EN 3646-003:2018
(Main)Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous - Part 003: Receptacle, square flange mounting - Product standard
Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous - Part 003: Receptacle, square flange mounting - Product standard
This European Standard defines the characteristics of square flange receptacles of 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 contact, filler plugs and rear accessories associated with this receptacle see EN 3646-002. For plugs and protective covers, see EN 3646-008 and EN 3646-009 respectively.
Luft- und Raumfahrt - Elektrische Rundsteckverbinder mit Bajonettkupplung, Betriebstemperatur 175 °C oder 200 °C konstant - Teil 003: 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 003: Embase à fixation par collerette carrée - Norme de produit
La présente Norme européenne définit les caractéristiques des embases à collerette carrée de la famille des connecteurs circulaires à accouplement par baïonnettes destinées à être utilisées dans une plage de température de – 65 °C à 175 °C ou 200 °C continu.
Elle s'applique aux modèles définis dans le Tableau 3.
Pour les contacts, les obturateurs et les accessoires arrière associés à ces embases, voir l’EN 3646-002. Pour les fiches et les bouchons de vol, voir respectivement les EN 3646-008 et EN 3646-009.
Aeronavtika - Konektorji, električni, okrogli, bajonetno sklapljanje, stalna delovna temperatura 175 °C ali 200 °C - 003. del: Spojnik s kvadratno montažno prirobnico - Standard za proizvod
Ta evropski standard določa lastnosti 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 dodatke kontaktov, slepih čepov in izhodov, povezane s to podlogo, glejte standard EN 3646-002. Za čepe in zaščitna prekrivala glej ustrezna standarda EN 3646-008 in EN 3646-009.
General Information
- Status
- Published
- Publication Date
- 14-Aug-2018
- Withdrawal Date
- 27-Feb-2019
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 2 - Electrical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 21-Jan-2024
- Completion Date
- 11-Feb-2026
Relations
- Effective Date
- 22-Aug-2018
- 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 3646-003:2018 is a CEN (ASD-STAN) product standard in the Aerospace series that defines the characteristics of square flange receptacles belonging to the family of bayonet coupling circular electrical connectors. It covers receptacles intended for continuous operation in the temperature range –65 °C up to 175 °C or 200 °C, and applies to the specific models listed in the standard (Table 3). The document supersedes EN 3646-003:2006 and was approved by CEN in December 2017 (published August 2018).
Key topics and technical requirements
- Connector family and scope
- Square flange mounted receptacles for bayonet-coupled circular connectors designed for high continuous operating temperatures.
- Dimensions and mass
- Detailed housing dimensions, tolerances and masses after surface treatment (see Figure 1 / Table 1).
- Panel cut-out
- Recommended panel cut-out geometry and hole locations with tolerances (Figure 2 / Table 2).
- Materials and surface treatment
- Material/surface options and model variants (Table 3) including:
- Black anodized aluminium alloy shells (model A) - max 200 °C;
- Nickel-plated aluminium alloy shells with crimp RS contacts - max 200 °C;
- Olive green cadmium alloy shells with salt spray resistance 500 h and crimped contacts - max 175 °C.
- Material/surface options and model variants (Table 3) including:
- Designation and marking
- Standardized part-numbering format and identity block example; marking requirements on product and packaging (manufacturer part number, date of manufacture, trade name).
- References to performance and interfaces
- Electrical, mechanical and climatic characteristics, contact arrangements and compatible plugs/covers are defined in related parts EN 3646-001 and EN 3646-002, and product standards EN 3646-008 (plug) and EN 3646-009 (protective cover).
- Normative references
- Includes EN 3155-002 (contacts) and other EN 3646 series parts.
Applications and users
- Practical applications
- Use in aerospace and aviation electrical systems requiring reliable bayonet-coupled circular connectors that withstand elevated continuous temperatures (engine bays, environmental control zones, high-temperature avionics).
- Who uses this standard
- Connector manufacturers, aerospace OEMs, design and systems engineers, procurement and quality assurance teams, and certification authorities specifying or verifying connector mechanical, material and marking requirements.
Related standards
- EN 3646-001 - Technical specification (interfaces and general requirements)
- EN 3646-002 - Performance and contact arrangements
- EN 3646-008 - Plug - Product standard
- EN 3646-009 - Protective cover - Product standard
- EN 3155-002 - Electrical contact lists and utilization
Keywords: EN 3646-003:2018, square flange receptacle, bayonet coupling circular connectors, aerospace connectors, high-temperature connectors, connector dimensions, panel cut-out.
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Frequently Asked Questions
EN 3646-003:2018 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 003: Receptacle, square flange mounting - Product standard". This standard covers: This European Standard defines the characteristics of square flange receptacles of 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 contact, filler plugs and rear accessories associated with this receptacle see EN 3646-002. For plugs and protective covers, see EN 3646-008 and EN 3646-009 respectively.
This European Standard defines the characteristics of square flange receptacles of 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 contact, filler plugs and rear accessories associated with this receptacle see EN 3646-002. For plugs and protective covers, see EN 3646-008 and EN 3646-009 respectively.
EN 3646-003:2018 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 3646-003:2018 has the following relationships with other standards: It is inter standard links to EN 3646-003:2006, EN 3155-002:2024, EN 3646-001:2015, EN 3646-008:2006, EN 3646-002:2007, EN 3646-009:2015, EN 3660-002:2016, EN 3660-002:2006, EN 3646-009:2006, EN 3660-066:2017, EN 3660-034:2017. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3646-003:2018 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)
SLOVENSKI STANDARD
01-november-2018
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SIST EN 3646-003:2009
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Aerospace series - Connectors, electrical, circular, bayonet coupling, operating
temperature 175 °C or 200 °C continuous - Part 003: Receptacle, square flange
mounting - Product standard
Luft- und Raumfahrt - Elektrische Rundsteckverbinder mit Bajonettkupplung,
Betriebstemperatur 175 °C oder 200 °C konstant - Teil 003: 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 003: Embase à fixation par
collerette carrée - Norme de produit
Ta slovenski standard je istoveten z: EN 3646-003:2018
ICS:
31.220.10 9WLþLLQYWLþQLFHNRQHNWRUML Plug-and-socket devices.
Connectors
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 3646-003
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2018
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 3646-003:2006
English Version
Aerospace series - Connectors, electrical, circular, bayonet
coupling, operating temperature 175 °C or 200 °C
continuous - Part 003: Receptacle, square flange mounting
- Product standard
Série aérospatiale - Connecteurs électriques circulaires Luft- und Raumfahrt - Elektrische Rundsteckverbinder
à accouplement par baïonnettes, température mit Bajonettkupplung, Betriebstemperatur 175 °C oder
d'utilisation 175 °C ou 200 °C continu - Partie 003: 200 °C konstant - Teil 003: Fester Steckverbinder mit
Embase à fixation par collerette carrée - Norme de quadratischem Montageflansch - Produktnorm
produit
This European Standard was approved by CEN on 8 December 2017.
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-CENELEC 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-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3646-003:2018 E
worldwide for CEN national Members.
Contents 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 . 8
7 Technical specification . 8
European foreword
This document (EN 3646-003:2018) has been prepared by the Aerospace and Defence Industries
Association of Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
ASD, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2019, and conflicting national standards shall
be withdrawn at the latest by February 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 3646-003:2006.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland
...
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