SIST EN 3155-045:2026
(Main)Aerospace series - Electrical contacts used in elements of connection - Part 045: Contacts, electrical, female, type A, double crimping, class T - Product standard
Aerospace series - Electrical contacts used in elements of connection - Part 045: Contacts, electrical, female, type A, double crimping, class T - Product standard
This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 045, type A, double crimping, class T, used in elements of connection according to EN 3155-002.
It is used together with EN 3155-001.
The associated male contacts are specified in EN 3155-044.
Double crimping contact has a barrel which is designed to crimp conductor and jacket of cable in two locations, one on the conductor and the other on the jacket. This way it protects the conductor from mechanical strengths.
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 045: Elektrische Buchsenkontakte, Typ A, doppelt gecrimpt, Klasse T - Produktnorm
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 045 : Contacts électriques, femelles, type A, double sertissage, classe T - Norme de produit
Le présent document spécifie les caractéristiques requises, les essais et l’outillage applicables aux contacts électriques femelles 045, de type A, double sertissage, de classe T, utilisés dans les organes de connexion conformes à l’EN 3155-002.
Il est utilisé conjointement avec l’EN 3155-001.
Les contacts mâles associés sont spécifiés dans l’EN 3155-044.
Le contact double sertissage a un fût qui permet de sertir le conducteur et la gaine du câble à deux endroits, l’un sur le conducteur et l'autre sur la gaine. Ce procédé protège le conducteur des forces mécaniques.
Aeronavtika - Električni kontakti za uporabo v spojnih elementih - 045. del: Kontakti, električni, ženski, tip A, dvojno stiskanje, razred T - Standard za proizvod
Ta dokument določa zahtevane značilnosti, preskuse in orodja, ki se uporabljajo za ženske električne kontakte 045, tip A, z dvojnim krimpanjem, razred T, ki se uporabljajo v elementih povezovanja v skladu z EN 3155-002.
Uporablja se skupaj z EN 3155-001.
Pripadajoči moški kontakti so določeni v EN 3155-044.
Kontakt z dvojnim krimpanjem ima cev, ki je zasnovana za krimpanje vodnika in plašča kabla na dveh mestih, eno na vodniku in drugo na plašču. Na ta način ščiti vodnik pred mehanskimi obremenitvami.
General Information
- Status
- Published
- Public Enquiry End Date
- 05-May-2024
- Publication Date
- 06-Apr-2026
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 27-Mar-2026
- Due Date
- 01-Jun-2026
- Completion Date
- 07-Apr-2026
Relations
- Effective Date
- 18-Mar-2026
- Effective Date
- 18-Mar-2026
- Effective Date
- 18-Mar-2026
- Effective Date
- 18-Mar-2026
- Effective Date
- 18-Mar-2026
- Effective Date
- 18-Mar-2026
- Effective Date
- 19-Jan-2023
Overview
SIST EN 3155-045:2026 is a European standard developed by CEN for the aerospace sector, specifying the characteristics, requirements, and tests for electrical contacts, specifically female 045, type A, double crimping, class T, used within connection elements in accordance with EN 3155-002. This product standard supports consistent performance, safety, and interoperability for electrical connectors in demanding aerospace environments.
The standard must be used alongside EN 3155-001 and is directly related to male contacts defined in EN 3155-044. A distinctive aspect of the specified contacts is the double crimping barrel, designed to secure both the conductor and the cable jacket, thus improving the mechanical protection of the electrical connection. Compliance with SIST EN 3155-045:2026 ensures that electrical connectors meet rigorous aerospace industry requirements for reliability and robustness.
Key Topics
- Contact Specification: Defines required dimensions, materials, plating, and identification marking (including color codes as per ISO 8843).
- Double Crimping: Ensures secure termination on both conductor and insulation for enhanced mechanical strength and vibration resistance.
- Performance Testing: Includes comprehensive test regimes aligned with the EN 2591 series (e.g., contact resistance, endurance at temperature, vibration, shock, salt mist, adhesive coating, stripping force, etc.).
- Compatibility: Specifies tooling requirements (crimping and extraction), permissible cables (sizes and types), and reference to matching male contacts (EN 3155-044).
- Compliance and Marking: Details on marking, designation, and conformity to ensure traceability and repeatability in aerospace supply chains.
- Temperature and Durability: Addresses high-temperature operation and exposure to harsh aerospace operating conditions.
Applications
SIST EN 3155-045:2026 is critical for organizations involved in the design, manufacturing, assembly, maintenance, and testing of aerospace electrical connectors and wiring systems. Typical practical applications include:
- Aerospace Electrical Systems: Used in the assembly of electrical harnesses, avionics, and control systems requiring reliable power and signal connections.
- Aircraft Manufacturing & Maintenance: Ensures uniform connector quality and compatibility across different platforms and maintenance programs.
- Connector Assembly Production: Guides manufacturers and suppliers in producing compliant female contacts for integration into standard aerospace connectors.
- Quality Assurance & Testing: Used by quality engineers for qualification, inspection, and verification of connector components against industry standards.
These contacts are particularly valued where mechanical strength and electrical integrity are critical, supporting operational reliability under extreme conditions such as high vibration, wide temperature ranges, and potential mechanical stress.
Related Standards
- EN 3155-001: Aerospace series - Electrical contacts for connection elements - Technical specification (companion document).
- EN 3155-002: List and utilization of contacts for elements of connection in aerospace.
- EN 3155-044: Specifies the corresponding male 044, type A, double crimping, class T contacts.
- EN 2591 series: Comprehensive testing methods for electrical and optical connection elements, covering visual inspection, resistance, endurance, vibration, and more.
- EN 2083 & EN 4434: Standards for copper and copper alloy conductors, referenced for cable and conductor compatibility.
- ISO 8843: Identification system for aircraft crimp-removable contacts.
- SAE AS22520 & SAE AS81969: Standards specifying crimp, insertion, and removal tools for aerospace contacts.
Practical Value
By adopting SIST EN 3155-045:2026, aerospace stakeholders gain:
- Consistent product quality across supply chains
- Increased connector reliability
- Enhanced mechanical and electrical performance
- Interoperability between components and systems
- Assurance of compliance with international aerospace standards
Utilizing this standard is essential for meeting regulatory, operational, and safety requirements in the aerospace electric equipment and systems sector.
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Frequently Asked Questions
SIST EN 3155-045:2026 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Electrical contacts used in elements of connection - Part 045: Contacts, electrical, female, type A, double crimping, class T - Product standard". This standard covers: This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 045, type A, double crimping, class T, used in elements of connection according to EN 3155-002. It is used together with EN 3155-001. The associated male contacts are specified in EN 3155-044. Double crimping contact has a barrel which is designed to crimp conductor and jacket of cable in two locations, one on the conductor and the other on the jacket. This way it protects the conductor from mechanical strengths.
This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 045, type A, double crimping, class T, used in elements of connection according to EN 3155-002. It is used together with EN 3155-001. The associated male contacts are specified in EN 3155-044. Double crimping contact has a barrel which is designed to crimp conductor and jacket of cable in two locations, one on the conductor and the other on the jacket. This way it protects the conductor from mechanical strengths.
SIST EN 3155-045:2026 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.
SIST EN 3155-045:2026 has the following relationships with other standards: It is inter standard links to SIST EN 3155-002:2024, SIST EN 3682-001:2014, SIST EN 3155-044:2020, SIST EN 3155-044:2009, SIST EN 2591-220:2006, SIST EN 2591-227:2015, SIST EN 3155-045:2020. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 3155-045:2026 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 spojnih elementih - 045. del:
Kontakti, električni, ženski, tip A, dvojno stiskanje, razred T - Standard za proizvod
Aerospace series - Electrical contacts used in elements of connection - Part 045:
Contacts, electrical, female, type A, double crimping, class T - Product standard
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen -
Teil 045: Elektrische Buchsenkontakte, Typ A, doppelt gecrimpt, Klasse T - Produktnorm
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie
045 : Contacts électriques, femelles, type A, double sertissage, classe T - Norme de
produit
Ta slovenski standard je istoveten z: EN 3155-045:2026
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 3155-045
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2026
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 3155-045:2019
English Version
Aerospace series - Electrical contacts used in elements of
connection - Part 045: Contacts, electrical, female 045,
type A, double crimping, class T - Product standard
Série aérospatiale - Contacts électriques utilisés dans Luft- und Raumfahrt - Elektrische Kontakte zur
les organes de connexion - Partie 045 : Contacts Verwendung in Verbindungselementen - Teil 045:
électriques, femelles 045, type A, double sertissage, Elektrische Buchsenkontakte 045, Typ A, doppelt
classe T - Norme de produit gecrimpt, Klasse T - Produktnorm
This European Standard was approved by CEN on 5 October 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 3155-045:2026 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 Dimensions and mass . 6
4.2 Marking by colour code . 9
4.3 Material, protective plating . 9
4.4 Permissible cables . 9
4.5 Cable stripping . 9
4.6 Tooling . 10
4.7 Tests . 10
4.8 Gauges . 14
5 Designation . 14
6 Marking . 14
7 Technical specification . 14
Bibliography . 15
European foreword
This document (EN 3155-045:2026) 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. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 3155-045:2019.
EN 3155-045:2019:
— normative references updated;
— figure of colour identification bands corrected in Table 2;
— 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 female electrical
contacts 045, type A, double crimping, class T, used in elements of connection in accordance with
EN 3155-002.
It is used together with EN 3155-001.
The associated male contacts are specified in EN 3155-044.
Double crimping contact has a barrel which is designed to crimp conductor and jacket of cable in two
locations, one on the conductor and the other on the jacket. This way it protects the conductor from
mechanical strengths.
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 2591-415, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 415: Test probe damage (female contact)
EN 2591-417, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 417: Tensile strength (crimped connection)
EN 2591-418, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 418: Gauge insertion/extraction forces (female contacts)
EN 2591-502, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 502: Restricted entry
EN 2591-503, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 503: Contact deformation after crimping
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 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 2997-014, 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 014: Square flange receptacle with integrated accessory — Product standard
EN 2997-016, 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 016: Plug with integrated accessory — Product standard
EN 3155-001:2025, Aerospace series — Electrical contacts used in elements of connec
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