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sqenixs avatar image
sqenixs asked

Do I need to protect the smartsolar from lightning strikes?

I see some people have circuit breakers installed between the panel and the mppt. Is that what I need or is this unnecessary?

MPPT SmartSolar
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Alexandra avatar image Alexandra ♦ commented ·

This depends on the set up, how big is the array? There are fused breakers you can buy and surge arrestors as well. Are there lightning rods on your home or nearby? What are local laws for solar installation.

Look up pv combiner boxes for an idea of what people use.

For the most part of you are grid tied in a place with overhead power lines, you are more likely to have a strike through those.

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marekp avatar image
marekp answered ·

If this is permanent installation, you should have over voltage and over current protections.

Over current protection is done by fuse or breaker.

Over voltage by:

https://citel.fr/en/photovoltaic/type-1-pv-surge-protector/ds50pv-1000g12kt1

or something similar.


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sqenixs avatar image sqenixs commented ·

This is only for 100W solar panel on my car.

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marekp avatar image marekp sqenixs commented ·

I that case, you do not need surge protector because your car is isolated from the ground.

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