DIN EN 3662-006-2008 航空航天系列.额定电流为20A~50A的温度补偿式三极断路器.主线.产品标准
Aerospace series - Circuit breakers, three-pole, temperature compensated, rated current 20 A to 50 A - Part 006: With polarized signal contact - Bus-bar version - Product standard; German and English version EN 3662-006:2006
This standard specifies the characteristics of three-pole circuit breakers, temperature compensated with a rated current from 20 A to 50 A, used in aircraft on-board circuits at a temperature between 55 ℃ and 90 ℃ and at an altitude of 15 000 m max.
These circud breakers are operated by a push-pull type single push button (actuator),with delayed action "trip-free" tripping with a polarized signal contact which is open when main contacts are closed. and inversely
They are connected on supply side by means of bus-bar. They will continue to function up to the short-circuit current