... is over 18V, module automatically shut down and lock output, restart and return to work.Output current(A)0- ... output overvoltage protection, overheat protection, short circuit protection and so on, after removing malfunction, return to work automatically ... wayNatural cool, no fanProtection classIP66Insulation resistanceFull insulate input and output part, insulation resistance>20MΩStart delay time(S)3 ...