EN 3373-012:2005
(Main)Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 012: In-line splices, insulated and sealed, for crimping on copper conductors, temperature up to 150 °C - Product standard
Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 012: In-line splices, insulated and sealed, for crimping on copper conductors, temperature up to 150 °C - Product standard
This standard defines the characteristics of sealed, insulated, tin plated, in line splices for crimping on tin or silver plated copper conductors and nickel plated in-line splices for crimping on nickel plated copper conductors. They may be used at temperatures up to 150 °C maximum.
This standard shall be used in conjunction with EN 3373 001.
Luft- und Raumfahrt - Kabelschuhe und Stoßverbinder zum Crimpen auf elektrischen Leitungen - Teil 012: Stoßverbinder, isoliert und abgedichtet, zum Crimpen auf Leitungen aus Kupfer, für Temperaturen bis 150 °C - Produktnorm
Diese Norm legt die Eigenschaften von abgedichteten, isolierten, verzinnten Stoßverbindern zum Crimpen auf verzinnte oder versilberte Kupferleiter und von vernickelten Stoßverbindern zum Crimpen auf vernickelte Kupferleiter fest. Sie dürfen bei Temperaturen bis höchstens 150 °C eingesetzt werden.
Die vorliegende Norm ist in Verbindung mit EN 3373 001 anzuwenden.
Série aérospatiale - Cosses et prolongateurs pour sertissage sur conducteurs électriques - Partie 012 : Prolongateurs isolés pour sertissage sur conducteurs en cuivre, température jusqu' à 150 °C - Norme de produit
Aeronavtika – Kabelski čevlji in spojne tulke za spajanje s stiskanjem na električne vodnike – 012. del: Spojne tulke, izolirane in hermetične, za spajanje s stiskanjem na bakrene vodnike, temperature do 150 °C – Standard za proizvod
General Information
- Status
- Published
- Publication Date
- 13-Dec-2005
- Withdrawal Date
- 29-Jun-2006
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 14-Dec-2005
- Completion Date
- 14-Dec-2005
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 3373-012:2005 is a European standard part of the aerospace series that specifies the product requirements for insulated and sealed in-line splices used for crimping on copper conductors. These in-line splices are designed for tin or silver plated copper conductors, as well as nickel plated copper conductors, operating at temperatures up to 150 °C. Developed under the governance of CEN (European Committee for Standardization) and aligned with aerospace industry needs, this standard ensures reliable electrical connections critical to aerospace applications.
Key Topics
Scope and Application
Defines characteristics of sealed, insulated, tin-plated, and nickel-plated in-line splices suitable for crimping copper conductors used within aerospace electrical wiring systems.Materials and Construction
- Crimp barrel: Copper alloy in accordance with ASTM B 75
- Plating: Tin per ASTM B 545 or nickel per QQ-N-290A standards
- Insulating sleeve: Radiation cross-linked polyvinylidene fluoride with meltable sealing rings to ensure environmental sealing
Temperature Ratings
Certified for operational use in temperature ranges from -65 °C up to 150 °C, accommodating harsh aerospace environments.Dimensions and Color Coding
Detailed dimensional specifications and color code bands correspond to conductor size ranges, facilitating quick identification and compliance consistency.Testing and Compliance
- Electrical tests including dielectric withstand voltage of 2,500 volts DC for 1 minute
- Leakage current less than 2 mA and insulation resistance over 5,000 MΩ
- Temperature cycling and environmental durability tests consistent with aerospace industry standards
Assembly and Tooling
Specifies the use of crimping tools compliant with MIL-DTL-22520/37 and regulated heating devices for proper splice assembly.Marking and Packaging
Items must be clearly marked with color bands indicating item codes and supplied in packaging with full traceability including standard designation, manufacturer details, part numbers, batch, and manufacturing dates.
Applications
EN 3373-012:2005 splices are essential components in aerospace electrical wiring harnesses offering:
- Reliable Electrical Connections in harsh aerospace conditions, like rapid temperature changes and vibration environments
- Sealed, Insulated Splicing for long-term protection against moisture, contaminants, and mechanical stress
- Compatibility with High-Temperature Environments such as aircraft engine compartments and avionics bays
- Usage in Aircraft, Spacecraft, and Defence Systems requiring adherence to stringent quality and safety standards for electrical connections
- Maintenance and Replacement ensuring standardized parts allow for efficient troubleshooting and repairs in aerospace systems
Related Standards
- EN 3373-001: Technical specifications for terminal lugs and in-line splices for crimping on electric conductors, providing complementary requirements to EN 3373-012
- EN 2083: Aerospace standard for copper or copper alloy conductors in electrical cables, outlining conductor specifications that interface with these splices
- EN 2591-305: Aerospace test methods for rapid change of temperature, addressing the environmental testing of splice assemblies
- MIL-DTL-22520/37: U.S. military standard defining requirements for crimping tools used for electrical wire splicing
- ASTM Standards: Including ASTM B 545 (tin plating) and ASTM B 75 (copper tube specification), supporting material quality compliance
By implementing EN 3373-012:2005, manufacturers and aerospace engineers ensure that in-line electrical splices meet rigorous quality, performance, and safety levels demanded by the aerospace industry, contributing to optimal reliability in critical electrical systems.
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Frequently Asked Questions
EN 3373-012:2005 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 012: In-line splices, insulated and sealed, for crimping on copper conductors, temperature up to 150 °C - Product standard". This standard covers: This standard defines the characteristics of sealed, insulated, tin plated, in line splices for crimping on tin or silver plated copper conductors and nickel plated in-line splices for crimping on nickel plated copper conductors. They may be used at temperatures up to 150 °C maximum. This standard shall be used in conjunction with EN 3373 001.
This standard defines the characteristics of sealed, insulated, tin plated, in line splices for crimping on tin or silver plated copper conductors and nickel plated in-line splices for crimping on nickel plated copper conductors. They may be used at temperatures up to 150 °C maximum. This standard shall be used in conjunction with EN 3373 001.
EN 3373-012:2005 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 3373-012:2005 has the following relationships with other standards: It is inter standard links to EN 2083:2001, EN 2591-305:1997, EN 3373-001:2022, EN 3373-002:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3373-012:2005 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.Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 012: In-line splices, insulated and sealed, for crimping on copper conductors, temperature up to 150 °C - Product standardSérie aérospatiale - Cosses et prolongateurs pour sertissage sur conducteurs électriques - Partie 012 : Prolongateurs isolés pour sertissage sur conducteurs en cuivre, température jusqu' a 150 °C - Norme de produitLuft- und Raumfahrt - Kabelschuhe und Stossverbinder zum Crimpen auf elektrischen Leitungen - Teil 012: Stossverbinder isoliert und abgedichtet, zum Crimpen auf Leitungen aus Kupfer, für Temperaturen bis 150 °C - ProduktnormTa slovenski standard je istoveten z:EN 3373-012:2005SIST EN 3373-012:2006en49.060ICS:SLOVENSKI
STANDARDSIST EN 3373-012:200601-september-2006
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3373-012
December 2005 ICS 49.060 English Version
Aerospace series - Terminal lugs and in-line splices for crimping on electric conductors - Part 012: In-line splices, insulated and sealed, for crimping on copper conductors, temperature up to 150 °C - Product standard
Série aérospatiale - Cosses et prolongateurs pour sertissage sur conducteurs électriques - Partie 012 : Prolongateurs isolés pour sertissage sur conducteurs en cuivre, température jusqu' à 150 °C - Norme de produit
Luft- und Raumfahrt - Kabelschuhe und Stossverbinder zum Crimpen auf elektrischen Leitungen - Teil 012: Stossverbinder isoliert und abgedichtet, zum Crimpen auf Leitungen aus Kupfer, für Temperaturen bis 150 °C - Produktnorm This European Standard was approved by CEN on 28 October 2005.
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.
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B-1050 Brussels © 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3373-012:2005: E
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