchboard and DNSP review.

  • 4 calculators
  • Australian workflow
  • 230/400 V a.c. context

EV charging calculators project basis

Prepare EV charger load, circuit current, charging-time and maximum-demand contribution values for switchboard and DNSP review. These calculators support Australian design, estimating, installation and verification preparation. Keep the circuit, equipment, route, supply arrangement and source data with the result before it is used in a project record.

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Confirm the nominal 230/400 V a.c. or project-specific voltage basis, 50 Hz context where applicable, phase arrangement, metric units, manufacturer information, DNSP or authority conditions and current project documents before applying a result.

Check entered values, supply arrangement, cable or equipment data, product limits, DNSP or authority conditions and review limits before using the result.

Records covered

  • EV charger loadEstimate EV charger load contribution for planning. Inputs: Charger rating, phase arrangement, voltage and entered diversity assumptions. Output: Planning estimate requiring installer, switchboard and DNSP review.
  • EV charging timeEstimate session duration and supplied kWh from battery capacity, state-of-charge change and charger power. Inputs: Battery capacity, start SOC, target SOC, charger kW and charging efficiency. Output: Charging-duration worksheet for Australian EV planning, not installation load review.
  • EV charger circuit currentConvert EV charger kW into single-phase or three-phase current. Inputs: Charger kW, phase arrangement, voltage and power factor. Output: Current handoff for cable, protection, load and switchboard review.
  • EV maximum demand contributionEstimate EV charger group demand from charger count and an entered diversity factor. Inputs: Charger kW, charger count, diversity factor, phase, voltage and power factor. Output: EV contribution for a broader maximum-demand or supply-capacity worksheet.

Review before applying

EV charging calculator results are preparation records. Keep entered values beside current Australian requirements, DNSP or authority conditions, manufacturer information and project documents before applying a result.

Recheck the selected calculator whenever the supply arrangement, equipment data, route length, tariff basis, measurement method or project document set changes.

  • GuidesEV charger load planning notes.
  • Load and demandReview maximum-demand workflow context.
  • Cable sizingCarry EV circuit current into cable voltage-drop and sizing checks.