jonathan jewkes wrote:You could look at the "Emergency disconnect" switches made by Albright International. Should be able to handle 300A.
Indeed, thanks for the hint, according to their catalogue they seem to be OK for 250A but only at 150V.
Given my system will be 300V nominal and 150A max (after consulting with AZD I will set the circuit protection to 200A), is there anyway such a switch could handle that?