kSIST FprEN 3155-070:2025
(Main)Aerospace series - Electrical contacts used in elements of connection - Part 070: Contacts, electrical, male, type A, crimp, class S - Product standard
Aerospace series - Electrical contacts used in elements of connection - Part 070: Contacts, electrical, male, type A, crimp, class S - Product standard
This document specifies the required characteristics, tests and tooling applicable to male electrical contacts 070, 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, EN 3155 009 and EN 3155 071.
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 070: Elektrische Stiftkontakte, Typ A, crimpbar, Klasse S - Produktnorm
No Scope available
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 070 : Contacts électriques, mâles, type A, à sertir, classe S - Norme de produit
Le présent document spécifie les caractéristiques requises, les essais et l’outillage applicables aux contacts électriques mâles 070, de type A, à sertir, de classe S, utilisés dans les organes de connexion conformes à l’EN 3155 002.
Il est utilisé conjointement avec l’EN 3155 001.
Les contacts femelles associés sont spécifiés dans l’EN 3155 003, l’EN 3155 009 et l’EN 3155 071.
Aeronavtika - Električni kontakti za uporabo v veznih elementih - 070. del: Kontakti, električni, moški, tip A, nagubani, razred S - Standard za proizvod
General Information
- Status
- Not Published
- Public Enquiry End Date
- 02-May-2023
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 5020 - Formal vote (FV) (Adopted Project)
- Start Date
- 22-Jul-2025
- Due Date
- 09-Sep-2025
- Completion Date
- 23-Jul-2025
Relations
- Effective Date
- 19-Jan-2023
Overview
The kSIST FprEN 3155-070:2025 standard, developed by the European Committee for Standardization (CEN) under the Aerospace and Defence Industries Association of Europe (ASD-STAN), defines the specifications, tests, and tooling requirements for male electrical contacts classified as Type A, Crimp, Class S. These electrical contacts are integral components used in aerospace connector systems, conforming to the broader EN 3155 series covering elements of electrical connection. This product standard ensures high reliability, performance, and interoperability in aerospace electrical systems, operating within a temperature range of -65 °C to +200 °C.
Key Topics
Scope and Application
kSIST FprEN 3155-070:2025 applies exclusively to male electrical contacts designed for crimp termination in aerospace connectors. It complements EN 3155-001 (technical specification) and aligns with associated female contacts standards such as EN 3155-003, EN 3155-009, and EN 3155-071.Characteristics and Dimensions
The document specifies precise mechanical dimensions, mass, and material requirements. The contacts are manufactured from copper alloy with a gold surface treatment on an undercoat, ensuring conductivity and corrosion resistance. Color-coded markings provide easy identification of contact sizes and types according to ISO 8843.Permissible Cable Sizes
The standard details compatible conductor sizes, covering American Wire Gauge (AWG) sizes 26 to 20 for various cable sections, each rated for specific test currents, ensuring proper electrical performance.Tooling and Assembly
It mandates use of certified crimping tools compliant with SAE AS22520 and insertion/extraction tools meeting SAE AS81969 standards to guarantee secure and correct installation. Detailed instructions for cable stripping and crimping help maintain connection integrity.Testing and Quality Assurance
Extensive testing protocols derived from EN 2591 and EN 3155-001 cover electrical, mechanical, environmental, and durability aspects. Tests include contact resistance, thermal endurance at +200 °C, vibration, shock resistance, salt mist, ozone resistance, and fluid resistance. These tests confirm the contact’s reliability under harsh aerospace operating conditions.Marking and Identification
The contacts feature specific color codes and markings following standard guidelines for traceability and correct assembly in complex aerospace electrical systems.
Applications
kSIST FprEN 3155-070:2025 is essential for aerospace and defense industries requiring high-performance electrical connections in harsh environments. Practical applications include:
- Aircraft wiring systems where reliable, high-temperature tolerant connections are critical to system safety and performance.
- Spacecraft and satellite electrical assemblies that demand robust contacts able to withstand extreme thermal cycling.
- Aerospace connector manufacturing ensuring uniformity across components for modular, easily serviceable electrical systems.
- Maintenance and repairs in avionics and aerospace equipment where standardized contacts simplify replacements and upgrades.
By adhering to this standard, manufacturers and engineers can ensure consistent quality, compatibility, and safety in aerospace electrical connectors, reducing failure risks and lifecycle costs.
Related Standards
- EN 3155-001: Technical specification for electrical contacts in connection elements.
- EN 3155-002: Lists and utilization guidelines for electrical contacts.
- EN 3155-003, EN 3155-009, EN 3155-071: Specifications for the associated female electrical contacts, type A, crimp, class S.
- EN 2083 and EN 4434: Product standards for copper and copper alloy conductors used in aerospace cables.
- EN 4165: Modular aerospace rectangular connectors, specifying operating temperature ranges.
- SAE AS 22520 & AS 81969: Standards for crimping tools and insertion/extraction tools respectively.
Understanding and applying the kSIST FprEN 3155-070:2025 standard in conjunction with these related documents enhances electrical connection performance and supports compliance across the aerospace supply chain. Manufacturers, engineers, and quality assurance professionals benefit from its comprehensive guidance on product design, testing, and installation best practices.
Keywords: aerospace electrical contacts, male contacts, type A crimp contacts, class S contacts, connector standards, aerospace connectors, electrical wiring aerospace, crimping tools, EN 3155-070, ASD-STAN, aerospace electrical systems, high-temperature contacts, aerospace connector testing.
Frequently Asked Questions
kSIST FprEN 3155-070:2025 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Electrical contacts used in elements of connection - Part 070: Contacts, electrical, male, type A, crimp, class S - Product standard". This standard covers: This document specifies the required characteristics, tests and tooling applicable to male electrical contacts 070, 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, EN 3155 009 and EN 3155 071.
This document specifies the required characteristics, tests and tooling applicable to male electrical contacts 070, 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, EN 3155 009 and EN 3155 071.
kSIST FprEN 3155-070:2025 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.
kSIST FprEN 3155-070:2025 has the following relationships with other standards: It is inter standard links to SIST EN 3155-070:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
kSIST FprEN 3155-070:2025 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
oSIST prEN 3155-070:2023
01-april-2023
Aeronavtika - Električni kontakti za uporabo v veznih elementih - 070. del:
Kontakti, električni, moški, tip A, nagubani, razred S - Standard za proizvod
Aerospace series - Electrical contacts used in elements of connection - Part 070:
Contacts, electrical, male, type A, crimp, class S - Product standard
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen -
Teil 070: Elektrische Stiftkontakte, Typ A, crimpbar, Klasse S - Produktnorm
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie
070 : Contacts électriques, mâles, type A, à sertir, classe S - Norme de produit
Ta slovenski standard je istoveten z: prEN 3155-070
ICS:
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
oSIST prEN 3155-070:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 3155-070:2023
oSIST prEN 3155-070:2023
DRAFT
EUROPEAN STANDARD
prEN 3155-070
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2023
ICS 49.060 Will supersede EN 3155-070:2019
English Version
Aerospace series - Electrical contacts used in elements of
connection - Part 070: Contacts, electrical, male, type A,
crimp, class S - Product standard
Série aérospatiale - Contacts électriques utilisés dans Luft- und Raumfahrt - Elektrische Kontakte zur
les organes de connexion - Partie 070 : Contacts Verwendung in Verbindungselementen - Teil 070:
électriques, mâles, type A, à sertir, classe S - Norme de Elektrische Stiftkontakte, Typ A, crimpbar, Klasse S -
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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3155-070:2023 E
worldwide for CEN national Members.
oSIST prEN 3155-070:2023
prEN 3155-070:2023 (E)
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 . 6
4.4 Material, surface treatment . 6
4.5 Permissible cables . 6
4.6 Tooling . 7
4.6.1 Crimping tools . 7
4.6.2 Insertion/Extraction tools . 7
4.7 Cable stripping . 8
4.8 Tests . 8
4.9 Gauges . 11
5 Designation . 11
6 Marking . 12
7 Technical specification . 12
Bibliography . 13
oSIST prEN 3155-070:2023
prEN 3155-070:2023 (E)
European foreword
This document (prEN 3155-070:2023) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (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 3155-070:2019.
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.
oSIST prEN 3155-070:2023
prEN 3155-070:2023 (E)
1 Scope
This document specifies the required characteristics, tests and tooling applicable to male electrical
contacts 070, 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, EN 3155-009 and EN 3155-071.
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 3155-001, Aerospace series - Electrical contacts used in elements of connection - Part 001: Technical
Specification
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 tol
...
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