EN 3646-005:2017
(Main)Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous - Part 005: Receptacle, hermetic, square flange mounting - Product standard
Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous - Part 005: Receptacle, hermetic, square flange mounting - Product standard
This European Standard defines the characteristics of hermetic square flange receptacles in the family of bayonet coupling circular connectors, intended for use in an operating temperature range of - 65 °C to 175 °C or 200 °C continuous.
It applies to models defined in Table 3.
For plugs and protective covers see EN 3646-008 and EN 3646-009 respectively.
Table 3 - Connectors models
(...)
Luft- und Raumfahrt - Elektrische Rundsteckverbinder mit Bajonettkupplung, Betriebstemperatur 175 °C oder 200 °C konstant - Teil 005: Hermetischer fester Steckverbinder mit quadratischem Montageflansch - Produktnorm
Série aérospatiale - Connecteurs électriques circulaires à accouplement par baïonnettes, température d'utilisation 175 °C ou 200 °C continu - Partie 005: Embase hermétique à fixation par collerette carrée - Norme de produit
Aeronavtika - Konektorji, električni, okrogli, bajonetno sklapljanje, stalna delovna temperatura 175 °C ali 200 °C - 005. del: Spojnik, hermetičen, s kvadratno montažno prirobnico - Standard za proizvod
Ta evropski standard določa lastnosti hermetičnih spojnikov s kvadratno prirobnico v družini okroglih bajonetno sklopljenih konektorjev, namenjenih uporabi pri delovni temperaturi med −65 °C to 175 °C ali pri stalni delovni temperaturi 200 °C.
Uporablja se za modele iz preglednice 3.
Za čepe in zaščitna prekrivala glejte ustrezna standarda EN 3646-008 in EN 3646-009.
General Information
- Status
- Published
- Publication Date
- 07-Mar-2017
- Withdrawal Date
- 29-Sep-2017
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 08-Mar-2017
- Completion Date
- 08-Mar-2017
Relations
- Effective Date
- 15-Mar-2017
- 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
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 3646-005:2017 is a European Standard developed by CEN that specifies the product requirements for hermetic square flange receptacles in the aerospace industry. These electrical circular connectors feature bayonet coupling and are designed for continuous operation at high temperatures of 175 °C or 200 °C. The standard covers mechanical and electrical characteristics critical for reliable performance in harsh environments, including an operating temperature range from -65 °C up to 200 °C continuous use.
This standard applies specifically to the models detailed in Table 3 of the document and is part of the wider EN 3646 series, addressing connectors used in aerospace applications demanding durability, secure connections, and hermetic sealing.
Key Topics
Hermetic Square Flange Receptacles
The standard defines electrical connectors with hermetic sealing and a square flange mounting interface, ensuring resistance to environmental contaminants and pressure differentials.Bayonet Coupling Mechanism
These connectors employ a bayonet coupling system that provides quick, secure locking and easy mating/unmating operations in aerospace assemblies.Operating Temperature Range
Designed for extreme conditions, the connectors operate continuously between -65 °C and either 175 °C or 200 °C, supporting applications that require high thermal resilience.Dimensional and Mechanical Specifications
Includes precise dimensions, mass limits, panel cut-out requirements, and tolerances to ensure interchangeability and compatibility with mating plugs and protective covers (refer to EN 3646-008 and EN 3646-009).Materials and Surface Treatment
Connectors are made with passivated stainless steel shells to enhance corrosion resistance while maintaining hermetic integrity, suitable for the aerospace operating environment.Marking Requirements
Products must be marked clearly with manufacturer's part number, date of manufacture, and trademark on both the connector and its packaging to maintain traceability.Reference to Related Standards
The document is to be used alongside other parts of the EN 3646 series such as EN 3646-001 (technical specifications), EN 3646-002 (performance and contact arrangements), EN 3646-008 (plugs), and EN 3646-009 (protective covers).
Applications
EN 3646-005:2017 connectors are critical in aerospace systems where dependable electrical connections are required under challenging conditions including:
- Aircraft and spacecraft electrical systems operating at high temperatures
- Avionics equipment requiring hermetic sealing against moisture and contaminants
- Critical instrumentation and control systems subject to thermal cycling
- Aerospace installations with demanding vibration and shock resistance needs
- Environments necessitating compact, secure, and quick-release connector interfaces
Because of their robust design and compliance with stringent aerospace standards, these connectors contribute to the overall safety, reliability, and lifecycle performance of aerospace vehicles and subsystems.
Related Standards
To ensure comprehensive system integration and performance, EN 3646-005 should be used in conjunction with the following standards from the EN 3646 series:
- EN 3646-001: Technical specifications for electrical circular bayonet coupling connectors at high temperatures
- EN 3646-002: Specifications for performance criteria and contact arrangements
- EN 3646-008: Plug product standards compatible with receptacles defined in this part
- EN 3646-009: Protective covers designed for hermetic connectors in harsh environments
These standards collectively define the design, testing, and application criteria for aerospace-grade connectors capable of sustaining extreme thermal and environmental stresses.
Keywords: EN 3646-005:2017, aerospace electrical connectors, hermetic receptacle, square flange connector, bayonet coupling, high-temperature connectors, aerospace standard, connector specifications, aerospace electrical systems, circular connectors, hermetic sealing connectors, passivated stainless steel connectors.
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Frequently Asked Questions
EN 3646-005:2017 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous - Part 005: Receptacle, hermetic, square flange mounting - Product standard". This standard covers: This European Standard defines the characteristics of hermetic square flange receptacles in the family of bayonet coupling circular connectors, intended for use in an operating temperature range of - 65 °C to 175 °C or 200 °C continuous. It applies to models defined in Table 3. For plugs and protective covers see EN 3646-008 and EN 3646-009 respectively. Table 3 - Connectors models (...)
This European Standard defines the characteristics of hermetic square flange receptacles in the family of bayonet coupling circular connectors, intended for use in an operating temperature range of - 65 °C to 175 °C or 200 °C continuous. It applies to models defined in Table 3. For plugs and protective covers see EN 3646-008 and EN 3646-009 respectively. Table 3 - Connectors models (...)
EN 3646-005:2017 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 3646-005:2017 has the following relationships with other standards: It is inter standard links to EN 3646-005:2006, EN 3646-009:2015, EN 3646-001:2015, EN 3646-002:2007, EN 3646-008:2006, EN 3660-034:2017, EN 3660-002:2016, EN 3155-002:2024, EN 3660-002:2006, EN 3646-009:2006, EN 3660-066:2017. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3646-005:2017 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.NYDGUDWQRLuft- und Raumfahrt - Elektrische Rundsteckverbinder mit Bajonettkupplung, Betriebstemperatur 175 °C oder 200 °C konstant - Teil 005: Hermetischer fester Steckverbinder mit quadratischem Montageflansch - ProduktnormSérie aérospatiale - Connecteurs électriques circulaires à accouplement par baïonnettes, température d'utilisation 175 °C ou 200 °C continu - Partie 005: Embase hermétique à fixation par collerette carrée - Norme de produitAerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous - Part 005: Receptacle, hermetic, square flange mounting - Product standard49.060Aerospace electric equipment and systems31.220.10Plug-and-socket devices. ConnectorsICS:Ta slovenski standard je istoveten z:EN 3646-005:2017SIST EN 3646-005:2017en,fr,de01-maj-2017SIST EN 3646-005:2017SLOVENSKI
STANDARDSIST EN 3646-005:20091DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3646-005
March
t r s y ICS
v {ä r x r Supersedes EN
u x v xæ r r wã t r r xEnglish Version
Aerospace series æ Connectorsá electricalá circulará bayonet couplingá operating temperature
s y w
¹C or
t r r
¹C continuous æ Part
r r wã Receptacleá hermeticá square flange mounting æ Product standard Série aérospatiale æ Connecteurs électriques circulaires à accouplement par baïonnettesá température d 5utilisation
s y w
¹C ou
t r r
¹C continu æ Partie
r r wã Embase hermétique à fixation par collerette carrée æ Norme de produit
Luftæ und Raumfahrt æ Elektrische Rundsteckverbinder mit Bajonettkupplungá Betriebstemperatur
s y w
¹C oder
t r r
¹C konstant æ Teil
r r wã Hermetischer fester Steckverbinder mit quadratischem Montageflansch æ Produktnorm This European Standard was approved by CEN on
t x October
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
u x v xæ r r wã t r s y ESIST EN 3646-005:2017
Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Terms and definitions . 4 4 Required characteristics . 4 5 Designation . 7 6 Marking . 7 7 Technical specification . 8
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