Our company is a producer of packaging machines which are equiped with electrical enclosure. The enclosure has two doors, which are opened using special key and has on it´s side wall main switch (attached picture). All electrical components fitted inside the enclosure have minimal protection IP20. My question is about machines produce from 2021. Do we need to have doors with disconnected means (doors are blocked while main switch is ON)? Will be this solution according NFPA79 also in accordance with UL508A?