Protection Class

Electrical equipment must have protection against electric shock in the event of a fault. In this respect, they are classified in protection classes in DIN EN 61140:2016-11 (VDE 0140-1). Usually, transformers from our production are intended for installation in devices or systems. Therefore, they do not have a protection class themselves, but are prepared for devices of protection class I or II.

• Transformers prepared for protection class I devices have a protective earth connection. This is connected to the touchable conductive parts and is intended for the fixed wiring of the installation. In addition, these transformers have at least basic insulation.
• Transformers prepared for protection class II devices do not have a protective earth connection. Double or reinforced insulation serves as an additional safety precaution here.
• Protection class III refers to equipment in which protection against electric shock is based on the safety extra-low voltage (SELV) or protective extra-low voltage (PELV) supply and in which no voltages higher than SELV are generated.