Replacement Indramat Spindle drive KDA maho 1600

hello, i have a machine equiped with a indramat kda


now i have 2 replacements for this but im not sure if they wil fit,


the original drive (for maho cnc milling machine) is:


KDA-3.2-150-3-AOS-W1


The 2 spares i have are:


KDA-3.3-150-3-A00-W1


and


KDA-.32-150-3-A00-W1




so they schould be the same to use, because the only difference i have is the AOO and AOS but is
S here stands for serial interface RS232 but this one is not used on the original machine so thats nog a problem,
and i could instal the optional card if neccesairy on the AOO i suppose,


but what i seen is that the power main pcb board original is a TTS3 and the 2 replacements are TTS18


whats the difference?


they both should can handle 150Amp and 300V dv bus voltage?


can i use it to?