Defines the required characteristics for single-pole, temperature compensated circuit breakers, rated currents from 1A to 25A, switching capacity 65In/1000A max., metric thread terminals, for use in aircraft electrical systems, at temperatures between -55degreeC and 125degreeC and at a maximum altitude of Z = 22000m. Used together with EN 3773-001. Circuit breakers are intended for use in aircraft with electrical supplies in accordance with EN 2282.