SIST EN 2996-004:2025

SLOVENSKI STANDARD
01-julij-2025
Aeronavtika - Odklopniki, tripolni, temperaturno kompenzirani, nazivni tok od 1 A
do 25 A - 004. del: S signalnim kontaktom - Standard za proizvod
Aerospace series - Circuit breakers, three-pole, temperature compensated, rated current
1 A to 25 A - Part 004: With signal contact - Product standard
Luft- und Raumfahrt - Schutzschalter, dreipolig, temperaturkompensiert, Nennströme
von 1 A bis 25 A - Teil 004: Mit Signalkontakt - Produktnorm
Série aérospatiale - Disjoncteurs tripolaires compensés en température, intensités
nominales 1 A à 25 A - Partie 004 : Avec contact de signalisation - Norme de produit
Ta slovenski standard je istoveten z: EN 2996-004:2025
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.

EN 2996-004
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2025
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 2996-004:2006
English Version
Aerospace series - Circuit breakers, three-pole,
temperature compensated, rated currents 1 A to 25 A -
Part 004: With 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 004 : Avec contact de signalisation - Norme de - Teil 004: Mit Signalkontakt - Produktnorm
produit
This European Standard was approved by CEN on 14 April 2025.

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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2996-004:2025 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 . 4
4.1 Dimensional characteristics . 4
4.2 Electrical diagram . 6
4.3 Mass . 6
4.4 Panel mounting . 6
5 Characteristics . 6
5.1 Material, surface treatment . 6
5.2 Material characteristics . 6
5.2.1 Fasteners . 6
5.2.2 Recommended tightening torque of attaching nut for installation . 6
5.2.3 Recommended tightening torque of connection hardware for installation . 6
5.2.4 Recommended tools for contacts of auxiliary contact insertion and extraction . 7
5.2.5 Resistance to vibrations . 7
5.2.6 Resistance to shocks . 7
5.2.7 Mechanical endurance . 7
5.3 Environment characteristics . 7
5.3.1 Humidity . 7
5.3.2 Corrosion . 7
5.3.3 Contaminating liquids . 7
5.3.4 Overvoltage caused by lightning . 7
5.4 Electrical characteristics . 7
6 Designation . 11
7 Rated current code . 11
8 Delivery codes . 11
9 Marking . 12
10 Technical specification . 12
Bibliography . 13
European foreword
This document (EN 2996-004:2025) has been prepared by 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 shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by December 2025, and conflicting national standards shall be
withdrawn at the latest by December 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document will supersede EN 2996-004:2006.
EN 2996-004:2006:
— EN 2996-004 (P3), 08/2006:
o update of Clause 2 “Normative references”;
o addition of Clause 3 “Terms and definitions”;
o update of Table 1 and Table 5 to add 28 V DC and 26 V AC, 360 Hz to 800 Hz as
a nominal voltage.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this document: 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 the
United Kingdom.
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 pushbutton (actuator), with delayed
action “trip-free” tripping with a 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
Th
...