SIST EN 4604-010:2026
(Main)Aerospace series - Cable, electrical, for signal transmission - Part 010 : Cable, coaxial, light weight, 50 ohms, 200 °C, type KX (light WD) - Product standard
Aerospace series - Cable, electrical, for signal transmission - Part 010 : Cable, coaxial, light weight, 50 ohms, 200 °C, type KX (light WD) - Product standard
This document specifies the required characteristics of a light weight coaxial cable, 50 Ω, type KX for use in aircraft electrical systems at operating temperature between −55 °C and 200 °C and specially for high frequency up to 6 GHz. Nevertheless, if needed, −65 °C is also acceptable as shown by rapid change of temperature test.
Luft- und Raumfahrt - Elektrische Leitungen für Signalübertragungen - Teil 010: Koaxialkabel, Leichtbauweise, 50 Ohm, 200 °C, Typ KX (WD Leichtbauweise) - Produktnorm
Série aérospatiale - Câbles électriques pour transmission de signaux - Partie 010 : Câble, coaxial, allégé, 50 ohms, 200 °C, type KX (WD allégé) - Norme de produit
Le présent document spécifie les caractéristiques requises d’un câble coaxial semi-rigide allégé, 50 , de type KX, pour utilisation dans les systèmes électriques d’aéronefs à des températures de fonctionnement comprises entre 55 °C et 200 °C, et notamment à haute fréquence jusqu’à 6 GHz. Néanmoins, si nécessaire, 65 °C est également acceptable comme indiqué par l’essai de variation rapide de température.
Aeronavtika - Kabli, električni, za prenos signala - 010. del: Kabli, koaksialni, lahki, 50 ohmov, 200 °C, tip KX (lahki WD) - Standard za proizvod
Ta dokument določa zahtevane značilnosti lahkega koaksialnega kabla, 50 Ω, tip KX, za uporabo v električnih sistemih letal pri obratovalnih temperaturah med −55 °C in 200 °C, posebej pa za visoke frekvence do 6 GHz. Kljub temu je, če je potrebno, sprejemljiva tudi temperatura −65 °C, kar je prikazano s preskusom hitre spremembe temperature.
General Information
- Status
- Published
- Public Enquiry End Date
- 28-May-2024
- Publication Date
- 06-May-2026
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 04-May-2026
- Due Date
- 09-Jul-2026
- Completion Date
- 07-May-2026
Relations
- Effective Date
- 22-Apr-2026
- Effective Date
- 05-Apr-2023
Overview
kSIST FprEN 4604-010:2025 is a European standard developed by CEN for lightweight coaxial cables used in aerospace applications. Specifically, this product standard addresses 50-ohm, light weight, type KX (light WD) coaxial cables engineered for signal transmission in aircraft electrical systems. With operating temperatures ranging from −55 °C to 200 °C and performance guaranteed up to 6 GHz, these cables are critical for high-frequency, high-reliability signal transmission in challenging aerospace environments. The standard outlines the required characteristics, testing methods, and quality assurance provisions for these coaxial cables, ensuring consistency and safety for manufacturers and users.
Key Topics
Cable Characteristics:
- Lightweight Design: Optimized for reducing aircraft mass without sacrificing mechanical or electrical performance.
- Temperature Range: Designed to operate between −55 °C and 200 °C; suitable for extreme aerospace environments. Can be tested to −65 °C for rapid temperature change endurance.
- Impedance & Frequency: Fixed at 50 ohms impedance, supporting reliable signal transmission up to 6 GHz.
- Mechanical Durability: Tested for bend radius, crush resistance, flexure endurance, and various environmental factors.
Material Specifications:
- Conductors: Silver-plated copper adhering to stringent ASTM-B298 standards.
- Dielectric & Jacket: Fluorocarbon insulation and jackets providing thermal stability and electrical insulation.
- Shielding: Multiple layers for effective electromagnetic protection.
Testing and Quality Assurance:
- Comprehensive suite of tests in accordance with EN 3475 includes dielectric strength, flammability, flexure, attenuation, and marking durability.
- Ensures cables meet electrical, mechanical, and environmental requirements specified for aerospace use.
Standardized Packaging and Marking:
- Product identification, labeling, and packaging details ensure traceability and consistency across the supply chain.
Applications
kSIST FprEN 4604-010:2025 certified lightweight coaxial cables are integral to a range of aerospace electrical applications where high-frequency signal transmission and low weight are key requirements:
- Aircraft Systems: Used in avionic communication networks, radar systems, navigation equipment, and in-flight entertainment.
- Satellite & Spacecraft: Suitable for onboard interconnects where thermal cycling, reliability, and low mass are essential.
- Military & Defense Aviation: Employed in mission-critical communication nodes and sensory arrays requiring robust, stable high-frequency cabling.
- Aerospace Test Equipment: Ensures performance reliability in laboratory and field testing of advanced aircraft systems.
By standardizing construction, materials, and performance criteria, this standard streamlines procurement, maintenance, and integration for aerospace manufacturers and operators, while also supporting regulatory compliance.
Related Standards
- EN 4604-001: Technical specification for aerospace series electrical cables, for signal transmission.
- EN 3475 (all parts): Comprehensive test methods for electrical cables in aircraft use.
- EN 4604-002: General requirements for electrical signal transmission cables in aerospace.
- EN 3197: Guidelines for the design and installation of aircraft electrical and optical interconnection systems.
- IEC 60096-0-1: International guidelines to the design of specifications for coaxial cables.
- ASTM-B298: Specifications for silver-coated soft or annealed copper wire used in conductors.
- EN 4434: Standard for copper or copper alloy lightweight conductors in electrical cables.
These related standards ensure compatibility, safety, and performance throughout the aerospace electrical cable industry, complementing the requirements established in kSIST FprEN 4604-010:2025.
Keywords: aerospace coaxial cable standard, kSIST FprEN 4604-010:2025, 50 ohm cable, lightweight coaxial, high frequency cable, aircraft cable standard, aerospace cable testing, CEN product standard, avionic signal transmission
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Frequently Asked Questions
SIST EN 4604-010:2026 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Cable, electrical, for signal transmission - Part 010 : Cable, coaxial, light weight, 50 ohms, 200 °C, type KX (light WD) - Product standard". This standard covers: This document specifies the required characteristics of a light weight coaxial cable, 50 Ω, type KX for use in aircraft electrical systems at operating temperature between −55 °C and 200 °C and specially for high frequency up to 6 GHz. Nevertheless, if needed, −65 °C is also acceptable as shown by rapid change of temperature test.
This document specifies the required characteristics of a light weight coaxial cable, 50 Ω, type KX for use in aircraft electrical systems at operating temperature between −55 °C and 200 °C and specially for high frequency up to 6 GHz. Nevertheless, if needed, −65 °C is also acceptable as shown by rapid change of temperature test.
SIST EN 4604-010:2026 is classified under the following ICS (International Classification for Standards) categories: 33.120.10 - Coaxial cables. Waveguides; 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 4604-010:2026 has the following relationships with other standards: It is inter standard links to SIST EN 4604-002:2010, SIST EN 4604-010:2018. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 4604-010:2026 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-junij-2026
Aeronavtika - Kabli, električni, za prenos signala - 010. del: Kabli, koaksialni, lahki,
50 ohmov, 200 °C, tip KX (lahki WD) - Standard za proizvod
Aerospace series - Cable, electrical, for signal transmission - Part 010 : Cable, coaxial,
light weight, 50 ohms, 200 °C, type KX (light WD) - Product standard
Luft- und Raumfahrt - Elektrische Leitungen für Signalübertragungen - Teil 010:
Koaxialkabel, Leichtbauweise, 50 Ohm, 200 °C, Typ KX (WD Leichtbauweise) -
Produktnorm
Série aérospatiale - Câbles électriques pour transmission de signaux - Partie 010 :
Câble, coaxial, allégé, 50 ohms, 200 °C, type KX (WD allégé) - Norme de produit
Ta slovenski standard je istoveten z: EN 4604-010:2026
ICS:
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
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 4604-010
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2026
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 4604-010:2018
English Version
Aerospace series - Cable, electrical, for signal transmission
- Part 010: Cable, coaxial, light weight, 50 ohms, 200 °C,
type KX (light WD) - Product standard
Série aérospatiale - Câbles électriques pour Luft- und Raumfahrt - Elektrische Leitungen für
transmission de signaux - Partie 010 : Câble, coaxial, Signalübertragungen - Teil 010: Koaxialkabel,
allégé, 50 ohms, 200 °C, type KX (WD allégé) - Norme Leichtbauweise, 50 Ohm, 200 °C, Typ KX (WD
de produit Leichtbauweise) - Produktnorm
This European Standard was approved by CEN on 24 November 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 4604-010:2026 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 Material, constructions, dimensions and mass . 6
4.1.1 Material . 6
4.1.2 Construction, dimensions and mass . 7
4.2 General characteristics . 7
4.3 Electrical characteristics . 7
4.4 Tests . 10
5 Quality assurance . 15
6 Designation . 16
7 Identification and marking . 16
8 Colours of components and jacket . 16
9 Packaging, labelling and delivery lengths . 16
9.1 Packaging and labelling . 16
9.2 Delivery lengths. 16
10 Technical specification . 16
Bibliography . 17
European foreword
This document (EN 4604-010:2026) 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 document shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by October 2026, and conflicting national standards shall be withdrawn
at the latest by October 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 4604-010:2018.
EN 4604-010:2018:
editorial improvements and update of 4.3 to modify Table 3 and add Figure 2 and Figure 3.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this document: 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 of a light weight coaxial cable, 50 Ω, type KX for use
in aircraft electrical systems at operating temperature between −55 °C and 200 °C and specially for high
frequency up to 6 GHz. Nevertheless, if needed, −65 °C is also acceptable as shown by rapid change of
temperature test.
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 3197, Aerospace series — Design and installation of aircraft electrical and optical interconnection
systems
EN 3475-201, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 201: Visual
examination
EN 3475-202, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 202: Mass
EN 3475-203, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 203: Dimensions
EN 3475-301, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 301: Ohmic
resistance per unit length
EN 3475-302, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 302: Voltage proof
test
EN 3475-303, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 303: Insulation
resistance
EN 3475-306, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 306: Continuity of
conductors
EN 3475-307, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 307: Corona
extinction voltage
EN 3475-407, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 407: Flammability
EN 3475-411, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 411: Resistance to
fluids
EN 3475-415, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 415: Rapid change
of temperature
EN 3475-416, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 416: Thermal
stability
EN 3475-502, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 502: Notch
propagation
EN 3475-503, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 503: Scrape
abrasion
EN 3475-505, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 505: Tensile test
on conductors and strands
EN 3475-506, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 506: Plating
continuity
EN 3475-507, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 507: Adherence of
plating
EN 3475-508, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 508: Plating
thickness
EN 3475-512, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 512: Flexure
endurance
EN 3475-513, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 513: Deformation
resistance (installation with plastic cable ties)
EN 3475-515, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 515: Crush
resistance
EN 3475-601, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 601: Smoke
density
EN 3475-602, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 602: Toxicity
EN 3475-701, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 701: Strippability
and adherence of insulation to the conductor
EN 3475-702, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 702: Screen
pushback capability
EN 3475-703, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 703: Permanence
of manufacturer’s marking
EN 3475-704, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 704: Flexibility
EN 3475-804, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 804: Velocity of
propagation
EN 3475-805, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 805:
Characteristic impedance
EN 3475-806, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 806: Attenuation
EN 3475-807, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 807: Transfer
impedance
EN 3475-812, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 812: Return loss
(VSWR)
EN 4604-001, Aerospace series — Cable, electrical, for signal transmission — Part 001: Technical
specification
EN 4604-002, Aerospace series — Cable, electrical, for signal transmission — Part 002: General
ASTM B298-07, Standard Specification for Silver-Coated Soft or Annealed Copper Wire
ASTM B298-12, Standard Specification for Silver-Coated Soft or Annealed Copper Wire
IEC 60096-0-1, Radio frequency cables — Part 0-1: Guide to the design of detail specifications — Coaxial
cables
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 3475-100 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 Material, constructions, dimensions and mass
4.1.1 Material
Material shall be as described in Table 1.
Table 1 — Material
Material Finish Colour
Single-strands copper in accordance with
Conductor 1 µm silver plated —
ASTM B298-07
Dielectric Fluorocarbon — —
Screen (foil) Tape, silver plated copper or silver alloy — —
Braid, copper in accordance with
Shield 1 µm silver plated —
ASTM B298-12
Jacket Fluorocarbon — Light green
Published by: ASTM International (US), available at: https:
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