1、 Introduction

The avionics control box is designed and produced by Shaanxi blue sea Electric Co., Ltd. for small civil aircraft, mainly used to provide line protection for the electrical equipment of the whole aircraft.

The design refers to the requirements specified in the relevant technical documents and standards of civil aviation to ensure the reliability, versatility and good electrical performance of avionics control box, as well as the adaptability in various environments during the installation and ground test.

2、 Main functions

The aircraft circuit breaker board is composed of front panel, light guide plate, circuit breaker, bus bar, diode, connecting socket, etc. As the power distribution center of the whole unit, the circuit breaker board is mainly used to provide line protection for the electrical equipment of the whole unit.

3、 Technical requirements

1. Power supply: ? normal 28vdc ? emergency 24VDC;

2. Type of circuit breaker: single-phase circuit breaker;

3. Rated current of circuit breaker: 1-20a;

4. Size requirements of circuit breaker: no more than 20mm (length) × 15.2mm (width);

5、 Working temperature: -40 ℃～ +60 ℃;

6. Storage temperature: - 40 ℃ ~ + 85 ℃;

7. Relative humidity: ≤ 95%;

8. Weight: ≤ 2kg;

9. Overall dimension: ≤ 370mm (length) × 110mm (width) × 100mm (height).