DIN EN 4839-003:2019 pdf free.Aerospace series -Arc Fault Circuit breakers, three-pole, temperature compensated, rated currents 3 A to 25 A,115/200 V a.c. 400 Hz constant frequency -Part 003: Without auxiliary contacts – Product standard;German and English version EN 4839-003:2018
1 Scope This European Standard specifies the required characteristics for three-pole, arc fault circuit breakers,rated currents from 3 A to 25 A, switching capacity 65 In, for use in aircraft electrical systems. Their operating temperatures are between – 40 °C to 85。C at a maximum altitude ofZ= 15 000 m. The thermal protection is temperature compensated and operates between – 55 °C and 125 °C. These arc fault circuit breakers are operated by a push-pull type single pushbutton (actuator), with delayed action “trip-free” tripping. They will continue to function up to the short-circuit current. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 3841-100, Aerospace series一Circuit breakers一Test Methods一Part 100: General EN 3841-305, Aerospace series – Circuit breakers – Test Methods – Part 305: Short-circuit performance EN 4839-001, Aerospace series一Arc fault circuit breakers, three-pole, temperature compensated, rated current from 3A to 25 A, 115 V a.c.400 Hz constant frequency一Part 001: Technical specification EN 6113, Aerospace series一Circuit breaker, connecting and attachment hardware TR 6083, Aerospace series – – – Cut-outs for installation of electrical components 1) FED-STD-595B, Colours used in Government Procurement 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3841-100 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/ /www.electropedia.org/ ISO Online browsing platform: available at  http://www.iso.org/obp DIN EN 4839-003 pdf download.