EN 2349-307:2006
(Main)Aerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop
Aerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop
This standard specifies a method for testing the contact voltage drop of relays and contactors. It shall be used together with EN 2349-100.
Luft- und Raumfahrt - Anforderungen und Prüfverfahren für Relais und Schaltschütze - Teil 307: Kontaktspannungsabfall
Diese Norm legt ein Verfahren zur Prüfung des Kontaktspannungsabfalls von Relais und Schaltschützen fest. Sie ist in Verbindung mit EN 2349 100 anzuwenden.
Série aérospatiale - Exigences et méthodes d'essais des relais et contacteurs - Partie 307 : Chute de tension au contact
Aeronavtika - Zahteve in preskusni postopki za releje in kontaktorje - 307. del: Padec napetosti pri kontaktu
General Information
- Status
- Published
- Publication Date
- 24-Oct-2006
- Withdrawal Date
- 29-Apr-2007
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 01-Jun-2017
- Completion Date
- 28-Jan-2026
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 2349-307:2006 is a European aerospace standard that defines a specific method for measuring contact voltage drop in relays and contactors. Issued by CEN and prepared by ASD-STAN, this Part 307 document is intended to be used together with EN 2349-100 (General requirements). The standard focuses on how to perform repeatable, comparable voltage-drop measurements under defined load and timing conditions so that manufacturers, test houses and qualification teams can demonstrate compliance with product limits specified in the applicable product standard.
Key Topics
- Scope and application
- Method for testing contact voltage drop on relays and contactors; complements EN 2349-100.
- Measurement points
- Voltage drop shall be measured on both normally-open (NO) and normally-closed (NC) contacts.
- Plug-socket consideration
- For devices using plug-socket holders, the voltage drop contribution of the holder must be taken into account per the product standard.
- Energized-state conditions
- When testing in the energized state, apply the rated coil voltage.
- Contact loading
- Qualification tests use the rated resistive load. For batch testing the load may be below rated current, but the measured voltage drop must be projected to the maximum permissible value at rated current.
- Open contact voltage
- Use 6 V DC for devices rated up to 25 A, and 28 V DC for devices rated over 25 A (DC or AC acceptable).
- Switching and timing
- Contacts shall not be switched under load unless the product standard allows it.
- Take the voltage-drop measurement between 3 s and 10 s after applying the test current.
- Sampling
- Batch acceptance / acceptance inspection: 1 measurement per sample.
- Qualification testing: 10 measurements.
- Pass/fail criterion
- Measured contact voltage drop must not exceed the value specified in the applicable product standard.
Applications
This standard is used by:
- Aerospace component manufacturers for product design verification and production testing.
- Environmental and electrical test laboratories performing qualification and acceptance testing.
- Quality assurance and procurement teams verifying supplier compliance.
- Certification bodies assessing electrical performance of relays/contactors for aircraft systems.
EN 2349-307:2006 helps ensure consistent, reproducible voltage-drop data for reliability, thermal assessment, and system-level power-loss calculations in aerospace electrical systems.
Related Standards
- EN 2349-100 - Aerospace series - Requirements and test procedures for relays and contactors - Part 100: General requirements (to be used in conjunction with EN 2349-307:2006).
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Frequently Asked Questions
EN 2349-307:2006 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop". This standard covers: This standard specifies a method for testing the contact voltage drop of relays and contactors. It shall be used together with EN 2349-100.
This standard specifies a method for testing the contact voltage drop of relays and contactors. It shall be used together with EN 2349-100.
EN 2349-307:2006 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 2349-307:2006 has the following relationships with other standards: It is inter standard links to EN 2349-413:2007, EN 2349-312:2006, EN 2349-414:2007, EN 2593-001:2014, EN 2349-411:2007, EN 2349-415:2007. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 2349-307:2006 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Zahteve in preskusni postopki za releje in kontaktorje - 307. del: Padec napetosti pri kontaktuLuft- und Raumfahrt - Anforderungen und Prüfverfahren für Relais und Schaltschütze - Teil 307: KontaktspannungsabfallSérie aérospatiale - Exigences et méthodes d'essais des relais et contacteurs - Partie 307 : Chute de tension au contactAerospace series - Requirements and test procedures for relays and contactors - Part 307: Contact voltage drop49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 2349-307:2006SIST EN 2349-307:2009en,de01-maj-2009SIST EN 2349-307:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2349-307October 2006ICS 49.060 English VersionAerospace series - Requirements and test procedures for relaysand contactors - Part 307: Contact voltage dropSérie aérospatiale - Exigences et méthodes d'essais desrelais et contacteurs - Partie 307 : Chute de tension aucontactLuft- und Raumfahrt - Anforderungen und Prüfverfahren fürRelais und Schaltschütze - Teil 307: KontaktspannungsfallThis European Standard was approved by CEN on 10 May 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2349-307:2006: ESIST EN 2349-307:2009
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