prEN 3155-004

Aerospace series - Electrical contacts used in elements of connection - Part 004: Contacts, electrical, male, type A, crimp, class T - Product standard

This document specifies the required characteristics, tests and tooling applicable to male electrical contacts 004, type A, crimp, class T, 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 005.
The contacts specified by this document are applicable for connector classes specified in EN 2997 series.
This document specifies two contact types (M and H) depending on connector class.

Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 004: Elektrische Stiftkontakte, Typ A, crimpbar, Klasse T - Produktnorm

Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 004 : Contacts électriques, mâles, type A, à sertir, classe T - Norme de produit

Aeronavtika - Električni kontakti za uporabo v veznih elementih - 004. del: Kontakti, električni, moški, tip A, nagubani, razred T - Standard za proizvod

General Information

• Status: Not Published
• Publication Date: 10-Aug-2025
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2/S 3 - Elements of Connection (Connectors, Contacts, rear accessories, crimping tools
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Start Date: 14-Nov-2024
• Completion Date: 14-Nov-2024
• Ref Project: oSIST prEN 3155-004:2024 - Aerospace series - Electrical contacts used in elements of connection - Part 004: Contacts, electrical, male, type A, crimp, class T - Product standard

Relations

• Revises: EN 3155-004:2019 - Aerospace series - Electrical contacts used in elements of connection - Part 004: Contacts, electrical, male, type A, crimp, class T - Product standard
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2024
Aeronavtika - Električni kontakti za uporabo v veznih elementih - 004. del:
Kontakti, električni, moški, tip A, nagubani, razred T - Standard za proizvod
Aerospace series - Electrical contacts used in elements of connection - Part 004:
Contacts, electrical, male, type A, crimp, class T - Product standard
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen -
Teil 004: Elektrische Stiftkontakte, Typ A, crimpbar, Klasse T - Produktnorm
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie
004 : Contacts électriques, mâles, type A, à sertir, classe T - Norme de produit
Ta slovenski standard je istoveten z: prEN 3155-004
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
February 2024
ICS 49.060 Will supersede EN 3155-004:2019
English Version
Aerospace series - Electrical contacts used in elements of
connection - Part 004: Contacts, electrical, male, type A,
crimp, class T - Product standard
Série aérospatiale - Contacts électriques utilisés dans Luft- und Raumfahrt - Elektrische Kontakte zur
les organes de connexion - Partie 004: Contacts Verwendung in Verbindungselementen - Teil 004:
électriques, mâles, type A, à sertir, classe T - Norme de Elektrische Stiftkontakte, Typ A, crimpbar, Klasse T -
produit 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3155-004:2024 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 . 5
4.1 Specific characteristics . 5
4.2 Dimensions and mass . 5
4.3 Marking by colour code . 7
4.4 Material, surface treatment . 8
4.5 Permissible cables . 9
4.6 Tooling . 10
4.6.1 Crimping tools . 10
4.6.2 Insertion/extraction tools . 11
4.7 Cable stripping . 11
4.8 Tests . 11
4.9 Gauges . 16
5 Designation . 16
6 Marking . 16
7 Technical specification . 16
Bibliography . 17

European foreword
This document (prEN 3155-004:2024) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 3155-004:2019.
This document includes the following significant technical changes with respect to EN 3155-004:2019:
— normative references updated;
— scope: extension of compatible connector classes in EN 2997 series;
— specification of contact types F and V in different clauses of the document;
— Figure 3 test sample configuration updated.
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
contacts 004, type A, crimp, class T, 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 3155-005.
The contacts specified by this document are applicable for connector classes specified in EN 2997 series.
This document specifies two contact types (M and H) depending on connector class.
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 2083, Aerospace series — Copper and copper alloys conductors for electrical cables — Product standard
EN 2591 (all parts), Aerospace series — Elements of electrical and optical connection — Test methods
EN 2997-001, Aerospace series — Connectors, electrical, circular, coupled by threaded ring, fire-resistant
or non fire-resistant, operating temperatures −65 °C to 175 °C continuous, 200 °C continuous, 260 °C
peak — Part 001: Technical specification
EN 3155-001, Aerospace series — Electrical contacts used in elements of connection — Part 001: Technical
Specification
EN 4434, Aerospace series — Copper or copper alloy lightweight conductors for electrical cables — Product
standard (Normal and tight tolerances)
ISO 8843, Aircraft — Crimp-removable contacts for electrical connectors — Identification system
SAE AS 22520, Crimping Tools, Wire Termination, General Specification For
SAE AS 81969/14, Installing and removal tools, connector electrical contact, type III, class 2,
composition B
SAE AS 81969/30, Installing and removal tools, connector electrical contact, type II, class 2, composition C,
for unwired contacts
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/

Published by: SAE International (US), https://www.sae.org/.
4 Required characteristics
4.1 Specific characteristics
Type A contacts are for general application and class T corresponds to an operating temperature range
from −65 °C to 260 °C.
4.2 Dimensions and mass
Dimensions and mass shall be according to Figure 1 and Figure 2 and Table 1.
Dimensions and tolerances are given in millimetres and apply after surface treatment.

Key
1 white dot
2 colour bands, according to Table 2
3 break allowed
4 one side only
5 according to EN 3155-001 for Length of Selective Protection “LSP” definition
6 approximately spherical
Figure 1 — Dimensions
Figure 2 — Barrel, contacts 16–18 and 12–12
Table 1 — Dimensions
Size A B C D E F G H J K L M N P S T Mass
g
Contact Barrel
max.        max.
13,94 4,34 3,30 0,84 1,98 1,04 1,27 1,98 2,62 1,68 4,75 1,73 0,81 0,51
20 20 18,29 — 0,30
13,79 4,06 3,17 0,74 1,93 0,99 1,22 1,93 2,54 1,57 3,94 1,35 0,66 0,23
13,94 4,34 3,30 0,84 1,98 1,04 1,35 1,98 2,62 1,68 4,75 1,73 0,81 0,51
20 18 18,29 — 0,30
13,79 4,06 3,17 0,74 1,93 0,99 1,30 1,93 2,54 1,57 3,94 1,35 0,66 0,23
14,33 6,53 3,30 1,22 2,62 1,61 1,73 2,62 3,38 2,26 7,21 2,16 1,07 0,81
16 16 20,85 — 0,65
14,17 6,25 3,17 1,12 2,56 1,56 1,68 2,56 3,30 2,11 6,35 1,73 0,91 0,43
14,33 6,53 3,30 1,22 2,62 1,61 1,95 2,62 3,38 2,26 7,21 2,16 1,07 0,81
16 14 20,85 — 0,65
14,17 6,25 3,17 1,12 2,56 1,56 1,90 2,56 3,30 2,11 6,35 1,73 0,91 0,43
14,33 6,53 3,30 1,22 2,62 1,61 1,35 1,98 3,38 1,68 7,21 2,16 1,07 0,81 2,62
16 18 20,85 0,65
14,17 6,25 3,17 1,12 2,56 1,56 1,30 1,93 3,30 1,57 6,35 1,73 0,91 0,43 2,56
14,33 6,53 3,05 1,22 3,83 2,41 2,59 3,83 4,83 3,45 7,21 2,16 1,07 1,57 4,01
12 12 20,85 1,36
14,17 6,25 2,92 1,12 3,76 2,36 2,49 3,76 4,75 3,30 6,35 1,73 0,91 1,19 3,94
4.3 Marking by colour code
Marking by colour code shall be according to Table 2 and Table 3.
Table 2 — Type of contact M
Colour identification bands
according to ISO 8843
Size
a
Contact Barrel Band 1 Band 2 Dot
① ②
20 20 Red Red White
b
20 18 Red Brown White
16 16 Blue Blue White
c
16 14 Blue White White
b
16 18 Blue Brown White
12 12 Yellow Yellow White
As an alternative, when the two band colours are the same, only one
band of 2 mm width minimum may be applied.
a
The width of the band 2 shall be twice the width of the band 1.
b
Violet colour band not to be used for new manufacture.
c
Orange colour band not to be used for new manufacture.
Table 3 — Type of contact H
Colour identification bands
according to ISO 8843
Size
a
Contact Barrel Band 1 Band 2 Dot
① ②
20 20 Red Red Green
b
20 18 Red Brown Green
16 16 Blue Blue Green
c
16 14 Blue White Green
b
16 18 Blue Brown Green
12 12 Yellow Yellow Green
As an alternative, when the two band colours are the same, only one
band of 2 mm width minimum may be applied.
a
The width of the band 2 shall be twice the width of the band 1.
b
Violet colour band not to be used for new manufacture.
c
Orange colour band not to be used for new manufacture.
4.4 Material, surface treatment
— Body material: copper alloy.
— Surface treatment: gold on appropriate undercoat in copper alloy. Thickness of protection not
specified. Selective protection acceptable. (According to Figure 1).
4.5 Permissible cables
Permissible cables shall be according to Table 4.
Table 4 — Permissible cables
Size Size of conductors
Rated test
a current
ASD code Section AWG
Contact Barrel
mm A
006 0,60 20 7,5
20 20 004 0,40 22 5,0
002 0,25 24 3,0
010 1,00 18 7,5
006 0,60 20 7,5
20 18
004 0,40 22 5,0
002 0,25 24 3,0
012 1,20 16 13,0
16 16 010 1,00 18 10,0
006 0,60 20 7,5
020 2,00 14 13,0
16 14 012 1,20 16 13,0
010 1,00 18 10,0
010 1,00 18 10,0
006 0,60 20 7,5
16 18
...