Further more to your 6 panels putting out 240 Volts,,how many amps do you get from those panels, If I could get that kind of power, I would put six of them on my house????
240Volts @ 6Amps = 1440Watts.
The output of an MPPT controller connected to that array would be ~14Volts @ ~100Amps.
You would need a very large battery bank to store that energy.
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since it's basically a 24V panel, with a PWM controller, you'll only get the current you would get from a 120W panel. To be effective it needs a MPPT controller.
My PWM controller on my portable panel will take 40V it is designed to detect 12V or 24V battery and then set the output voltage. Course it needs a 35+V panel for a 24V battery. But a 24V panel on a 12V PWM system doesn't really make sense, wasting lots of power. Newer PWM controllers seem to be designed to autodetect and work on either a 12V or 24V battery system.