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Voltatic calculator

Electrical load checker.

Check whether your sanctioned load can take a charger, the largest one that fits and when an upgrade is needed.

Your details

Adjust the inputs

Enter the sanctioned load from your electricity bill and roughly how much you use at the busiest time, then pick the charger you want.

Fine-tune assumptions 1
Your estimate

Here is the breakdown

VerdictFits, but tight7.4 kW fits the spare, but it uses the 20% you asked to keep free. 3.3 kW keeps that spare.
Largest that keeps 20% spare3.3 kW ACOn single phase, AC up to 7.4 kW
Spare load today9.0 kW75% of sanctioned load

What this calculation used

Supply: single
Sanctioned load: 12 kW
Highest use today: 3 kW
Charger: 7.4 kW
Margin kept free: 20%

A screening check only. It does not verify cabling, protection, earthing, phase balancing or DISCOM approval. Chargers above 7.4 kW usually need a three-phase supply. Have a qualified electrician assess the site.

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Use the result as a starting point.

Share your site details with Voltatic. Final product suitability and installation costs should be confirmed from the actual vehicle, datasheet and site conditions.

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