What is BS EN 4838-005 - Arc fault circuit breakers about ?
BS EN 4838-005 is a European standard that 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 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.
Who is BS EN 4838-005 - Arc fault circuit breakers for ?
BS EN 4838-005 on arc fault circuit breakers is applicable for:
- Aerospace avionic electrical and fibre optic technology
- Manufacturers of circuit breakers
- Aerospace and defence industries
- Designers of circuit breakers
- Aircraft electrical manufacturers
- Design engineers for airplanes
Why should you use BS EN 4838-005 - Arc fault circuit breakers ?
Arc fault circuit breakers protect the branch circuit wiring from dangerous arcing faults that could initiate an electrical fire.
BS EN 4838-005 provides best practice guidance on the panel mounting, mass, material, surface treatment, and arc fault performance.
BS EN 4838-005 also provides you with dimensional, mechanical, electrical, & environmental characteristics of arc fault circuit breakers. By using these guidelines, you can make the best quality circuit breakers that support aircraft systems.