ROLEC: Compare Diecast Enclosures With Built-in EMC Shielding
Diecast aluminium enclosures are much better at dealing with radio frequency interference (RFI) and electromagnetic interference (EMI) than their plastic counterparts. Aluminium enclosures can provide some degree of inherent RFI/EMI shielding due to the conductive properties of the metal. But RFI/EMI can still affect the equipment. The shielding effectiveness of a metal enclosure depends on various factors.