DIN EN 4839-001 : 2019 Title: Aerospace series - Arc fault circuit breakers, three-poles, temperature compensated, rated current 3 A to 25 A - 115 V a.c. 400 Hz constant frequency - Part 001: Technical specification; German and English version EN 4839-001:2018 Year: 2019 Publisher: DIN Media GmbH Availability: Within 1-2 working days