prEN 3155-074

SLOVENSKI STANDARD
01-september-2023
Aeronavtika - Električni kontakti za uporabo v veznih elementih - 074. del:
Kontakti, električni, quadrax, velikost 8, moški, tip E, nagubani, razred R -
Standard za proizvod
Aerospace series - Electrical contacts used in elements of connection - Part 074:
Contacts, electrical, quadrax, size 8, male, type E, crimp, class R - Product standard
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen -
Teil 074: Elektrische quadraxiale Stiftkontakte, Größe 8, Typ E, crimpbar, Klasse R -
Produktnorm
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie
074: Contacts électriques, quadrax, taille 8, mâles, type E, à sertir, classe R - Norme de
produit
Ta slovenski standard je istoveten z: prEN 3155-074
ICS:
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.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2023
ICS 49.060 Will supersede EN 3155-074:2009
English Version
Aerospace series - Electrical contacts used in elements of
connection - Part 074: Contacts, electrical, quadrax, size 8,
male, type E, crimp, class R - Product standard
Série aérospatiale - Contacts électriques utilisés dans Luft- und Raumfahrt - Elektrische Kontakte zur
les organes de connexion - Partie 074: Contacts Verwendung in Verbindungselementen - Teil 074:
électriques, quadrax, taille 8, mâles, type E, à sertir, Elektrische quadraxiale Stiftkontakte, Größe 8, Typ E,
classe R - Norme de produit crimpbar, Klasse R - Produktnorm
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3155-074:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Required characteristics . 5
4.1 Specific characteristics . 5
4.2 Dimensions and mass . 5
4.3 Marking . 7
4.3.1 Marking . 7
4.3.2 Pin location identification . 7
4.4 Material, surface treatment . 8
4.4.1 Material . 8
4.4.2 Protective coating . 8
4.4.3 Dielectric . 8
4.5 Permissible cables . 8
4.6 Wiring . 8
4.7 Tools . 10
4.8 Tests . 10
4.8.1 General. 10
4.8.2 Connectors for qualification tests . 14
5 Designation . 15
6 Marking . 15
7 Technical specification . 15
Bibliography . 16

European foreword
This document (prEN 3155-074:2023) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (ASD-STAN).
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 3155-074:2009.
EN 3155-074:2009:
— classes R and S added;
— normative references updated;
— optional design for orientation key added in Figure 1;
— dimensions in figures updated;
— specification of shield ferrule added (Figure 4);
— Table 4 “Tests”: tests EN 2591-201, −202, −222, −223, −301, −305 and −403 updated; tests
EN 2591-203, −213, −221, −316 and −402 added;
— Clause 4.8.2 “Connectors for qualification tests” added;
— identity block in designation updated;
— document editorially revised.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
1 Scope
This document specifies the required characteristics, tests and tooling applicable to male electrical
Quadrax contacts, shielded, size 8, type E characteristic impedance 100 Ω, crimp, class P, R and S, used in
elements of connection according to EN 3155-002.
It is used together with EN 3155-001.
The associated female contacts are specified in EN 3155-075.
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 2591 (all parts), Aerospace series — Elements of electrical and optical connection — Test methods
EN 3155-001, Aerospace series — Electrical contacts used in elements of connection — Part 001: Technical
specification
EN 3375-008, Aerospace series — Cable, electrical, for digital data transmission — Part 008: Single
braid — Star Quad 100 ohms — Type KD — Product standard
EN 3375-011, Aerospace series — Cable, electrical for digital data transmission — Part 011: Single braid —
Star Quad 100 ohms — Lightweight — Type KL — Product standard
EN 3375-012, Aerospace series — Cable, electrical, for digital data transmission — Part 012: Single
braid — Star Quad 100 ohms — 260 °C — Type KH — Product standard
EN 3645-001, Aerospace series — Connectors, electrical, circular, scoop-proof, triple start threaded
coupling, operating temperature 175 °C or 200 °C continuous — Part 001: Technical specification
EN 3660-063, Aerospace series — Cable outlet accessories for circular and rectangular electrical and
optical connectors — Part 063: Cable outlet, style K, straight, for heat shrinkable boot, shielded, sealed, self-
locking — Product standard
EN 3909, Aerospace series — Test fluids and test methods for electrical and optical components and sub-
assemblies
SAE AS22520, Crimping Tools, Wire Termination, General Specification For
SAE AS81969/14A, Installing and Removal Tools, Connector Electrical Contact, Type III, Class 2,
Composition B
Published by: SAE International (US) Society of Automotive Engineers, https://www.sae.org/.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 3155-001 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
4 Required characteristics
4.1 Specific characteristics
These type E contacts are contacts with screening feature and specified high frequency characteristics,
class P corresponds to an operating temperature range from −65 °C to 125 °C, class R corresponds to an
operating temperature range from −65 °C to 150 °C and class S corresponds to an operating temperature
range from −65 °C to 200 °C.
4.2 Dimensions and mass
Dimensions shall be in accordance with Figure 1, Figure 2 and Table 1.
Contact mass: 3,9 g max.
Dimensions and tolerances in millimetres

Key
1 orientation key
2 after crimping
3 shield ferrule
4 rear insulator
5 outer contact
6 front insulator
7 inner contacts (4)
9 manufacturer identification area
10 orientation key alternative design
11 end of inner contacts
Figure 1 — Configuration, dimensions and tolerances of male outer body
Dimensions and tolerances in millimetres

Key
1 min. see EN 3155-001 for Length of Selective Protection “LSP” definition
2 one side only
Figure 2 — Configuration of size 24 male signal contact
Table 1 — Dimensions and tolerances of male signal contact
⌀ A ⌀ B ⌀ D E ⌀ J ⌀ K L M r (typ)

0,32
0,85 1,47 0,62 5,03 1,24 0,52 3,1 3,58
0,90 1,51 0,65 5,13 1,32 0,62 3,3 3,99
4.3 Marking
4.3.1 Marking
Marking shall be applied on contact body. This marking shall include:
— the date of manufacture (year-week);
— the manufacturer’s name or trademark.
4.3.2 Pin location identification
See Figure 3. (Not printed on product.)

Key
1 angular positioning key
Figure 3 — Front face view
4.4 Material, surface treatment
4.4.1 Material
Body: Copper alloy.
4.4.2 Protective coating
Gold and appropriate undercoat, thickness of protection according to EN 3155-001, selective protection
permitted.
4.4.3 Dielectric
PTFE Fluoropolymer or equivalent.
4.5 Permissible cables
The cables shall be in accordance with Figure 4 and Table 2.
Dimensions and tolerances in millimetres

a) Shield ferrule b) Shield ferrule optional shape
Figure 4 — Cable Ferrule
Table 2 — Ferrule dimensions
⌀ A Cable style
EN 3375-008 (KD)
a
EN 3375-011 (KL)
4,18
4,12
EN 3375-012 (KH)
a
Additional shrinkable sleeve may be needed for KL
cable if its diameter is lower or equal to 4,10 mm.
4.6 Wiring
Preparation of the cable and crimping sequence is given in Figure 5 for information only.
a) Strip external layer of the cable.

b) Pull back the braid on/in the ferrule (optional). Strip each element of the quadrax cable.

c) Crimp the inner male contacts with tools on Table 3.

d) Install the
...