High voltage DC circuit breakers

HI

I wondered if anyone knows of any very high voltage DC circuit breakers? I could only find midnite solar circuit breakers up to 600V. It's for a grid-tie 800V DC system.

Maybe it's not necessary to put them in and just go straight to the inverter? http://www.aros-solar.com/en/inverter/solar-inverter-singlephase-sirio-evo-3000

Thanks
Larry

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