The ability to withstand extreme temperatures is vital for aerospace components, including electrical fittings. The BS EN 3661 series discusses single-pole, temperature compensated circuit breakers for aerospace applications. BS EN 3661-005 is a European Standard that discusses the characteristics of polarized signal contact circuit breakers for aerospace applications.
BS EN 3661-005 is part five of BS EN 3661-005 and specifies the characteristics of single-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 °C and 125 °C and at an altitude of 15 000 m max. These circuit 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 will continue to function up to the short-circuit current.
BS EN 3661-005 on polarized signal contact circuit breakers is useful for:
Aerospace components need to meet the highest quality standards to endure the extreme conditions that they are subjected to. BS EN 3661-005 provides you with details such as dimension, mass, characteristics, designation and rated current code. BS EN 3661-005 also guides you with delivery codes, marking and technical specifications along with detailed diagrams and tables.
Using BS EN 3661-005 guidelines contributes to simple operation, short installation time and low power consumption for aerospace applications. BS EN 3661-005 guidelines help you to design and manufacture or source high-quality cables that can withstand a variety of temperatures and are long-lasting.
BS EN 3661-005 ensures the reliability of the aerospace equipment. This contributes to the safety of those on board.EN 3661-005:2006