DC circuit breakers rated >63A?

[stube40]

Anyone know of anywhere I might get hold of a DC circuit breaker rated higher than 63A? We are currently using the Teresaki 4500 series C63 but want to go higher.

Yes, I know it's a high current but those of you who know me will know why!!!

 

[Orson Cart]

It's fairly common to use a 400V 3 phase AC breaker (all 3 wired in series) to break DC up to about 110VDC, AC 3 phase breakers can be obtained in 80A, 100A,120A, 150A.
Regards, Orson Cart.

 

[stube40]

Many thanks for that Orson

 

[kak111]

If 3 Phase AC-breaker is used for DC.
It is recommended that the middle breaker has no connection
for higher security against electric arc between inner parts.

https://www2.schneider-electric.com...-catalogue/abted205160en/EN/pdfs/page_021.pdf

Regards KAK