UNE EN 4838-004:2018
Aerospace series - Arc Fault Circuit breakers, single-pole, temperature compensated, rated current 3 A to 25 A - 115 V a.c. 400 Hz Constant Frequency - Part 004: With signal contact - Product standard (Endorsed by Asociación Española de Normalización in September of 2018.)
Material aeroespacial. Disyuntores unipolares, detección de arco, compensados en temperatura, corriente nominal 3 A a 25 A - 115 V a.c. 400 Hz frecuencia constante. Parte 004: Con contacto de señalización. Norma de producto (Ratificada por la Asociación Española de Normalización en septiembre de 2018.)
| Označení normy: | UNE EN 4838-004:2018 |
| Počet stran: | 14 |
| Vydáno: | 2018-09-01 |
| Status: | Norma |
UNE EN 4838-004:2018
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.