STAINLESS STEEL This case is made of 0. 8mm thick 304 stainless steel, which is precisely cut and welded, making it more durable than traditional ABS junction boxes and cold rolled steel. 4404, AISI 316L) and are extremely robust: High-quality seal materials make them suitable for an extended temperature range, while a circumferential protection channel prevents. current(Icw)upto150kAandaMax-imum rated current up to 6300A. The solution is also provided of an ant seismic certification, thanks to a shock level test up to 0. Choose from our selection of stainless steel boxes, including corrosion-resistant washdown enclosures, compartmented boxes, and more.