SIST EN 4165-021:2009
(Main)Aerospace series - Connectors, electrical, rectangular, modular - Operating temperature 175 °C continuous - Part 021: Coupling system keyway for plug - Product standard
Aerospace series - Connectors, electrical, rectangular, modular - Operating temperature 175 °C continuous - Part 021: Coupling system keyway for plug - Product standard
This standard defines the coupling system keyway for plug used in the family of rectangular electrical connectors.
The connector plugs corresponding to those coupling system keyways are defined in EN 4165-006, EN 4165-007, EN 4165-008 and EN 4165-009 and EN 4165-010.
Luft- und Raumfahrt - Elektrischer Rechtecksteckverbinder in modularer Bauweise - Betriebstemperatur 175 °C konstant - Teil 021: Kodierungssystem für freie Steckverbinder - Produktnorm
Diese Norm legt das Kodierungssystem für freie Steckverbinder fest, die in der Familie der elektrischen Rechtecksteckverbinder verwendet werden.
Die diesem Kodierungssystem entsprechenden freien Steckverbinder sind in EN 4165 006, EN 4165 007, EN 4165 008, EN 4165 009 und EN 4165 010 definiert.
Série aérospatiale - Connecteurs électriques modulaires - Températures d'utilisation 175 °C continu - Partie 021 : Système de détrompage pour fiches - Norme de produit
Aeronavtika - Konektorji, električni, pravokotni, modularni - Stalna delovna temperatura 175 °C - 021. del: Kodirani utor za gibljivo vtično povezavo - Standard za proizvod
General Information
- Status
- Published
- Publication Date
- 15-Mar-2009
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 08-Jan-2009
- Due Date
- 15-Mar-2009
- Completion Date
- 16-Mar-2009
Overview
EN 4165-021:2007 is a CEN product standard in the EN 4165 series that specifies the coupling system keyway for plug used with rectangular, modular electrical connectors designed for continuous operating temperatures up to 175 °C. It defines the physical keyway (coding) features that prevent mis-mating between complementary connectors in the EN 4165 family and provides the basis for plug identification and designation.
Key topics and requirements
- Scope: Covers the coupling system keyway for plugs within the EN 4165 rectangular modular connector family.
- Design characteristics: Keyway dimensions are given in millimetres and illustrated in the standard’s figures (reference drawings are provided; exact dimensions are in the document).
- Coding system: Defines key positions, colour identifiers and key codes used to distinguish plug types and prevent incorrect connections. Coloured paint is specified as visible only on the top face for visual identification.
- Designation: Example product identity format shown (e.g., EN4165P01) to standardize naming and ordering.
- Cross-reference to technical rules: Technical specifications and detailed testing/requirements are covered in EN 4165-001; this part focuses on the physical keyway/product definition.
- Normative references: Directly linked to other EN 4165 parts for specific plug types and series (see Related Standards).
Applications and users
EN 4165-021 is intended for organizations and professionals involved in the design, procurement, manufacture, installation and maintenance of high-reliability aerospace electrical systems:
- Aerospace OEMs and systems integrators specifying connector mating compatibility
- Connector and cable harness designers implementing anti-mis‑mate keying
- Manufacturers producing EN 4165-series plugs and mating components
- Maintenance, repair and overhaul (MRO) teams ensuring correct replacement parts
- Procurement and quality engineers enforcing standard compliance
- Test labs and certification bodies verifying fit and identification
Practical benefits include reliable mechanical coding to avoid electrical mis-connections, consistent product designation for supply-chain clarity, and compatibility across the EN 4165 connector family used in high-temperature aerospace applications.
Related standards
- EN 4165-001 - Technical specification for EN 4165 series
- EN 4165-006 / -007 / -008 / -009 / -010 - Product standards for corresponding plugs and rack/panel variants in the EN 4165 family
Keywords: EN 4165-021, coupling system keyway, aerospace connectors, rectangular modular connectors, 175 °C, plug keying, connector coding, EN 4165 series.
Frequently Asked Questions
SIST EN 4165-021:2009 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Connectors, electrical, rectangular, modular - Operating temperature 175 °C continuous - Part 021: Coupling system keyway for plug - Product standard". This standard covers: This standard defines the coupling system keyway for plug used in the family of rectangular electrical connectors. The connector plugs corresponding to those coupling system keyways are defined in EN 4165-006, EN 4165-007, EN 4165-008 and EN 4165-009 and EN 4165-010.
This standard defines the coupling system keyway for plug used in the family of rectangular electrical connectors. The connector plugs corresponding to those coupling system keyways are defined in EN 4165-006, EN 4165-007, EN 4165-008 and EN 4165-009 and EN 4165-010.
SIST EN 4165-021:2009 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.
SIST EN 4165-021:2009 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 - Elektrischer Rechtecksteckverbinder in modularer Bauweise - Betriebstemperatur 175 °C konstant - Teil 021: Kodierungssystem für freie Steckverbinder - ProduktnormSérie aérospatiale - Connecteurs électriques modulaires - Températures d'utilisation 175 °C continu - Partie 021 : Système de détrompage pour fiches - Norme de produitAerospace series - Connectors, electrical, rectangular, modular - Operating temperature 175 °C continuous - Part 021: Coupling system keyway for plug - Product standard49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 4165-021:2007SIST EN 4165-021:2009en,fr,de01-april-2009SIST EN 4165-021:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4165-021
April 2007 ICS 49.060 English Version
Aerospace series - Connectors, electrical, rectangular, modular -Operating temperature 175 °C continuous - Part 021: Coupling system keyway for plug - Product standard
Série aérospatiale - Connecteurs électriques modulaires - Températures d'utilisation 175 °C continu - Partie 021 : Système de détrompage pour fiches - Norme de produit
Luft- und Raumfahrt - Elektrischer Rechtecksteckverbinder in modularer Bauweise - Betriebstemperatur 175 °C konstant - Teil 021: Kodierungssystem für freie Steckeverbinder - Produktnorm This European Standard was approved by CEN on 30 September 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 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
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B-1050 Brussels © 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4165-021:2007: ESIST EN 4165-021:2009
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