EN 3774-004:2024
(Main)Aerospace series - Circuit breakers, three-pole, temperature compensated, rated currents 1 A to 25 A - Part 004: UNC thread terminals - Product standard
Aerospace series - Circuit breakers, three-pole, temperature compensated, rated currents 1 A to 25 A - Part 004: UNC thread terminals - Product standard
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 to 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.
They will continue to function up to the short-circuit current.
Luft- und Raumfahrt - Schutzschalter, dreipolig, temperaturkompensiert, Nennströme von 1 A bis 25 A - Teil 004: UNC-Klemmengewinde - Produktnorm
Série aérospatiale - Disjoncteurs tripolaires compensés en température, intensités nominales 1 A à 25 A - Partie 004 : Bornes à filetage UNC - Norme de produit
Le présent document spécifie les caractéristiques des disjoncteurs tripolaires compensés en température à intensité nominale de 1 A à 25 A, utilisés dans les circuits embarqués des aéronefs à des températures comprises entre -55 °C et 125 °C pour des intensités ≤ 15 A et de -55 °C à 90 °C pour des intensités > 15 A, à une altitude de 22 000 m max.
Ces disjoncteurs sont commandés par un bouton-poussoir unique (bouton de commande) de type « push-pull », à déclenchement libre temporisé.
Leur fonctionnement est assuré jusqu’au courant de court-circuit.
Aeronavtika - Odklopniki, tripolni, temperaturno kompenzirani, nazivni tok od 1 A do 25 A - 004. del: UNC-navojni priključki - Standard za proizvod
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 3774-004:2021
01-september-2021
Aeronavtika - Odklopniki, tripolni, temperaturno kompenzirani, nazivni tok od 1 A
do 25 A - 004. del: UNC-navojni priključki - Standard za proizvod
Aerospace series - Circuit breakers, three-pole, temperature compensated, rated
currents 1 A to 25 A - Part 004: UNC thread terminals - Product standard
Luft- und Raumfahrt - Schutzschalter, dreipolig, temperaturkompensiert, Nennströme von
1 A bis 25 A - Teil 004: UNC-Klemmengewind - Produktnorm
Série aérospatiale - Disjoncteurs tripolaires compensés en température, intensités
nominales 1 A à 25 A - Partie 004 : Bornes à filetage UNC - Norme de produit
Ta slovenski standard je istoveten z: prEN 3774-004
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
oSIST prEN 3774-004:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 3774-004:2021
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oSIST prEN 3774-004:2021
DRAFT
EUROPEAN STANDARD
prEN 3774-004
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2021
ICS 49.060 Will supersede EN 3774-004:2014
English Version
Aerospace series - Circuit breakers, three-pole,
temperature compensated, rated currents 1 A to 25 A -
Part 004: UNC thread terminals - 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 : Bornes à filetage UNC - Norme de produit - Teil 004: UNC-Klemmengewind - 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.
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language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
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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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3774-004:2021 E
worldwide for CEN national Members.
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oSIST prEN 3774-004:2021
prEN 3774-004:2021 (E)
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 . 5
4.3 Mass .
...
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