EMC stands for the ability of an electrical device to function satisfactorily in its electromagnetic environment without unacceptably influencing its environment, which also includes other devices. Power supply units should comply with at least two basic EMC standards:
1. the standard for emitted interference (interference that the power supply unit emits or radiates in a conducted fashion) and
2. the standard for immunity (protection against external interference). These generic standards comprise a large number of other sub-standards, each of which defines limit values for sub-sectors (e.g. certain types of interference). FRIWO power supplies usually comply with these standards to a stricter degree than required because we believe that the EMC of our devices should be as good as possible in order to enable trouble-free operation.