Electrical Accessories – Circuit-Breakers for Over current Protection for Household and Similar Installations

رقم المستند: NL 47 : 1999
القطاع: Electrical Engineering
TC: NL TC IRI
ICS: 29.120.50
Applies to a.c. air-break circuit-breakers for operation at 50Hz, 60Hz, or 50/60Hz, with a rated voltage not exceeding 440V (between phases), a rated current not exceeding 125A and a rated short-circuit capacity not exceeding 25,000A. They are intended for the protection against overcurrents of wiring installations of buildings and similar applications; they are designed for use by uninstructed people and for not being maintained.