EN 3155-008:2026
(Main)Aerospace series - Electrical contacts used in elements of connection - Part 008: Contacts, electrical, male 008, type A, crimp, class S - Product standard
Aerospace series - Electrical contacts used in elements of connection - Part 008: Contacts, electrical, male 008, type A, crimp, class S - Product standard
This document specifies the required characteristics, tests and tooling applicable to male electrical contacts 008, type A, crimp, class 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 3155-003 and EN 3155-009.
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 008: Elektrische Stiftkontakte 008, Typ A, crimpbar, Klasse S - Produktnorm
Dieses Dokument legt die Anforderungen, Prüfungen und Werkzeuge für elektrische Stiftkontakte 008, Typ A, crimpbar, Klasse S, zur Verwendung in elektrischen Verbindungselementen in Übereinstimmung mit EN 3155 002 fest.
Es wird in Verbindung mit EN 3155 001 angewendet.
Die zugehörigen Buchsenkontakte sind in EN 3155 003 und EN 3155 009 festgelegt.
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 008 : Contacts électriques, mâles 008, type A, à sertir, classe S - Norme de produit
No Scope Available
Aeronavtika - Električni kontakti za uporabo v veznih elementih - 008. del: Električni kontakti, moški, tip A, nagubani, razred S - Standard za proizvod
Ta dokument določa zahtevane značilnosti, preskuse in orodja, ki se uporabljajo za moške električne kontakte 008, tip A, krimp, razred S, uporabljene v povezovalnih elementih v skladu z EN 3155-002.
Uporablja se skupaj z EN 3155-001.
Povezani ženski kontakti so določeni v EN 3155-003 in EN 3155-009.
General Information
- Status
- Published
- Publication Date
- 10-Mar-2026
- Technical Committee
- ASD-STAN - Aerospace
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 11-Mar-2026
- Completion Date
- 11-Mar-2026
Relations
- Effective Date
- 21-Dec-2022
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
- Effective Date
- 15-Apr-2026
Overview
FprEN 3155-008 is the CEN product standard for electrical male contacts, Type A, crimp, class S, used in aerospace elements of connection. The document defines required characteristics, tests and tooling for these contacts and is intended to be used together with EN 3155-001. Associated female contacts are covered by EN 3155-003 and EN 3155-009.
Key attributes documented include material and surface treatment (copper alloy body with gold plating and appropriate undercoat), marking by colour code (per ISO 8843), permissible cable sizes, dimensional tolerances, and compatibility with connector series such as EN 3645 and EN 4165.
Key Topics
- Scope and application: Male electrical contacts 008, Type A, crimp, class S for aerospace connectors; to be used with EN 3155-001 and EN 3155-002.
- Operating class: Class S contacts are rated for an operating temperature range from -65 °C to 200 °C.
- Materials & plating: Contact bodies are copper alloy with gold surface treatment over an appropriate undercoat; selective protection is permitted as defined by EN 3155-001.
- Dimensions & marking: Detailed dimensional tables, concentricity and mass limits, plus colour-band identification per ISO 8843 are provided for contact sizes covered by the standard.
- Permissible cables: Cable size and conductor recommendations are listed (AWG equivalents and ASD codes) to ensure correct crimp performance and current rating.
- Tooling & maintenance: Crimping tools conform to SAE-AS22520 (selector and positioner references provided) and insertion/extraction tools to SAE-AS81969. TR 4837 provides guidance for applicable crimping tools.
- Test requirements: Tests referenced from EN 2591 series and EN 3155-001 cover contact resistance, electrical continuity, environmental ageing, temperature cycling, salt mist, fluid resistance and endurance at temperature (including a 1 000 h test at 200 °C for certain tests).
Applications
These male Type A crimp contacts (class S) are intended for aerospace and defence electrical systems where high-temperature performance, reliability and interchangeability are essential. Typical uses include:
- Aircraft and spacecraft wiring harnesses requiring crimped removable contacts
- Connector assemblies conforming to EN 3645 or EN 4165 families
- Repair, maintenance and production processes needing qualified crimp tooling and extraction/insertion tools
Benefits for users include predictable mechanical and electrical performance, standardized identification (colour bands), and compatibility with specified tooling and test regimes to support qualification and supply-chain interchange.
Related Standards
- EN 3155-001 - Technical specification (use together with FprEN 3155-008)
- EN 3155-002 - Elements of connection interface reference
- EN 3155-003 / EN 3155-009 - Associated female contact product standards
- EN 2083 / EN 4434 - Conductor product standards referenced for permissible cables
- SAE-AS22520 / SAE-AS81969 - Crimping and insertion/extraction tool specifications
- EN 2591 (series) - Test methods referenced for electrical and environmental verification
For designers, manufacturers and quality engineers, FprEN 3155-008 provides the standardized requirements needed to ensure mechanical and electrical interoperability, proven high-temperature performance, and alignment with European aerospace connector practices.
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Frequently Asked Questions
EN 3155-008:2026 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Electrical contacts used in elements of connection - Part 008: Contacts, electrical, male 008, type A, crimp, class S - Product standard". This standard covers: This document specifies the required characteristics, tests and tooling applicable to male electrical contacts 008, type A, crimp, class 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 3155-003 and EN 3155-009.
This document specifies the required characteristics, tests and tooling applicable to male electrical contacts 008, type A, crimp, class 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 3155-003 and EN 3155-009.
EN 3155-008:2026 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 3155-008:2026 has the following relationships with other standards: It is inter standard links to EN 3155-008:2019, EN 2591-402:2012, EN 3645-002:2024, EN 3645-010:2019, EN 2083:2001, EN 2591-204:1996, EN 3645-012:2006, EN 3645-004:2019, EN 3645-013:2019, EN 3645-009:2019, EN 2591-307:2012, EN 2591-513:2002, EN 2591-201:1996, EN 2591-403:2025, EN 2591-301:1996. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3155-008:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2026
Aeronavtika - Električni kontakti za uporabo v veznih elementih - 008. del:
Električni kontakti, moški, tip A, nagubani, razred S - Standard za proizvod
Aerospace series - Electrical contacts used in elements of connection - Part 008:
Contacts, electrical, male, type A, crimp, class S - Product standard
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen -
Teil 008: Elektrische Stiftkontakte, Typ A, crimpbar, Klasse S - Produktnorm
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie
008 : Contacts électriques, mâles, type A, à sertir, classe S - Norme de produit
Ta slovenski standard je istoveten z: EN 3155-008:2026
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.
EN 3155-008
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2026
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 3155-008:2019
English Version
Aerospace series - Electrical contacts used in elements of
connection - Part 008: Contacts, electrical, male 008, type
A, crimp, class S - Product standard
Série aérospatiale - Contacts électriques utilisés dans Luft- und Raumfahrt - Elektrische Kontakte zur
les organes de connexion - Partie 008 : Contacts Verwendung in Verbindungselementen - Teil 008:
électriques, mâles 008, type A, à sertir, classe S - Norme Elektrische Stiftkontakte 008, Typ A, crimpbar, Klasse
de produit S - Produktnorm
This European Standard was approved by CEN on 25 August 2025.
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, Türkiye 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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3155-008:2026 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 6
4 Required characteristics . 6
4.1 Specific characteristics . 6
4.2 Dimensions and mass . 6
4.3 Marking by colour code . 10
4.4 Material, surface treatment . 11
4.5 Permissible cables . 11
4.6 Tooling . 13
4.6.1 Crimping tools . 13
4.6.2 Insertion/Extraction tools . 14
4.7 Cable stripping . 15
4.8 Tests . 15
4.9 Gauges . 19
5 Designation . 19
6 Marking . 19
7 Technical specification . 19
Bibliography . 20
European foreword
This document (EN 3155-008:2026) 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 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 2026, and conflicting national
standards shall be withdrawn at the latest by September 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 3155-008:2019.
EN 3155-008:2019:
— normative references updated;
— update of layouts: addition of 30R23 contact;
— 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.
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, Türkiye and the United Kingdom.
1 Scope
This document specifies the required characteristics, tests and tooling applicable to male electrical
contacts 008, type A, crimp, class S, used in elements of connection in accordance with EN 3155-002.
It is used together with EN 3155-001.
The associated female contacts are specified in EN 3155-003 and EN 3155-009.
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 2591-201, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 201: Contact resistance — Low level
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 2591-402, 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 2591-503, 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 3155-002, Aerospace series — Electrical contacts used in elements of connection — Part 002: List and
utilization of contacts
EN 3155-003, Aerospace series — Electrical contacts used in elements of connection — Part 003:
Contacts, electrical, female, type A, crimp, class S — Product standard
EN 3155-009, Aerospace series — Electrical contacts used in elements of connection — Part 009:
Contacts, electrical, female 009, type A, crimp, class S — Product standard
EN 3645 (all parts), Aerospace series — Connectors, electrical, circular, scoop-proof, triple start threaded
coupling, operating temperature 175 °C or 200 °C continuous
EN 3660-020, Aerospace series — Cable outlet accessories for circular and rectangular electrical and
optical connectors — Part 020: Cable outlet, style A, straight, unsealed, self-locking with clamp strain relief
for EN 3645 — Product standard
EN 4165 (all parts), Aerospace series — Connectors, electrical, rectangular, modular — Operating
temperature 175 °C continuous
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 4837, Aerospace series — Applicable crimping tools for electrical contact product standards
EN 3155-003, EN 3155-008 and EN 3155-009 for contact size 10 and barrel size 10 only
Published by Society of Automotive Engineers (SAE), available at: https://www.sae.org/.
Published as ASD-STAN TR, available at: https://www.asd-stan.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
Type A contacts are for general application and class S corresponds to an operating temperature range
from −65 °C to 200 °C.
4.2 Dimensions and mass
Dimensions and mass shall be in accordance with Figure 1 to Figure 7 and Table 1.
Dimensions and tolerances are given in millimetres and apply after surface treatment.
Key
1 colour bands, in accordance with Table 2
2 break or radius leading edge
3 radius A
4 See EN 3155-001 for Length of Selective Protection “LSP” definition.
5 authorized area of manufacturer identification
6 one side only, see detail Z
⌀ general concentricity
a
for size 22 and size 23
for all other sizes
Figure 1 — Connector contact
Figure 2 — Detail S – C
...
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