EN 3646-001:2007

Aerospace series - Connectors, electrical, circular, bayonet coupling, op-erating temperature 175 °C or 200 °C continuous - Part 001: Technical specification

This standard specifies the general characteristics, the conditions for qualification, acceptance and quality as-surance, as well as the test programmes and groups for bayonet coupling circular connectors, intended for use in an operating temperature range of  65 °C to 175 °C or 200 °C continuous according to the class and models.

Luft- und Raumfahrt - Elektrische Rundsteckverbinder mit Bajonettkupplung, Betriebstemperatur 175 °C oder 200 °C konstant - Teil 001: Technische Lieferbedingungen

Diese Norm legt die allgemeinen Eigenschaften und die Bedingungen für die Qualifikation, Abnahme und Qualitätssicherung sowie die Prüfprogramme und Prüfgruppen für Rundsteckverbinder mit Bajonettkupplung fest, die je nach Klasse und Modell für den Gebrauch in einem konstanten Betriebstemperaturbereich von
–65 °C bis 175 °C oder 200 °C bestimmt sind.

Série aérospatiale - Connecteurs électriques circulaires à accouplement par baïonnettes, température d'utilisation 175 °C ou 200 °C continu - Partie 001 : Spécification technique

Aeronavtika - Konektorji, električni, okrogli, bajonetno sklapljanje, stalna delovna temperatura 175 °C ali 200 °C - 001. del: Tehnična specifikacija

General Information

• Status: Withdrawn
• Publication Date: 27-Mar-2007
• Withdrawal Date: 17-Nov-2015
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2 - Electrical
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 30-Jun-2017
• Ref Project: SIST EN 3646-001:2009 - Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous - Part 001: Technical specification

Relations

• Replaced By: EN 3646-001:2015 - Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous - Part 001: Technical specification
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2009
$HURQDYWLND.RQHNWRUMLHOHNWULþQLRNURJOLEDMRQHWQRVNODSOMDQMHVWDOQDGHORYQD
WHPSHUDWXUDƒ&DOLƒ&GHO7HKQLþQDVSHFLILNDFLMD
Aerospace series - Connectors, electrical, circular, bayonet coupling, operating
temperature 175 °C or 200 °C continuous - Part 001: Technical specification
Luft- und Raumfahrt - Elektrische Rundsteckverbinder mit Bajonettkupplung,
Betriebstemperatur 175 °C oder 200 °C konstant - Teil 001: Technische
Lieferbedingungen
Série aérospatiale - Connecteurs électriques circulaires à accouplement par baïonnettes,
température d'utilisation 175 °C ou 200 °C continu - Partie 001 : Spécification technique
Ta slovenski standard je istoveten z: EN 3646-001:2007
ICS:
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 3646-001
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2007
ICS 49.060
English Version
Aerospace series - Connectors, electrical, circular, bayonet
coupling, operating temperature 175 °C or 200 °C continuous -
Part 001: Technical specification
Série aérospatiale - Connecteurs électriques circulaires à Luft- und Raumfahrt - Elektrische Rundsteckverbinder mit
accouplement par baïonnettes, température d'utilisation Bajonettkupplung, Betriebstemperatur 175 °C oder 200 °C
175 °C ou 200 °C continu - Partie 001 : Spécification konstant - Teil 001: Technische Lieferbedingungen
technique
This European Standard was approved by CEN on 5 June 2006.

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

Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3646-001:2007: E
worldwide for CEN national Members.

prEN 3646-001:2007 (E)
Contents Page
Foreword.3
0 Introduction.4
1 Scope .4
2 Normative references .4
3 Definitions .5
4 Description .5
5 Design .7
6 Definition drawings and masses.8
7 Tests.29
8 Quality assurance.39
9 Designation and marking.44
10 Delivery conditions.44
11 Packaging .44
12 Storage.44

prEN 3646-001:2007 (E)
Foreword
This document (EN 3646-001:2007) has been prepared by the AeroSpace and Defense Industries Association
of Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has re-
ceived 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 September 2007, and conflicting national standards shall be with-
drawn at the latest by September 2007.
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, Cyprus, Czech Repub-
lic, 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 the United Kingdom.
prEN 3646-001:2007 (E)
0 Introduction
This family of connectors is derived from MIL-C-26482G, series 2, the NAS 1599 bayonet connector with
which it is intermateable and which uses MIL-C-39029D for the contacts. It is particularly suitable for use on
aircraft applying EN 2282.
These connectors are distinguishable from MIL-C-26482G and NAS 1599 by:
 being of a lower mass;
 having reduced dimensions;
 accepting smaller cables.
1 Scope
This standard specifies the general characteristics, the conditions for qualification, acceptance and quality as-
surance, as well as the test programmes and groups for bayonet coupling circular connectors, intended for
use in an operating temperature range of − 65 °C to 175 °C or 200 °C continuous according to the class and
models.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated refer-
ences, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 263, Inch screw threads — General plan and selection for screws, bolts and nuts — Diameter range 0,06
to 6 in
ISO 4524-1, Metallic coatings — Test methods for electrodeposited gold and gold alloy coatings —
Part 1: Determination of coating thickness
EN 2266-002, Aerospace series — Cables, electrical, for general purpose — Operating temperatures between
− 55 °C and 200 °C — Part 002: General
EN 2282, Aerospace series — Characteristics of aircraft electrical supplies
EN 2591 (series), Aerospace series — Elements of electrical and optical connection — Test methods
EN 2591-100, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 100: General
EN 3155-001, Aerospace series — Electrical contacts used in elements of connection — Part 001: Technical
)
specification
EN 3197, Aerospace series — Installation of aircraft electrical and optical interconnection systems
EN 3646-002, Aerospace series — Connectors, electrical, circular, bayonet coupling, operating temperature
175 °C or 200 °C continuous — Part 002: Specification of performance and contact arrangements
EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace
standard parts
)
Published as ASD Prestandard at the date of publication of this standard.
prEN 3646-001:2007 (E)
2)
AS 1241C, Fire resistant phosphate ester hydraulic fluid for aircraft
3)
MIL-A-8243D, Anti-icing and deicing-defrosting fluids
3)
MIL-C-25769J, Cleaning compound, aircraft surface, alkaline water base fluids
MIL-C-26482G, Connector, electrical, (circular, Miniature, quick disconnect, environment resisting),
3)
receptacles and plugs, general specification for
3)
MIL-C-39029D, Contacts, electrical connector, general specification for
3)
MIL-HDBK-454, General guidelines for electronic equipment
3)
MIL-H-5606G, Hydraulic fluid, petroleum base; aircraft; missile and ordnance
3)
MIL-PRF-7808L, Lubricating oil, aircraft turbine engine, synthetic base
3)
MIL-PRF-7870C, Lubricating oil; general purpose, low temperature
3)
MIL-PRF-23699F, Lubricating oil, aircraft turbine engine, synthetic base, NATO Code Number O-156
NAS 1599, (Inactive) Connectors, general purpose, electrical, miniature circular, environment resisting, 200 °C
4)
maximum temperature
TR 4257, Aerospace series — Elements of electrical and optical connection — Relationship between the
5)
numbering systems for parts of EN 2591
3 Definitions
See EN 2591-100.
4 Description
4.1 General
Different variants of materials, housings and contact arrangements are provided according to the models de-
pending on the service conditions.
These connectors use crimp or solder contacts of sizes 20, 16 and 12.
The receptacles and plugs contain either male contacts or female contacts.
The contacts fitted in the model Y receptacles are exclusively of the male non removable solder type.

2) Published by: Society of Automotive Engineers, Inc. (SAE), 400 Commonwealth Drive, Warrendale, PA 15096-0001,
USA.
3) Published by: Department of Defense (DOD), the Pentagon, Washington, DC 20301, USA.
4) Published by: Aerospace Industries Association of America, Inc. (AIA), 1250 Eye Street, NW; Suite 1100, Washington,
DC 20005, USA.
5) Published as AECMA Technical Report at the date of publication of this standard.
prEN 3646-001:2007 (E)
The connectors are polarized by means of keyways and keys. When all the male contacts are in place, polari-
zation is obtained by different angular positions of the insulator in relation to the main slot or locking key and
shall occur before the coupling ring can carry out its function.
The visual check of coupling is obtained by viewing the locking pins through the inspection holes in the
coupling ring of the plug.
4.2 Receptacle
The receptacle may be attached by:
 square flange;
 nut, with sealing by O-ring at the attachment;
 round soldered or brazed flange for model Y connectors.
The receptacle contains five keyways in which the keys of the plug engage. The main keyway is fixed and is
wider than the others. Polarization is ensured by the different angular positions of the inserts.
4.3 Plug
The plug contains five keys which engage in the keyways of the receptacle. The main key is wider than the
others. Polarization is ensured by the different angular position of the inserts.
The coupling ring permanently fitted on the plug enables the connectors to be coupled and uncoupled. The in-
ternal guides of the coupling ring may be treated with a suitable lubricant compatible with the performance re-
quired in this standard.
The plug of models RS and WS is fitted with a grounding spring device ensuring electrical continuity between
the coupled connector housings.
4.4 Materials and surface treatment
4.4.1 General
When different 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 Housings
The material of the housing for the connectors and for the fittings may either be passivated stainless steel or
light alloy protected against corrosion by nickel, black anodized or cadmium plating (see EN 3646-002).
4.4.3 Contacts
Unless otherwise specified, the contacts shall be in ferrous alloy for models Y and in copper alloy for the other
models.
They shall be gold-plated on an appropriate undercoat. Selective protection is authorized provided that it is
sufficient to ensure that performance is respected.
Measurement of the thickness of the protective treatment shall be effected in accordance with ISO 4524-1.
prEN 3646-001:2007 (E)
4.4.4 Non-metallic materials
The materials used for insert, seals and grommets shall have a hardness and mechanical and electrical
characteristics consistent with the required use.
5 Design
5.1 Housings
The connector housings shall be in one unit. At the rear of the connector housing there shall be either three
teeth at 120° intervals or teeth around the entire periphery. These teeth shall accommodate cable outlets or
other fittings. The receptacle shall furthermore be fitted with an O-ring seal for sealing the coupled housings.
Receptacles for attachment by nut shall contain an O-ring seal. The nut shall have holes for the passage of
locking wire.
The threads shall conform to ISO 263.
The coupling ring shall be designed so that the male and female contacts engage when it is turned clockwise
and disengaged when it is turned counter-clockwise. The coupling ring shall be knurled.
The cable outlets shall compress the connector grommets without distorting it.
5.2 Inserts
The insert carrying the male and female contacts shall be in hard material and have a cr
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