Need to know if the power part with IP54 degree of protection (where is placed the heatsink), of Altivar 71 and 31 is proof (resistant) against the following chimical compound: NPK 8/24/24 - PK 9x36 - UREA 46% N - H8 N2 O4S - PK 14x24 - PK 20x20 - Mg SO4 7 H2O - KC1 60% K2O - K2 SO4 50% K2O - (NH4) 2 HPO4 - NH4 H2 PO4 - Ca (H2 PO4) 2 and "ammonium nitrate" with a percetage of nitrogen. I apologize for the "strange" question but I kindly ask you help for to give an answer to our customer. Please take care of this request ASAP because is very urgent (our PAE should give an answer for tomorrow).
Attached is a document with the protection again gas for our drive. The standard IEC721-3-3 is taken as a reference.