UNE EN 4839-003:2018
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 (Endorsed by Asociación Española de Normalización in November of 2018.)
Material aeroespacial. Interruptores automáticos con detección de arco, tripolar, compensados por temperatura, corriente nominal de 3 A a 25 A - 115 V c.a. Frecuencia constante de 400 Hz. Parte 003: Sin contactos auxiliares. Norma de producto. (Ratificada por la Asociación Española de Normalización en noviembre de 2018.)
| Standard number: | UNE EN 4839-003:2018 |
| Pages: | 14 |
| Released: | 2018-11-01 |
| Status: | Standard |
UNE EN 4839-003:2018
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 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.