Lexicon DIY-Knowledge

Protection class I, II, III

Schutzklasse I, II, III

Clases de protección I, II, III

Classification des protections I, II, III

Technical definitions in accordance with the regulation EN 5144 are applied here.

Protection class I

Tools belonging to this class contain one or more parts which are equipped with basic safety insulation and which need to be earthed in certain cases.

Protection class II

Tools in protection class II are completely insulated by a special insulation. They do not require earthing.

Protection class III

Tools belonging to protection class III are intended for connection to a LV (low voltage) supply network.

(See also Electrical safety)