SIST EN 3155-075:2026

Aerospace series - Electrical contacts used in elements of connection - Part 075: Contacts, electrical, quadrax, size 8, female, type E, crimp, class R - Product standard

This document specifies the required characteristics, tests and tooling applicable to female electrical quadrax contacts, shielded, size 8, type E characteristic impedance 100 Ω, crimp, class R, 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 3155-074.

Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 075: Elektrische quadraxiale Buchsenkontakte, Größe 8, Typ E, crimpbar, Klasse R - Produktnorm

No Scope available

Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 075: Contacts électriques, quadrax, taille 8, femelles, type E, à sertir, classe R - Norme de produit

Le présent document spécifie les caractéristiques requises, les essais et l’outillage applicables aux contacts électriques quadrax femelles, blindés, de taille 8, de type E, d’impédance caractéristique de 100 Ω, à sertir, de classes P, R et S, 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 3155-074.

Aeronavtika - Električni kontakti za uporabo v veznih elementih - 075. del: Kontakti, električni, quadrax, velikost 8, ženski, tip E, nagubani, razred R - Standard za proizvod

Ta dokument določa zahtevane lastnosti, preskuse in orodja, ki se uporabljajo za ženske električne quadrax kontakte, oklopljene, velikosti 8, tip E, karakteristična impedanca 100 Ω, krimp, razred R, ki se uporabljajo v elementih povezave v skladu z EN 3155-002.
Uporablja se skupaj z EN 3155-001.
Pripadajoči moški kontakti so določeni v EN 3155-074.

General Information

• Status: Published
• Public Enquiry End Date: 19-Sep-2023
• Publication Date: 06-Apr-2026
• ICS: 49.060 - Aerospace electric equipment and systems
• 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
• Ref Project: EN 3155-075:2026 - Aerospace series - Electrical contacts used in elements of connection - Part 075: Contacts, electrical, quadrax, size 8, female, type E, crimp, classes P, R and S - Product standard

Relations

• Referred By: SIST EN 2591-220:2006 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 220: Contact/conductor joint ageing by current and temperature cycling
• Effective Date: 18-Mar-2026
• Referred By: SIST EN 3155-074:2009 - Aerospace series - Electrical contacts used in elements of connection - Part 074: Contacts, electrical, quadrax, size 8, male, type E, crimp, class R - Product standard
• Effective Date: 18-Mar-2026
• Referred By: SIST EN 4530-002:2024 - Aerospace series - Sealing sleeves used in elements of connection - Part 002: List and utilization of sealing sleeves
• Effective Date: 18-Mar-2026
• Referred By: SIST EN 3682-001:2014 - Aerospace series - Connectors, plug and receptacle, electrical, rectangular, interchangeable insert type, rack to panel, operating temperature 150 °C continuous - Part 001: Technical specification
• Effective Date: 18-Mar-2026
• Referred By: SIST EN 3155-002:2024 - Aerospace series - Electrical contacts used in elements of connection - Part 002: List and utilization of contacts
• Effective Date: 18-Mar-2026
• Referred By: SIST EN 2591-227:2015 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 227: Partial discharges test
• Effective Date: 18-Mar-2026
• Referred By: SIST EN 17926:2024 - Privacy Information Management System per ISO/IEC 27701 - Refinements in European context
• Effective Date: 28-Jan-2026
• Referred By: SIST-TS CEN ISO/IEC/TS 27006-2:2023 - Requirements for bodies providing audit and certification of information security management systems - Part 2: Privacy information management systems (ISO/IEC/TS 27006-2:2021)
• Effective Date: 28-Jan-2026
• Revises: SIST EN 3155-075:2022 - Aerospace series - Electrical contacts used in elements of connection - Part 075: Contacts, electrical, quadrax, size 8, female, type E, crimp, class R - Product standard
• Effective Date: 07-Jun-2023
• Revises: SIST EN 3155-075:2009 - Aerospace series - Electrical contacts used in elements of connection - Part 075: Contacts, electrical, quadrax, size 8, female, type E, crimp, class R - Product standard
• Effective Date: 19-Jan-2023

Overview

FprEN 3155-075 (prEN 3155-075:2023) is a CEN product standard in the Aerospace series that specifies requirements for female quadrax electrical contacts, shielded, size 8, type E, crimp, class R. It covers required characteristics, dimensions, materials, marking, permissible cables, crimping/wiring procedures, tooling and qualification/acceptance tests for 100 Ω quadrax contacts used in aerospace connection elements. This standard is used together with EN 3155-001 (technical specification) and pairs with the associated male contact in EN 3155-074.

Key topics and technical requirements

• Contact type & performance: Shielded quadrax, type E, characteristic impedance 100 Ω, class R (operating range −65 °C to 150 °C).
• Dimensions & mass: Detailed dimensional drawings and tolerances (figures/tables in the standard); maximum contact mass: 6 g.
• Materials & finish:
  • Body: copper alloy.
  • Protective coating: gold with appropriate undercoat (selective protection permitted) per EN 3155-001.
  • Dielectric: PTFE fluoropolymer or equivalent.
• Permissible cable types: Designed for Star Quad 100 Ω cables per EN 3375 series (KD, KL, KH); ferrule dimensions and optional shrink sleeve guidance provided.
• Wiring & crimping: Cable preparation and crimp sequence illustrated; spacer and correct circular location required. Specified crimp dies and positioners (e.g., M22520 series) and an extraction tool (M81969/14–06) are listed.
• Marking & identification: Manufacturer name/trademark and date of manufacture (year-week) on the contact body; pin location/angular key definitions included.
• Testing & qualification: Test programs follow EN 2591 series and EN 3155-001 and include contact resistance, insulation resistance, voltage proof, insertion loss (EN 2591-222), characteristic impedance (EN 2591-223), VSWR, shielding effectiveness, surface transfer impedance, mechanical endurance, thermal aging (1 000 h at 125 °C or 150 °C), shock and vibration, tensile strength of crimp, and gauge insertion/extraction forces.

Practical applications and users

This standard is intended for:

• Aerospace connector and contact manufacturers designing or producing quadrax female crimp contacts.
• Wiring harness and cable assembly suppliers specifying crimp tooling and procedures for 100 Ω digital data links.
• Aerospace OEMs and system integrators specifying connector components for avionics and high-speed data transmission.
• Test laboratories performing qualification and acceptance testing to EN 2591 methods.
• Procurement and quality teams referencing product standards for certification and interchangeability.

Related standards

• EN 3155-001 - Technical specification (used together with this document)
• EN 3155-074 - Associated male quadrax contact specification
• EN 2591 (all parts) - Test methods for electrical/optical connection elements
• EN 3375-008 / -011 / -012 - Star Quad 100 Ω cable product standards

Keywords: FprEN 3155-075, quadrax contact, aerospace electrical contacts, size 8, type E, crimp contact, 100 Ω, class R, EN 3155-001, EN 3155-074, insertion loss, characteristic impedance, crimp tooling.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2026
Aeronavtika - Električni kontakti za uporabo v veznih elementih - 075. del:
Kontakti, električni, quadrax, velikost 8, ženski, tip E, nagubani, razred R -
Standard za proizvod
Aerospace series - Electrical contacts used in elements of connection - Part 075:
Contacts, electrical, quadrax, size 8, female, type E, crimp, class R - Product standard
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen -
Teil 075: Elektrische quadraxiale Buchsenkontakte, Größe 8, Typ E, crimpbar, Klasse R
- Produktnorm
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie
075: Contacts électriques, quadrax, taille 8, femelles, type E, à sertir, classe R - Norme
de produit
Ta slovenski standard je istoveten z: EN 3155-075:2026
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 3155-075
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2026
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 3155-075:2022
English Version
Aerospace series - Electrical contacts used in elements of
connection - Part 075: Contacts, electrical, quadrax, size 8,
female, type E, crimp, classes P, R and S - Product standard
Série aérospatiale - Contacts électriques utilisés dans Luft- und Raumfahrt - Elektrische Kontakte zur
les organes de connexion - Partie 075 : Contacts Verwendung in Verbindungselementen - Teil 075:
électriques, quadrax, taille 8, femelles, type E, à sertir, Elektrische quadraxiale Buchsenkontakte, Größe 8,
classes P, R et S - Norme de produit Typ E, crimpbar, Klasse R - Produktnorm
This European Standard was approved by CEN on 29 September 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 3155-075:2026 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 Product identification . 8
4.3.1 Marking . 8
4.3.2 Contact location identification . 8
4.4 Material, surface treatment . 9
4.4.1 Material . 9
4.4.2 Protective coating . 9
4.4.3 Dielectric . 9
4.5 Permissible cables . 9
4.6 Wiring . 10
4.7 Tools . 11
4.8 Tests . 11
4.9 Gauge . 15
4.10 Connectors for qualification tests . 16
5 Designation . 16
6 Marking . 16
7 Technical specification . 16
Bibliography . 17

European foreword
This document (EN 3155-075:2026) 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 3155-075:2022.
EN 3155-075:2022:
— classes P and S added;
— normative references updated;
— test sequence updated to ensure performance measurements of insertion loss (EN 2591-222) and
impedance characteristic (EN 2591-223) tests;
— subclause 4.8.2 “Connectors for qualification tests” added;
— identity block in designation updated;
— 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
quadrax contacts, shielded, size 8, type E characteristic impedance 100 Ω, crimp, classes P, R and S 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 3155-074.
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 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 2591-205, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 205: Housing (shell) electrical continuity
EN 2591-206, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 206: Measurement of insulation resistance
EN 2591-212, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 212: Surface transfer impedance
EN 2591-221, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 221: Voltage Standing Wave Ratio (VSWR)
EN 2591-222, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 222: Insertion Loss (I.L.)
EN 2591-223, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 223: Measurement of characteristic impedance of a coaxial connector or contact
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 2591-306, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 306: Mould growth
EN 2591-307, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 307: Salt mist
EN 2591-314, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 314: Immersion at low air pressure
EN 2591-315, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 315: Fluid resistance
EN 2591-324, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 324: Interfacial sealing
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 2591-418, Aerospace series — Elements of electrical and optical connection — Test methods —
Part 418: Gauge insertion/extraction forces (female contacts)
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 3375-008, Aerospac
...