EN 2349-318:2006
(Main)Aerospace series - Requirements and test procedures for relays and contactors - Part 318: Pick-up voltage at high temperature and drop-out voltage at low temperature
Aerospace series - Requirements and test procedures for relays and contactors - Part 318: Pick-up voltage at high temperature and drop-out voltage at low temperature
This standard specifies a method for testing the pick-up voltage at high temperature and release voltage at low temperature of relays and contactors. It shall be used together with EN 2349-100.
Luft- und Raumfahrt - Anforderungen und Prüfverfahren für Relais und Schaltschütze - Teil 318: Ansprechspannung bei hoher Temperatur und Rückfallspannung bei niedriger Temperatur
Diese Norm legt ein Verfahren zur Prüfung der Ansprechspannung bei hoher Temperatur und der Rückfallspannung bei niedrigere Temperatur 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 318 : Tension de collage à haute température et de décollage à basse température
Aeronavtika - Zahteve in preskusni postopki za releje in kontaktorje - 318. del: Napetost pri vklopu pri visoki temperaturi in napetost ob izpadu pri nizki temperaturi
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 2349-318:2006 (CEN) defines a standardized method to test the pick-up voltage at high temperature and drop-out (release) voltage at low temperature for relays and contactors used in aerospace applications. This Part 318 is intended to be used together with EN 2349-100 (general requirements) and forms part of the EN 2349 aerospace series. The procedure ensures components meet the electrical actuation characteristics required under extreme thermal conditions.
Key Topics
- Scope: Specifies how to measure pick-up and drop-out voltages under elevated and reduced temperatures respectively; applies to relays and contactors when used with EN 2349-100.
- Mounting method: Devices are wired per EN 2349-100 and placed in a heating or cooling cabinet with the coil connected through a switch to the power source.
- Pick-up voltage at high temperature:
- Cabinet temperature is brought to the level specified in the product standard and stabilized.
- Device is stored at that temperature for 1 hour before measurement.
- Measurements are taken in all three perpendicularly opposed planes.
- Two conditions defined: previously de-energized coil (stored 1 h, contacts unloaded) and previously energized coil (stored 1 h at rated voltage with coil energized, contacts unloaded).
- Samples shall be returned to (23 ± 3) °C for at least 1 hour before further tests.
- Drop-out voltage at low temperature:
- Cabinet temperature is set to the product-standard value and stabilized.
- Device is stored at that temperature for 48 hours with the coil de-energized and contacts unloaded.
- Release voltage and contact voltage drop are measured in all three orthogonal planes while maintaining the low temperature.
- To limit self-heating, the coil may be energized for no longer than 30 seconds during measurement.
- Test criteria: Measured values must fall within limits specified in the applicable product standard.
- Verification tests: Additional verification per EN 2349-201, EN 2349-301, EN 2349-303, EN 2349-307 and EN 2349-412 as applicable.
Applications
This standard is essential for:
- Design validation - proving relay and contactor actuation across temperature extremes.
- Qualification and acceptance testing - aerospace manufacturers and suppliers can demonstrate compliance.
- Procurement and quality control - used in specifications for part acceptance and lot testing.
- Maintenance and troubleshooting - establishing baseline actuation voltages for field inspections.
By following EN 2349-318:2006, organizations ensure reliable electrical switching performance in thermal extremes, reducing risk in critical aerospace systems.
Related Standards
- EN 2349-100 - General requirements for relays and contactors
- EN 2349-201 - Visual inspection
- EN 2349-301 - Pick-up and drop-out voltage (general)
- EN 2349-303 - Dielectric strength
- EN 2349-307 - (referenced verification tests)
- EN 2349-412 - Seal
This Part 318 is published under the CEN/ASD-STAN framework and should be used in conjunction with the product-specific EN 2349 requirements.
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Frequently Asked Questions
EN 2349-318:2006 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 318: Pick-up voltage at high temperature and drop-out voltage at low temperature". This standard covers: This standard specifies a method for testing the pick-up voltage at high temperature and release voltage at low temperature of relays and contactors. It shall be used together with EN 2349-100.
This standard specifies a method for testing the pick-up voltage at high temperature and release voltage at low temperature of relays and contactors. It shall be used together with EN 2349-100.
EN 2349-318:2006 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 2349-318:2006 has the following relationships with other standards: It is inter standard links to EN 2349-301:2006, EN 2349-412:2007, EN 2349-201:2006, EN 2349-303:2006, EN 2593-001:2014, EN ISO 22435:2007. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 2349-318:2006 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 - 318. del: Napetost pri vklopu pri visoki temperaturi in napetost ob izpadu pri nizki temperaturiLuft- und Raumfahrt - Anforderungen und Prüfverfahren für Relais und Schaltschütze - Teil 318: Ansprechspannung bei hoher Temperatur und Rückfallspannung bei niedriger TemperaturSérie aérospatiale - Exigences et méthodes d'essais des relais et contacteurs - Partie 318 : Tension de collage à haute température et de décollage à basse températureAerospace series - Requirements and test procedures for relays and contactors - Part 318: Pick-up voltage at high temperature and drop-out voltage at low temperature49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 2349-318:2006SIST EN 2349-318:2009en,de01-maj-2009SIST EN 2349-318:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2349-318October 2006ICS 49.060 English VersionAerospace series - Requirements and test procedures for relaysand contactors - Part 318: Pick-up voltage at high temperatureand drop-out voltage at low temperatureSérie aérospatiale - Exigences et méthodes d'essais desrelais et contacteurs - Partie 318 : Tension de collage àhaute température et de décollage à basse températureLuft- und Raumfahrt - Anforderungen und Prüfverfahren fürRelais und Schaltschütze - Teil 318: Ansprechspannungbei hoher Temperatur und Rückfallspannung bei niedrigerTemperaturThis European Standard was approved by CEN on 19 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 2349-318:2006: ESIST EN 2349-318:2009
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