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si-thacker avatar image
si-thacker asked

Quattro II 48v 5000 output capacity passthrough + inverter = 100a/100a?

I'm setting up a battery backup system for my house with a passthrough for the mains A/C. I am wondering if the combined total mains passthrough+inverter output of the Quattro II 48v 5k can be ~10kw 100a/100a (50a/50a from mains A/C and 50a/50a from the inverter), or if the total combined output is limited to 50a/50a. I've been told that it can merge and do 100a/100a output, but looking at the output terminals they don't look sized for 2awg which would be needed to carry 100a.
Can anyone advise?

Thank you.

MultiPlus Quattro Inverter Charger
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2 Answers
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

Max output is the transfer switch capacity (100A) + inverter power (4000W -> 17A at 230V) = 117A

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si-thacker avatar image si-thacker commented ·

@Matthias Lange - DE Thank you for responding. Where is the transfer switch capacity listed as 100a?

If the total output capacity is 117a, why are the terminals sized for max 4awg? Full capacity would require 2awg.

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Matthias Lange - DE avatar image Matthias Lange - DE ♦ si-thacker commented ·

It's in the datasheet.

https://www.victronenergy.com/upload/documents/Datasheet-Quattro-3kVA-15kVA-EN.pdf

The 5kVA Quattro should have M6 bolts for the AC connections.

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si-thacker avatar image si-thacker Matthias Lange - DE ♦ commented ·
That's the data sheet for the Quattro. The Quattro II data sheet doesn't mention these numbers.
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Matthias Lange - DE avatar image Matthias Lange - DE ♦ si-thacker commented ·

The Quattro-II has a 50A transfer switch

1666250537640.png

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1666250537640.png (96.5 KiB)
si-thacker avatar image si-thacker Matthias Lange - DE ♦ commented ·
So does this mean that the Quattro II cannot do > 50 amps total combined output capacity?
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Matthias Lange - DE avatar image Matthias Lange - DE ♦ si-thacker commented ·
Like above:

transfer switch capacity + inverter power


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si-thacker avatar image
si-thacker answered ·

@Matthias Lange - DE Thank you for responding. Where is the documentation showing the transfer switch rated as 100a/100a? I haven't seen these numbers anywhere.

Also, why would the terminals be sized for 4awg wire when 100a requires 2awg?

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