NA 131

DIN Standards Committee Aerospace

Project

Aerospace series - Circuit breakers, three-pole, temperature compensated, rated current 20 A to 50 A - Part 004: UNC thread terminals - Product standard; German and English version prEN 2665-004:2026

Abstract

This document specifies the characteristics of three-pole circuit breakers, temperature compensated with a rated current from 20 A to 50 A, used in aircraft on-board circuits at a temperature between −55 °C and 90 °C at an altitude of 15 000 m max. These circuit breakers are operated by a push-pull type single pushbutton (actuator), with delayed action "trip free" tripping. They will continue to function up to the short-circuit current.

Begin

2025-01-21

WI

04004950

Planned document number

DIN EN 2665-004

Project number

13116850

Responsible national committee

NA 131-04-05 AA - Switch, relays and protection devices  

Responsible european committee

ASD-STAN/D 2/WG 5 - Protection Devices  

previous edition(s)

Aerospace series - Circuit breakers, three-pole, temperature compensated, rated currents 20 A to 50 A - Part 004: UNC thread terminals - Product standard; German and English version EN 2665-004:2013
2014-03

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