EN 3373-014:2009
(Main)Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 014: In-line splices, insulated and sealed, for crimping on copper conductors, temperature up to 200 °C - Product standard
Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 014: In-line splices, insulated and sealed, for crimping on copper conductors, temperature up to 200 °C - Product standard
This standard defines the characteristics of sealed, insulated, nickel plated, in-line splices for crimping on nickel plated copper conductors. They may be used at temperatures up to 200 °C maximum on nickel plated conductors with insulation rated for at least 135 °C.
This standard shall be used in conjunction with EN 3373 001.
Luft- und Raumfahrt - Kabelschuhe und Stoßverbinder zum crimpen auf elektrischen Leitungen - Teil 014: Stoßverbinder, isoliert und abgedichtet, zum Crimpen auf Leitungen aus Kupfer, für Temperaturen bis 200 °C - Produktnorm
Diese Norm legt die Eigenschaften von abgedichteten, isolierten, vernickelten Stoßverbindern zum Crimpen
auf vernickelten Kupferleitungen fest. Sie können bei Temperaturen bis maximal 200 °C auf vernickelten
Leitungen mit einer Isolierung eingesetzt werden, die für mindestens 135 °C ausgelegt ist.
Diese Norm ist in Verbindung mit EN 3373-001 anzuwenden.
Série aérospatiale - Cosses et prolongateurs pour sertissage sur conducteurs électriques - Partie 014: Prolongateurs isolés et étanches pour sertissage sur conducteurs en cuivre, température jusqu'à 200 °C - Norme de produit
Aeronavtika - Kabelski čevlji in spojne tulke za spajanje s stiskanjem na električne vodnike - 014. del: Spojne tulke, izolirane in hermetične, za spajanje s stiskanjem na bakrene vodnike, temperature do 200 °C - Standard za proizvod
General Information
- Status
- Published
- Publication Date
- 10-Mar-2009
- Withdrawal Date
- 29-Sep-2009
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 21-Jan-2025
- Completion Date
- 11-Feb-2026
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 3373-014:2009 is a European standard developed by CEN for the aerospace industry, specifying the requirements for insulated and sealed in-line splices designed for crimping onto nickel-plated copper conductors. These components are essential in aerospace electrical systems, providing robust, secure, and durable connections in demanding environments where temperatures can reach up to 200°C. EN 3373-014:2009 is intended for use with copper conductor cables featuring insulation rated for at least 135°C, and must be applied in accordance with EN 3373-001, the general technical specification for terminal lugs and splices.
Key Topics
- Sealed and Insulated In-line Splices: The standard covers splices that combine effective electrical connection with environmental sealing and insulation, essential for high-reliability aerospace applications.
- Material Specifications: Insulating sleeves are made from heat-shrinkable, modified fluoropolymer with inner sealing rings of fluoroelastomer, ensuring excellent thermal and chemical resistance. Crimp barrels are manufactured from copper alloys and nickel-plated for added durability.
- High-Temperature Performance: Components are rated for continuous operation from -65°C up to 200°C, suitable for use in aircraft electrical systems exposed to extreme conditions.
- Application Range: The standard details conductor size ranges and corresponding color codes for easy identification and matching during assembly.
- Testing and Quality Assurance: Stringent testing protocols include electrical, mechanical, and environmental criteria, referencing EN 3373-001 and additional aerospace standards to verify performance.
- Assembly and Marking: Tools and procedures for crimping, heating, and marking are specified to ensure secure installation and traceable product identification.
Applications
EN 3373-014:2009 splices are used across a wide range of aerospace applications where reliable electrical connections are crucial, including:
- Aircraft Power and Control Systems: Ensuring continuous operation and safety in flight-critical wiring harnesses.
- Avionics and Instrumentation: Providing stable, low-resistance connections for sensitive signal and data transmission cables.
- Military and Spacecraft Electrical Assemblies: Used where resistance to vibration, moisture ingress, and temperature extremes is mandatory.
- Aerospace Maintenance and Repair: These splices offer a standardized solution for cable repairs and modifications, maintaining compliance with international requirements.
The use of insulated and sealed in-line splices according to EN 3373-014:2009 helps reduce the risk of short circuits, corrosion, or connection failures, which is vital for flight safety and long-term system reliability.
Related Standards
EN 3373-014:2009 is part of the wider EN 3373 series and should be used in conjunction with related standards, including:
- EN 3373-001 – Technical specification covering general requirements for terminal lugs and in-line splices.
- EN 2083 – Product standard for copper and copper alloys conductors for aerospace electrical cables.
- EN 2591-305 – Test methods for rapid change of temperature in aerospace electrical and optical connections.
- MIL-DTL-22520/37 – Specification for hand actuated crimping tools for environmental splices.
- ASTM B75 – Standard for seamless copper tube material.
- SAE-AMS-QQ-M-290 – Standard for electrodeposited nickel plating.
By adhering to EN 3373-014:2009 and related standards, manufacturers and maintenance providers ensure that their electrical splicing practices meet the strict quality, reliability, and safety standards essential in aerospace environments.
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Frequently Asked Questions
EN 3373-014:2009 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 014: In-line splices, insulated and sealed, for crimping on copper conductors, temperature up to 200 °C - Product standard". This standard covers: This standard defines the characteristics of sealed, insulated, nickel plated, in-line splices for crimping on nickel plated copper conductors. They may be used at temperatures up to 200 °C maximum on nickel plated conductors with insulation rated for at least 135 °C. This standard shall be used in conjunction with EN 3373 001.
This standard defines the characteristics of sealed, insulated, nickel plated, in-line splices for crimping on nickel plated copper conductors. They may be used at temperatures up to 200 °C maximum on nickel plated conductors with insulation rated for at least 135 °C. This standard shall be used in conjunction with EN 3373 001.
EN 3373-014:2009 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 3373-014:2009 has the following relationships with other standards: It is inter standard links to EN 3373-001:2022, EN 2083:2001, EN 2591-305:1997, EN 3373-002:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3373-014:2009 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.Luft- und Raumfahrt - Kabelschuhe und Stossverbinder zum crimpen an elektrische Leitungen - Teil 014: Stossverbinder isoliert, abgedichtet, Crimpenversion Kupferleitungen, für Temperaturen bis 200 °C - ProduktnormSérie aérospatiale - Cosses et prolongateurs pour sertissage sur conducteurs électriques - Partie 014: Prolongateurs isolés
et étanches pour sertissage sur conducteurs en cuivre,
température jusqu'à 200 °C - Norme de produitAerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 014: In-line splices, insulated and sealed, for crimping on copper conductors, temperature up to 200 °C - Product standard49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 3373-014:2009SIST EN 3373-014:2009en01-maj-2009SIST EN 3373-014:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3373-014
March 2009 ICS 49.060 English Version
Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 014: In-line splices, insulated and sealed, for crimping on copper conductors, temperature up to 200 °C - Product standard
Série aérospatiale - Cosses et prolongateurs pour sertissage sur conducteurs électriques - Partie 014: Prolongateurs isolés
et étanches pour sertissage sur conducteurs en cuivre,
température jusqu'à 200 °C - Norme de produit
Luft- und Raumfahrt - Kabelschuhe und Stossverbinder zum crimpen an elektrische Leitungen - Teil 014: Stossverbinder isoliert, abgedichtet, Crimpenversion Kupferleitungen, für Temperaturen bis 200 °C - Produktnorm This European Standard was approved by CEN on 30 August 2008.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3373-014:2009: ESIST EN 3373-014:2009
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