Letectví a kosmonautika - Jističe proti závadám oblouku, jednopólové, tepelně kompenzované, jmenovitý proud 3 A až 25 A - Střídavé napětí 115 V při konstantní frekvenci 400 Hz - Část 004: Se signálním kontaktem - Norma výrobku (Norma k přímému použití jako ČSN).

The information about the standard:

Designation standards: ČSN EN 4838-004
Classification mark: 311757
Catalog number: 506103
Publication date standards: 1.2.2019
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN

Annotation of standard text ČSN EN 4838-004 (311757):

This European Standard specifies the required characteristics for single-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 of Z = 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