prEN 3155-065

• Abstract:

  This document specifies the required characteristics, tests and tooling applicable to male electrical contacts, type A, crimp, class S, size 8, used in elements of connection in accordance with EN 3155-002 (this contact can be fitted in connectors EN 3645 series and EN 4165 series).; It can be used together with EN 3155-001.; The associated female contacts are specified in EN 3155-083.

• Status: Not Published
• Publication Date: 22-Nov-2027
• 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: 4060 - Closure of enquiry - Enquiry
• Start Date: 24-Sep-2026
• Completion Date: 24-Sep-2026
• Ref Project: oSIST prEN 3155-065:2026 - Aerospace series - Electrical contacts used in elements of connection - Part 065: Contacts, electrical, male, type A, crimp, class S, size 8 Product standard

• Referred By: EN ISO 15614-9:2025 - Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 9: Underwater hyperbaric wet welding (ISO 15614-9:2025)
• Effective Date: 28-Jan-2026
• Referred By: EN ISO 25239-4:2020 - Friction stir welding - Aluminium - Part 4: Specification and qualification of welding procedures (ISO 25239-4:2020)
• Effective Date: 28-Jan-2026
• Referred By: EN ISO 25239-5:2020 - Friction stir welding - Aluminium - Part 5: Quality and inspection requirements (ISO 25239-5:2020)
• Effective Date: 28-Jan-2026
• Referred By: EN ISO 15614-2:2025 - Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 2: Arc welding of aluminium and its alloys (ISO 15614-2:2025)
• Effective Date: 28-Jan-2026
• Revises: EN 3155-065:2019 - Aerospace series - Electrical contacts used in elements of connection - Part 065: Contacts, electrical, male, type A, crimp, class S, size 8 - Product standard
• Effective Date: 28-Jan-2023

prEN 3155-065 is a CEN draft European Standard for aerospace electrical contacts, prepared by ASD-STAN. It specifies the required characteristics, tests and tooling for male, type A, crimp, class S, size 8 contacts used in elements of connection to EN 3155-002, and it points to compatible EN 3645 and EN 4165 connector families. It is written for engineers, manufacturers, test laboratories and buyers who need the product definition and qualification rules for this contact.

What does prEN 3155-065 specify?

prEN 3155-065 covers one product family: male electrical contacts, type A, crimp, class S, size 8, for aerospace connection elements. It is a product standard, so it brings together the product characteristics, the tooling needed to make and install the contact, and the test program used to verify it.

The document is organized into clause 1 Scope, clause 2 Normative references, clause 3 Terms and definitions, clause 4 Required characteristics, clause 5 Designation, clause 6 Marking and clause 7 Technical specification. Clause 4 is the core of the document and breaks the product definition into dimensions, colour marking, material and plating, cable compatibility, tooling, stripping, tests, gauges and qualification connector arrangements.

What are the key requirements of prEN 3155-065?

• 4.1 Specific characteristics - prEN 3155-065 states that type A contacts are for general application and that class S covers an operating temperature range from -65 °C to 200 °C. In practice, this tells the user which service environment the contact is intended for.

• 4.2 Dimensions and mass - The contact dimensions and mass shall follow Figure 1 and Table 1, and the dimensions apply after surface treatment. That matters because inspection has to be done on the finished contact, not the bare part.

• 4.3 Marking by colour code - The colour identification follows Table 2 and ISO 8843, with banding used to distinguish the size variants. This gives assemblers and inspectors a quick visual check before crimping or installation.

• 4.4 Material and surface treatment - The body is copper alloy and the protective plating is gold with an appropriate undercoat, with selective protection permitted. In practice, this fixes the material system and the coating expected for performance and durability.

• 4.5 to 4.7 Cable, tooling and stripping - The document limits the contact to the listed conductor sizes, requires crimping tools to conform to SAE-AS22520, requires insertion/extraction tools to conform to SAE-AS81969, and gives the stripping length to use. This is the production control section: the cable, tool and strip preparation must match the contact.

• 4.8 Tests and 4.10 qualification setup - Table 7 assigns the EN 2591 tests used for visual, dimensional, electrical, mechanical and environmental verification, including contact resistance, temperature endurance, rapid temperature change, shock, vibration, tensile strength, coating checks and magnetic permeability. Qualification tests use specified EN 3645 connector arrangements and the cable outlet described in TR 4865, so the test setup reflects the intended installation.

• 5 to 7 Identification and traceability - Clause 5 builds the designation from the contact reference, size, barrel size and delivery code, including sealing sleeve options. Clauses 6 and 7 then point marking and technical specification back to EN 3155-001, which keeps the general rules aligned across the EN 3155 series.

What terms does prEN 3155-065 define?

• male contact - The pin side of the connection, used here for the size 8 aerospace contact.
• type A - The general application contact type used by this product standard.
• class S - The temperature class for service from -65 °C to 200 °C.
• barrel size - The crimp barrel variant identified in the designation and used to match tooling and cable size.
• delivery code - The code that states whether a sealing sleeve is supplied, and which EN 4530-004 sleeve is fitted.
• AWG (American Wire Gauge) - The conductor size notation used alongside the ASD section code for the permitted cables.
• LSP (Length of Selective Protection) - The selective-protection length defined in EN 3155-001 and referenced in the dimensional figure.

Who uses prEN 3155-065?

prEN 3155-065 is used by aerospace connector and harness manufacturers, crimping-tool users, inspection teams, and qualification laboratories. It is also relevant to quality managers and buyers who need to specify the correct male contact, confirm the matching cable and tooling, and check that the product has the expected marking, tests and designation for EN 3155-002-based connection systems.

What changed in prEN 3155-065 from the previous edition?

prEN 3155-065 supersedes EN 3155-065:2019. The significant technical change stated in the document is the re-introduction of delivery codes for sealing sleeves in the designation in clause 5.

Which standards are used with prEN 3155-065?

Standard	What it contributes
EN 3155-001	Common technical specification, terms, marking and general rules used by this contact standard.
EN 3155-002	The list and utilization of contacts in the EN 3155 connection system.
EN 3155-083	The matching female contact for this size 8 contact.
EN 2083 and EN 4434	The copper or copper alloy conductors used for the permitted cables.
EN 2591 series	The test methods used for visual, dimensional, electrical, environmental and mechanical checks.
EN 3645-001 and EN 4165-001	Connector families named in the scope and qualification context.
ISO 8843	The identification system used for the colour code marking.
SAE-AS22520 and SAE-AS81969	The crimping and insertion/extraction tool specifications.
TR 4831 and TR 4865	The applicable crimp tools and the cable outlet arrangement for qualification testing.
EN 4530-004	The sealing sleeves referenced by the delivery codes.

What does the prEN 3155-065 document contain?

prEN 3155-065 contains one dimensional figure and several tables that define the product and its use. The tables cover dimensions and mass, colour marking, permissible cables, crimping tools, insertion/extraction tools, cable stripping length, the test matrix, and the designation code.

It also gives the qualification connector arrangement used for testing, so the contact is evaluated in a realistic assembly condition. For a reader, that means the document supports design selection, crimp-process setup, inspection, qualification and procurement for this aerospace contact family.

SLOVENSKI STANDARD
01-september-2026
Aeronavtika - Električni kontakti za uporabo v veznih elementih - 065. del:
Kontakti, električni, moški, tip A, nagubani, razred S, velikost 8 - Standard za
proizvod
Aerospace series - Electrical contacts used in elements of connection - Part 065:
Contacts, electrical, male, type A, crimp, class S, size 8 Product standard
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen -
Teil 065: Elektrische Stiftkontakte, Typ A, crimpbar, Klasse S, Größe 8 - Produktnorm
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie
065 : Contacts électriques, mâles, type A, à sertir, classe S, taille 8 - Norme de produit
Ta slovenski standard je istoveten z: prEN 3155-065
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 2026
ICS 49.060 Will supersede EN 3155-065:2019
English Version
Aerospace series - Electrical contacts used in elements of
connection - Part 065: Contacts, electrical, male, type A,
crimp, class S, size 8 Product standard
Luft- und Raumfahrt - Elektrische Kontakte zur
Verwendung in Verbindungselementen - Teil 065:
Elektrische Stiftkontakte, Typ A, crimpbar, Klasse S,
Größe 8 - 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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3155-065:2026 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 . 6
4.1 Specific characteristics . 6
4.2 Dimensions and mass . 6
4.3 Marking by colour code . 7
4.4 Material, surface treatment . 7
4.5 Permissible cables . 7
4.6 Tooling . 8
4.6.1 Crimping tools . 8
4.6.2 Insertion/Extraction tools . 8
4.7 Cable stripping . 8
4.8 Tests . 9
4.9 Gauges . 11
4.10 Connectors for qualification tests . 11
5 Designation . 11
6 Marking . 12
7 Technical specification . 12
Bibliography . 13

European foreword
This document (prEN 3155-065:2026) has been prepared 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 3155-065:2019.
EN 3155-065:2019:
— re-introduction of delivery codes for sealing sleeves in the designation (Clause 5).
1 Scope
This document specifies the required characteristics, tests and tooling applicable to male electrical
contacts, type A, crimp, class S, size 8, used in elements of connection in accordance with EN 3155-002
(this contact can be fitted in connectors EN 3645 series and EN 4165 series).
It can be used together with EN 3155-001.
The associated female contacts are specified in EN 3155-083.
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 or copper alloy conductors for electrical cables — Product standard
EN 2591-101, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 101: Visual examination
EN 2591-102, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 102: Examination of dimensions and mass
EN 2591-202, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 202: Contact resistance at rated current
EN 2591-204, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 204: Discontinuity of contacts in the microsecond range
EN 2591-210, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 210: Electrical overload
EN 2591-301, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 301: Endurance at temperature
EN 2591-305, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 305: Rapid change of temperature
EN 2591-307, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 307: Salt mist
EN 2591-319, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 319: Gastightness of solderless wrapped connections
EN 2591-402, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 402: Shock
EN 2591-403, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 403: Sinusoidal and random vibration
EN 2591-406, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 406: Mechanical endurance
EN 2591-417, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 417: Tensile strength (crimped connection)
EN 2591-503, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 503: Contact deformation after crimping
EN 2591-507, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 507: Plating porosity
EN 2591-508, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 508: Measurement of thickness of coating on contacts
EN 2591-509, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 509: Adhesion of coating on contacts
EN 2591-513, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 513: Magnetic permeability
EN 3155-001, Aerospace series — Electrical contacts used in elements of connection — Part 001: Technical
specification
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 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-AS22520, Crimping tools, wire termination, general specification for
SAE-AS81969, Installing and removal tools, connector electrical contact, general specification for
TR 4831, Aerospace series — Applicable crimping tools for electrical contact product standards
EN 3155-065 and EN 3155-083
TR 4865, Aerospace series — Suitable cable outlet to be mated on EN 3645 connector (layout type: 21R48)
for the qualification of electrical contact product standards EN 3155-065 and EN 3155-083
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 standardiz
...