C means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. C Siemens WI12W327ES, Frontlader, 8 kg, B, 66 dB, 1200 RPM, C Siemens WI12W327ES. Ladetyp: Frontlader. Nennkapazität: 8 kg, Schleuder-Klasse: B, Luftschallemission (Schleudern): 66 dB, Maximale Schleuderdrehzahl: 1200 RPM. Breite: 555 mm, Tiefe: 596 mm, Höhe: 818 mm. Energieeffizienzklasse: C