Shielding cups are a special type of shaped part. Traditionally, shielding cups were deep-drawn parts; i.e. they were manufactured in a deep-drawing process. These deep-drawn cups were used for transformers (50 to 400 Hz) with M sheets and SM tape-wound cores.
TWO TYPE SERIES ARE DEFINED:
- The RB series (RB = round cup) for M sheets of M 20 to M 55
- SM tape-wound cores from SM 30 to SM 55 and QB series (QB= cuboid cup) for M sheets from M 20 to M 102 and SM tape-wound cores from SM 30 to SM 102b
Nowadays, shielding cups are customised designs.