EN 3645-001:2019

Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 001: Technical specification

This document specifies the general characteristics, the conditions for qualification, acceptance and quality assurance, as well as the test programs and groups for threaded ring coupling circular connectors, fire resistant, intended for use in a temperature range from − 65 °C to 175 °C continuous or 200 °C continuous according to the classes.

Luft- und Raumfahrt - Elektrische Rundsteckverbinder, kontaktgeschützt, dreigängige Gewinde-Schnellkupplung, Betriebstemperatur 175 °C oder 200 °C konstant - Teil 001: Technische Lieferbedingungen

Dieses Dokument legt die allgemeinen Eigenschaften, die Bedingungen für Qualifikation, Annahme und Qualitätssicherung sowie Prüfprogramme und -gruppen für Rundsteckverbinder mit Gewinde-Schnell-kupplung, feuerbeständig, bestimmt für die Anwendung in einem Temperaturbereich von −65 °C bis 175 °C konstant oder 200 °C konstant, entsprechend den Klassen, fest.

Série aérospatiale - Connecteurs électriques circulaires, à contacts protégés, à accouplement par filetage, à pas rapide à trois filets, température d'utilisation 175 °C ou 200 °C continu - Partie 001 : Spécification technique

La présente Norme spécifie les caractéristiques générales, les conditions de qualification, d’acceptation et d’assurance qualité, ainsi que les programmes et les groupes d’essais des connecteurs circulaires à accouplement par bague filetée, résistants au feu, utilisables dans une plage de températures comprises entre  65 °C et 175 °C continu, ou 200 °C continu suivant les classes.

Aeronavtika - Konektorji, električni, okrogli, zaščiten kontakt, hitra spojka z navojem, stalna delovna temperatura 175 °C ali 200 °C - 001. del: Tehnična specifikacija

Ta dokument določa splošne značilnosti, pogoje kvalifikacije, sprejemljivosti in zagotavljanja kakovosti ter preskusne programe in skupine za okrogle konektorje, priključene z navojnim obročkom, ognjevzdržne, za uporabo pri stalnih temperaturah med –65 °C in 175 °C ali pri stalni temperaturi 200 °C, odvisno od razreda.

General Information

• Status: Withdrawn
• Publication Date: 20-Aug-2019
• Withdrawal Date: 06-Sep-2022
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2 - Electrical
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 07-Sep-2022
• Ref Project: SIST EN 3645-001:2019 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 001: Technical specification

Relations

• Replaces: EN 3645-001:2015 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 001: Technical specification
• Effective Date: 28-Aug-2019
• Replaced By: EN 3645-001:2022 - Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded coupling, operating temperature 175 °C or 200 °C continuous - Part 001: Technical specification
• Effective Date: 14-Sep-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2019
Nadomešča:
SIST EN 3645-001:2015
Aeronavtika - Konektorji, električni, okrogli, zaščiten kontakt, hitra spojka z
navojem, stalna delovna temperatura 175 °C ali 200 °C - 001. del: Tehnična
specifikacija
Aerospace series - Connectors, electrical, circular, scoop-proof, triple start threaded
coupling, operating temperature 175 °C or 200 °C continuous - Part 001: Technical
specification
Luft- und Raumfahrt - Elektrische Rundsteckverbinder, kontaktgeschützt, dreigängige
Gewinde-Schnellkupplung, Betriebstemperatur 175 °C oder 200 °C konstant - Teil 001:
Technische Lieferbedingungen
Série aérospatiale - Connecteurs électriques circulaires, à contacts protégés, à
accouplement par filetage, à pas rapide à trois filets, température d'utilisation 175 °C ou
200 °C continu - Partie 001 : Spécification technique
Ta slovenski standard je istoveten z: EN 3645-001:2019
ICS:
31.220.10 Vtiči in vtičnice, konektorji Plug-and-socket devices.
Connectors
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3645-001
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2019
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 3645-001:2015
English Version
Aerospace series - Connectors, electrical, circular, scoop-
proof, triple start threaded coupling, operating
temperature 175 °C or 200 °C continuous - Part 001:
Technical specification
Série aérospatiale - Connecteurs électriques Luft- und Raumfahrt - Elektrische Rundsteckverbinder,
circulaires, à contacts protégés, à accouplement par kontaktgeschützt, dreigängige Gewinde-
filetage, à pas rapide à trois filets, température Schnellkupplung, Betriebstemperatur 175 °C oder 200
d'utilisation 175 °C ou 200 °C continu - Partie 001 : °C konstant - Teil 001: Technische Lieferbedingungen
Spécification technique
This European Standard was approved by CEN on 29 April 2019.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3645-001:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Description . 6
5 Design . 8
6 Definition drawings and masses . 9
7 Tests . 66
8 Quality assurance . 85
9 Designation and marking .103
10 Delivery conditions .104
11 Packaging .104
12 Storage .104

European foreword
This document (EN 3645-001:2019) 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 2020, and conflicting national standards shall be
withdrawn at the latest by February 2020.
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 3645-001:2015.
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
Introduction
This family of connectors is derived from MIL-DTL-38999 series III, with which it is intermateable and
interchangeable. It is particularly suitable for use in zones of severe environmental conditions on board
aircraft, applying EN 2282.
These connectors are distinguishable from MIL-DTL-38999 by:
 a compatibility with size 8 power and quadrax contacts;
 self-extinguishing materials;
 compatibility with reduced diameter cables;
 additional reinforced fuel resistant insert type;
 additional insert with grounded cavities.

1 Scope
This document specifies the general characteristics, the conditions for qualification, acceptance and quality
assurance, as well as the test programs and groups for threaded ring coupling circular connectors,
fire-resistant, intended for use in a temperature range from − 65 °C to 175 °C continuous or 200 °C
continuous according to the classes.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2267-002, Aerospace series — Cables, electrical, for general purpose — Operating temperatures between
− 55 °C and 260 °C — Part 002: General
EN 2282, Aerospace series — Characteristics of aircraft electrical supplies
EN 2346, Aerospace series — Fire resistant electrical cables — Dimensions, conductor resistance and mass
EN 2591-100 (all parts), Aerospace series — Elements of electrical and optical connection — Test methods —
Part 100: General
EN 3197, Aerospace series — Design and installation of aircraft electrical and optical interconnection
systems
EN 3645-002, Aerospace series — Connectors, electrical, circular, scoop-proof, triple start threaded coupling,
operating temperature 175 °C or 200 °C continuous — Part 002: Specification of performance and contact
arrangements
EN 3909, Aerospace series — Test fluids and test methods for electrical and optical components and sub-
assemblies
EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace
standard parts
ISO 68-1, ISO general purpose screw threads — Basic profile — Part 1: Metric screw threads
ISO 261, ISO general-purpose metric screw threads — General plan
ISO 262, ISO general-purpose metric screw threads — Selected sizes for screws, bolts and nuts
ISO 965-2, ISO general purpose metric screw threads — Tolerances — Part 2: Limit of sizes for general
purpose external and internal screw threads — Medium quality
ISO 4524-1, Metallic coatings — Test methods for electrodeposited gold and gold alloy coatings —
Part 1: Determination of coating thickness
MIL-DTL-38999K, Connectors, electrical, circular, miniature, high density, quick disconnect (bayonet,
threaded, and breech coupling), environment resistant, removable crimp and hermetic solder contacts,
1)
general specification for
1) Published by: DoD National (US) Mil. Department of Defense http://www.defenselink.mil/.
MIL-DTL-38999/62, Sealing boot, size 8, pin or socket, shielded crimp contacts, electrical connector, circular,
1)
metric
1)
MIL-HDBK-454, General guidelines for electronic equipment
1)
MIL-STD-1373, Screw-thread, modified, 60°, stub, double
1)
MIL-STD-1560B, Department of Defense interface standard: insert arrangements for
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 2591-100 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
4 Description
4.1 General
Different variants of materials, housings and contact arrangements are provided according to the classes
depending on the service conditions.
The pair of connectors is characterized:
 by shell to shell bottoming;
 by its triple threaded and self-locking coupling system;
 by plugs with shielding ring providing protection against radioelectrical interference;
 by the scoop-proof shells.
These connectors use the following contacts:
 crimped sizes 22, 20, 16, 12, 10 and 8;
 soldered (model Y) sizes 22, 20, 16 and 12;
 coaxial crimped or soldered sizes 16, 12 and 8;
For arrangements comprising the letter G or
Q, all contacts are grounded to the receptacle
 triaxial crimped or soldered size 8;
housing
 quadrax crimped size 8.
The receptacles and plugs contain either male contacts or female contacts.
The contacts fitted in the class Y receptacles are exclusively of the male solder type.
The connectors are polarized by means of keyways and keys; polarization shall be obtained before the male
contacts enter the insert of the female contacts and before the coupling ring is engaged. The position of the
keying arrangement is given in Table 5.
The visual check of coupling is obtained by masking of a red colour band on the receptacle.
4.2 Receptacle
The receptacle housing may be attached:
 square flange;
 nut, with sealing by O-ring at the attachment;
round soldered or brazed flange for class Y connectors.
4.3 Plug
The coupling ring is permanently fitted to the plug and allows coupling and uncoupling of the connectors.
The lanyard release version may also be uncoupled by pulling on the lanyard.
The plug is fitted with a self-locking mechanism and a grounding spring device ensuring electrical
continuity between the coupled connector housings.
An anti-decoupling device shall be provided to maintain complete coupling.
4.4 Materials and surface treatment
4.4.1 General
When dissimilar metals are in close contact, adequate protection against corrosion shall be used for the
electromotive force of the cell not to exceed 0,25 V (see EN 3197).
4.4.2 Housing
The material of the housings for the connectors and fittings may be either aluminium alloy, passivated
stainless steel or composite. Aluminium alloy and composite shall be plated as defined by the class
(composite coupling rings and Hex nut may be unplated) (see EN 3645-002).
4.4.3 Contacts
Unless otherwise specified, the non-removable contacts shall be in ferrous alloy for class Y and in copper
alloy for the other classes.
They shall be gold-plated on an appropriate undercoat. Selective protection is authorized provided that it
is sufficient to ensure that the specified performance is achieved.
Measurement of the thickness of the protective plating shall be effected in accordance with ISO 4524-1.
For removable contacts, see EN 3645-002.
4.4.4 Non-metallic materials
The materials used for insert, seals and grommets shall have a hardness and mechanical and
...