BS EN 4838-005:2019 Aerospace Series Arc Fault Circuit Breakers

Introducing the BS EN 4838-005:2019, a pivotal standard in the aerospace industry, specifically designed for arc fault circuit breakers. This standard is essential for ensuring the safety and reliability of electrical systems in aerospace applications. With its comprehensive guidelines, it sets the benchmark for single-pole, temperature-compensated arc fault circuit breakers with a rated current ranging from 3 A to 25 A, operating at 115 V a.c. and 400 Hz constant frequency.

Key Features

• Standard Number: BS EN 4838-005:2019
• Pages: 16
• Release Date: July 17, 2019
• ISBN: 978 0 580 51481 4
• Status: Standard

Product Overview

The BS EN 4838-005:2019 standard is a critical document for professionals in the aerospace sector. It provides detailed specifications for arc fault circuit breakers, which are crucial components in preventing electrical fires and ensuring the safety of aircraft electrical systems. These circuit breakers are designed to detect and interrupt arc faults, which can occur due to damaged wiring or faulty connections, thereby preventing potential hazards.

This standard covers single-pole circuit breakers that are temperature compensated, ensuring consistent performance across a range of environmental conditions. The rated current capacity of 3 A to 25 A makes these circuit breakers versatile for various applications within the aerospace industry. Additionally, the 115 V a.c. and 400 Hz constant frequency specification aligns with the standard electrical systems used in aircraft, ensuring compatibility and reliability.

Technical Specifications

The BS EN 4838-005:2019 standard includes detailed technical specifications to guide manufacturers and engineers in the design and implementation of arc fault circuit breakers. These specifications ensure that the circuit breakers meet the rigorous demands of aerospace applications, providing reliable protection against electrical faults.

One of the standout features of this standard is the inclusion of a polarized signal contact. This feature enhances the functionality of the circuit breakers by providing a clear indication of the circuit status, which is crucial for maintenance and troubleshooting in complex aerospace systems.

Benefits of Compliance

Compliance with the BS EN 4838-005:2019 standard offers numerous benefits for aerospace manufacturers and operators. By adhering to this standard, companies can ensure that their electrical systems are equipped with the latest safety features, reducing the risk of electrical fires and enhancing overall system reliability.

Furthermore, compliance with this standard demonstrates a commitment to safety and quality, which can enhance a company's reputation and competitiveness in the aerospace market. It also facilitates international trade by ensuring that products meet recognized safety and performance standards.

Conclusion

The BS EN 4838-005:2019 standard is an indispensable resource for anyone involved in the design, manufacture, or maintenance of aerospace electrical systems. Its comprehensive guidelines ensure that arc fault circuit breakers are designed to the highest standards of safety and reliability, providing peace of mind for manufacturers and operators alike.

By incorporating the specifications outlined in this standard, aerospace companies can enhance the safety and performance of their electrical systems, ultimately contributing to the overall safety and efficiency of the aerospace industry.

BS EN 4838-005:2019

This standard BS EN 4838-005:2019 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 is classified in these ICS categories:

• 49.060 Aerospace electric equipment and systems

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 circuit breaker 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.