SIST EN 2591-403:2025

Aerospace series - Elements of electrical and optical connection - Test methods - Part 403: Sinusoidal and random vibration

This document specifies a method of determining the ability of elements of connection to withstand sinusoidal or random vibrations of specified severities.
It is used together with EN 2591-100.
This test is based on EN 60068-2-6 and EN 60068-2-64.

Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 403: Sinus- und rauschförmige Schwingungen

Dieses Dokument legt ein Verfahren zum Nachweis der Widerstandsfähigkeit von Verbindungselementen gegenüber sinus- und rauschförmigen Schwingungen festgelegter Schärfegrade fest.
Es wird gemeinsam mit EN 2591 100 angewendet.
Diese Prüfung basiert auf EN 60068 2 6 und EN 60068 2 64.

Série aérospatiale - Organes de connexion électrique et optique - Méthodes d’essais - Partie 403: Vibrations sinusoïdales et aléatoires

Le présent document spécifie une méthode pour déterminer l'aptitude des organes de connexion à supporter des vibrations sinusoïdales et aléatoires à des sévérités spécifiées.
Il est utilisé conjointement avec l’EN 2591-100.
Cet essai est basé sur l'EN 60068-2-6 et l’EN 60068-2-64.

Aeronavtika - Elementi električnih in optičnih povezav - Preskusne metode - 403. del: Sinusna in naključna nihanja

Ta dokument določa metodo za ugotavljanje odpornosti elementov povezav na sinusna ali naključna nihanja določenih moči. Uporablja se skupaj s standardom EN 2591-100. Ta preskus temelji na standardih EN 60068-2-6 in EN 60068-2-64.

General Information

• Status: Published
• Public Enquiry End Date: 09-May-2023
• Publication Date: 19-May-2025
• ICS: 49.060 - Aerospace electric equipment and systems
• ICS: 49.090 - On-board equipment and instruments
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 15-May-2025
• Due Date: 20-Jul-2025
• Completion Date: 20-May-2025
• Ref Project: EN 2591-403:2025 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 403: Sinusoidal and random vibration

Relations

• Revised: SIST EN 2591-403:2019 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 403: Sinusoidal and random vibration
• Effective Date: 18-Jan-2023

Overview

EN 2591-403:2025 - Aerospace series: Elements of electrical and optical connection - Test methods - Part 403: Sinusoidal and random vibration - specifies test procedures to determine the ability of electrical and optical connection elements (connectors, contacts, harnesses) to withstand sinusoidal and broadband random vibration severities. It is intended to be used together with EN 2591-100 and is based on EN 60068-2-6 (sinusoidal) and EN 60068-2-64 (random).

Key topics and technical requirements

• Test methods
  • Method A - Sinusoidal vibration (per EN 60068-2-6): sweep 5 Hz to 3 000 Hz in 20 min; cycle repeated 12 times per axis (approx. 12 h total). Preferred severity levels (Level 1–3) define amplitude/acceleration cross-over points.
  • Method B - Random vibration (per EN 60068-2-64): broadband spectral shapes and power spectral density (PSD) options (lower and higher noise RMS curves). Test axes, monitoring and durations are specified.
  • Method C - High vibration endurance: harness and clipping requirements, connector coupling torque and mechanical mounting details for endurance validation.
• Specimen preparation
  • Connector qualification: all contact lines wired in series.
  • Contact qualification: each contact monitored individually.
  • Details to be specified in the technical specification: mounting method, mated/unmated condition, sensor fixation, temperature, duration, accessories and initial/final measurements.
• Measurement & acceptance
  • Vibration monitoring at specimen fixing points to verify PSD/sinusoidal curve compliance.
  • Electrical discontinuity limit: no discontinuity ≥ 1 µs; shorter events allowed if <1 Hz repetition rate.
  • Post-test sequence may include EN 2591-101 (visual), EN 2591-408 (mating/unmating forces), and EN 2591-201/202 (contact resistance).

Applications and who uses it

• Designed for aerospace manufacturers, connector and contact designers, test laboratories, quality and reliability engineers, and specification authors.
• Practical uses:
  • Qualifying electrical and optical connectors and harness assemblies for aircraft and space vehicles.
  • Defining vibration requirements in procurement and type-approval documentation.
  • Establishing test procedures for R&D, production validation and failure analysis.
• Keywords: EN 2591-403:2025, aerospace connectors, vibration testing, sinusoidal vibration, random vibration, PSD, connector qualification.

Related standards

• EN 2591-100 (general test framework)
• EN 2591-101, EN 2591-201, EN 2591-202, EN 2591-204, EN 2591-408
• EN 60068-2-6 and EN 60068-2-64 (vibration test methods)

This standard provides the procedural and monitoring controls needed to ensure connector reliability under specified sinusoidal and random vibration environments typical in aerospace systems.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2025
Aeronavtika - Elementi električnih in optičnih povezav - Preskusne metode - 403.
del: Sinusna in naključna nihanja
Aerospace series - Elements of electrical and optical connection - Test methods - Part
403: Sinusoidal and random vibration
Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren -
Teil 403: Sinus- und rauschförmige Schwingungen
Série aérospatiale - Organes de connexion électrique et optique - Méthodes d’essais -
Partie 403: Vibrations sinusoïdales et aléatoires
Ta slovenski standard je istoveten z: EN 2591-403:2025
ICS:
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
49.090 Oprema in instrumenti v On-board equipment and
zračnih in vesoljskih plovilih instruments
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 2591-403
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2025
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 2591-403:2018
English Version
Aerospace series - Elements of electrical and optical
connection - Test methods - Part 403: Sinusoidal and
random vibration
Série aérospatiale - Organes de connexion électrique et Luft- und Raumfahrt - Elektrische und optische
optique - Méthodes d'essais - Partie 403 : Vibrations Verbindungselemente - Prüfverfahren - Teil 403:
sinusoïdales et aléatoires Sinus- und rauschförmige Schwingungen
This European Standard was approved by CEN on 2 September 2024.

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 2591-403:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Preparation of specimens . 6
4.1 Preparation . 6
4.2 Technical details – Technical specification . 6
5 Method A – Sinusoidal vibration EN 60068-2-6 . 6
5.1 General. 6
5.2 Apparatus . 6
5.3 Initial measurements . 6
5.4 Procedure . 7
5.4.1 Endurance . 7
5.4.2 Test duration . 7
5.5 Preferred vibration levels . 7
5.5.1 General. 7
5.5.2 Level 1 . 7
5.5.3 Level 2 . 7
5.5.4 Level 3 . 7
6 Method B – Random vibration EN 60068-2-64 . 8
6.1 General. 8
6.2 Apparatus . 8
6.3 Initial measurements . 8
6.4 Procedure . 9
6.5 Preferred vibration levels . 9
6.5.1 Vibration monitoring . 9
6.5.2 Random vibration severity . 9
6.5.3 Spectral shape and density . 9
6.5.4 Test duration . 12
6.6 Final measurements (if applicable) . 12
7 Method C – High vibration endurance . 12
7.1 Test methods . 12
7.2 Test specification . 13
7.3 Performance requirements . 13
Bibliography . 14

European foreword
This document (EN 2591-403:2025) 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 European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2025, and conflicting national
standards shall be withdrawn at the latest by November 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 supersedes EN 2591-403:2018.
This document includes the following significant technical changes with respect to
EN 2591-403:2018:
— normative references updated;
— scope: dated reference in Clause 5.4.1 and Clause 6.4 updated.
Any feedback and questions on this document should be directed to the users’ national standards
body. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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 a method of determining the ability of elements of connection to withstand
sinusoidal or random vibrations of specified sev
...