DS EN 3774-001:1999 Aerospace Series - Circuit Breakers, Three-Pole, Temperature Compensated, Rated Currents 2A To 25A, Switching Capacity 65 In - Part 001: Technical Specification Defines the required characteristics for three-pole, temperature compensated circuit breakers, rated currents from 2A to 25A, switching capacity 65 In, for use in aircraft electrical systems.