1 Scope
This document specifies the characteristics of three-pole circuit breakers, temperature
compensated with a rated current from 1 A to 25 A, used in aircraft on-board circuits
at a temperature between −55 °C and 125 °C for ratings ≤ 15 A and −55 °C and 90 °C
for ratings > 15 A and at an altitude of 22 000 m max.
These circuit breakers are operated by a push-pull type single push button (actuator),
with delayed action “trip-free” tripping with a polarized signal contact which is
open when main contacts are closed, and inversely.
They will continue to function up to the short-circuit current.

