Scope

This standard specifies the three-pole temperature compensated circuit breakers with signal contacts, polarized or not, rated from 20 A to 50 A and used in aircraft on-board circuits. It describes specific environmental, electrical and mechanical characteristics and the stringency of tests to be applied according to test methods of EN 3841-100. These circuit breakers are intended for use in aircraft with electrical supplies in accordance with EN 2282 (all categories).

Abstract

The "Aerospace Series" standard ASD-STAN prEN 3662-001:2024 specifies three-pole temperature-compensated circuit breakers with rated currents from 20 A to 50 A for aircraft onboard circuits. This standard supersedes the previous edition and outlines specific environmental, electrical, and mechanical characteristics along with stringent testing methods. The document, published by ASD-STAN for the European Aerospace Industry, ensures interchangeability without affecting functionality. It details materials, design elements, cha...