prEN 2996-005

SLOVENSKI STANDARD
01-marec-2024
Aeronavtika - Odklopniki, tripolni, temperaturno kompenzirani, nazivni tok od 1 A
do 25 A - 005. del: S polariziranim signalnim kontaktom - Standard za proizvod
Aerospace series - Circuit breakers, three-pole, temperature compensated, rated current
1 A to 25 A - Part 005: With polarized signal contact - Product standard
Luft- und Raumfahrt - Schutzschalter, dreipolig, temperaturkompensiert, Nennströme
von 1 A bis 25 A - Teil 005: Mit polarisiertem Signalkontakt - Produktnorm
Série aérospatiale - Disjoncteurs tripolaires compensés en température, intensités
nominales 1 A à 25 A - Partie 005 : Avec contact de signalisation polarisé - Norme de
produit
Ta slovenski standard je istoveten z: prEN 2996-005
ICS:
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2024
ICS 49.060 Will supersede EN 2996-005:2006
English Version
Aerospace series - Circuit breakers, three-pole,
temperature compensated, rated current 1 A to 25 A - Part
005: With polarized signal contact - Product standard
Série aérospatiale - Disjoncteurs tripolaires compensés Luft- und Raumfahrt - Schutzschalter, dreipolig,
en température, intensités nominales 1 A à 25 A - temperaturkompensiert, Nennströme von 1 A bis 25 A
Partie 005 : Avec contact de signalisation polarisé - - Teil 005: Mit polarisiertem Signalkontakt -
Norme de produit Produktnorm
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 2996-005:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Dimensions and mass . 5
4.1 Dimensional characteristics . 5
4.2 Electrical diagram . 7
4.3 Mass . 7
4.4 Panel mounting . 7
5 Characteristics . 7
5.1 Material, surface treatment . 7
5.2 Mechanical characteristics . 7
5.3 Environment characteristics . 8
5.4 Electrical characteristics . 8
6 Designation . 12
7 Rated current code . 12
8 Delivery codes . 12
9 Marking . 13
10 Technical specification . 13
Bibliography . 14

European foreword
This document (prEN 2996-005:2024) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 2996-005:2006.
EN 2996-005:2006:
— update of Clause 2 “Normative references”;
— addition to Clause 3 “Terms and definitions”;
— update of Table 1 and Table 6 to add 28 VDC and 26 VAC, 360 Hz to 800 Hz as a nominal voltage.
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.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2996-001:2023, Aerospace series — Circuit breakers, three-pole, temperature compensated, rated
currents 1 A to 25 A — Part 001: Technical specification
EN 3155-016, Aerospace series — Electrical contacts used in elements of connection — Part 016:
Contacts, electrical, male, type A, crimp, class S — Product standard
EN 3841-305, Aerospace series — Circuit breakers — Test methods — Part 305: Short-circuit
performance
EN 6113, Aerospace series — Circuit breaker, connecting and attachment hardware
TR 6083, Aerospace series — Cut-outs for installation of electrical components
MIL-S-19500, Semiconductor device, diode, silicon, fast recovery
FED-STD-595B, Colors used in Government Procurement
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/

Published as ASD-STAN Standard at the date of publication of this document by Aerospac
...