SIST EN 3841-511:2005

Aerospace series - Circuit breakers - Test methods - Part 511: Combined test: temperature, altitude and vibration

This standard specifies a method for a combined test of temperature, altitude and vibration of circuit breakers.
It shall be used together with EN 3841-100.

Luft- und Raumfahrt - Schutzschalter - Prüfverfahren - Teil 511: Kombinierter Versuch: Temperatur, Höhe und Schwingung

Série aérospatiale - Disjoncteurs - Méthodes d'essais - Partie 511 : Essai combiné : Température, altitude et vibrations

Aeronavtika - Odklopniki - Preskusne metode - 511. del: Kombinirana metoda: temperatura, višina in vibracije

General Information

• Status: Published
• Publication Date: 31-Mar-2005
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: SS SPL - Technical Board for the general field
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Apr-2005
• Due Date: 01-Apr-2005
• Completion Date: 01-Apr-2005
• Ref Project: EN 3841-511:2004 - Aerospace series - Circuit breakers - Test methods - Part 511: Combined test: temperature, altitude and vibration

Overview

EN 3841-511:2004 - "Aerospace series - Circuit breakers - Test methods - Part 511: Combined test: temperature, altitude and vibration" is a CEN‑adopted aerospace test standard that defines a method for subjecting circuit breakers to simultaneous environmental stresses: temperature, reduced pressure (altitude) and vibration. It is intended for environmental qualification and verification of avionics and aerospace circuit breakers and must be used together with EN 3841-100 (general test requirements).

Keywords: EN 3841-511:2004, aerospace circuit breaker test methods, combined temperature altitude vibration test, environmental qualification, avionics circuit breakers.

Key topics and technical requirements

• Scope: Specifies a combined test method integrating temperature, altitude (pressure) and vibration for circuit breakers.
• Mandatory companion documents:
  • EN 3841-100 - General test methods and requirements.
  • EN 3841-506 - Vibration performance (used to perform the vibration portion).
• Mounting and fixturing:
  • Circuit breakers are mounted in a test chamber on a vibrator per EN 3841-100 clauses referenced.
  • Mounting must transmit vibrations across the full frequency range without absorption or introducing natural resonances.
  • Cables are connected using sections specified in EN 3841-100 and attached to the vibration support about 100 mm from the terminals.
  • Mounting torque for terminals and attachments shall follow the product standard.
• Test procedure:
  • Circuit breakers are subjected to the specified electrical load until thermal stabilization is reached.
  • Temperature and pressure in the breaker test chamber are stabilized and maintained at values specified by the technical specification.
  • Temperature measurement: taken at upper and lower chamber levels; difference must be ≤ 10 °C.
  • Pressure tolerance: ± 3%.
  • Vibration is applied according to EN 3841-506 at values defined in the technical specification.
• Acceptance: Functional and performance requirements follow the applicable product technical specification and standards.

Applications and who should use it

• Aerospace OEMs and suppliers performing environmental qualification of circuit breakers.
• Independent test laboratories conducting combined environmental stress tests for certification.
• Design and verification engineers validating reliability of avionics power distribution components.
• Certification bodies and procurement teams specifying environmental acceptance criteria for aircraft electrical hardware.

This standard ensures consistent, reproducible combined-environment testing for circuit breakers used in aircraft systems, helping reduce in‑service failures due to thermal, pressure and vibratory stresses.

Related standards

• EN 3841-100 - Aerospace series - Circuit breakers - Test methods - Part 100: General
• EN 3841-506 - Aerospace series - Circuit breakers - Test methods - Part 506: Vibration performance

For implementation, always follow the specific technical specification and product standard referenced for the device under test.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2005
Aeronavtika - Odklopniki - Preskusne metode - 511. del: Kombinirana metoda:
temperatura, višina in vibracije
Aerospace series - Circuit breakers - Test methods - Part 511: Combined test:
temperature, altitude and vibration
Luft- und Raumfahrt - Schutzschalter - Prüfverfahren - Teil 511: Kombinierter Versuch:
Temperatur, Höhe und Schwingung
Série aérospatiale - Disjoncteurs - Méthodes d'essais - Partie 511 : Essai combiné :
Température, altitude et vibrations
Ta slovenski standard je istoveten z: EN 3841-511:2004
ICS:
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 3841-511
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS 49.060
English version
Aerospace series - Circuit breakers - Test methods - Part 511:
Combined test: temperature, altitude and vibration
Série aérospatiale - Disjoncteurs - Méthodes d'essais - Luft- und Raumfahrt - Schutzschalter - Prüfverfahren - Teil
Partie 511 : Essai combiné : température, altitude et 511: Kombinierter Versuch: Temperatur, Höhe und
vibrations Schwingung
This European Standard was approved by CEN on 10 September 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3841-511:2004: E
worldwide for CEN national Members.

Contents Page
1 Scope .4
2 Normative references .4
3 Method .4

Foreword
This document (EN 3841-511:2004) has been prepared by the European Association of Aerospac
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