MeanWell NES-350-12 Power Supply Cover

The power supply that came with my printer burned out. Probably due to the fact that it was borderline (15A) in the first place, and then I upgraded to an E3Dv6 hotend. I purchased a replacement with a bit more power (30A). This was the MeanWell NES-350 12V (https://www.amazon.com/gp/product/B007K2H0GI/ref=oh_aui_detailpage_o06_s01?ie=UTF8&psc=1). I had a power cord receptacle and switch on my previous supply (https://www.amazon.com/gp/product/B00511QVVK/ref=oh_aui_detailpage_o03_s00?ie=UTF8