SIST EN 4681-005:2019
(Main)Aerospace series - Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium - Part 005: AZ family, single, for use in low pressure atmosphere - Product standard
Aerospace series - Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium - Part 005: AZ family, single, for use in low pressure atmosphere - Product standard
This European Standard specifies the characteristics of electrical wires AZ family for use in the on board:
115 V (phase to neutral) or 200 V (phase to phase) electrical network of aircraft.
230 V (phase to neutral) or 400 V (phase to phase) electrical network of aircraft and particularly use in non-pressurized areas.
This cable family is used at operating temperature between 65 °C and 180 °C.
Luft- und Raumfahrt - Elektrische Leitungen, zur allgemeinen Verwendung, mit Leitern aus Aluminium oder kupferbeschichtetem Aluminium - Teil 005: AZ-Familie, einadrig, zur Anwendung bei niedrigem Luftdruck - Produktnorm
Série aérospatiale - Câbles, électriques, d'usage général, avec conducteurs en aluminium ou en aluminium chemisé cuivre - Partie 005: Famille AZ, fil simple, pour emploi en basse pression - Norme de produit
La présente Norme Européenne spécifie les caractéristiques de la famille de fils électriques AZ pour utilisation dans les systèmes à bord :
réseau électrique d’aéronef 115 V (phase à neutre) ou 200 V (phase à phase) ;
réseau électrique d’aéronef 230 V (phase à neutre) ou 400 V (phase à phase) et utilisation spécifique en zones non pressurisées.
La température de fonctionnement de cette famille de câbles est comprise entre 65 °C et 180 °C.
Aeronavtika - Kabli, električni, za splošne namene, z vodniki iz aluminija ali pobakrenega aluminija - 005. del: Družina AZ, enožilni, za uporabo v nizkotlačnih atmosferah - Standard za proizvod
Ta evropski standard določa značilnosti električnih kablov družine AZ za uporabo v:
– električnih omrežjih na letalih 115 V (fazna napetost) ali 200 V (medfazna napetost);
– električnih omrežjih na letalih 230 V (fazna napetost) ali 400 V (medfazna napetost) in zlasti v prostorih, ki niso pod tlakom.
Ta družina kablov se uporablja pri temperaturah med −65 °C in 180 °C.
General Information
- Status
- Published
- Publication Date
- 01-Jul-2019
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 20-Jun-2019
- Due Date
- 25-Aug-2019
- Completion Date
- 02-Jul-2019
Relations
- Effective Date
- 19-Jun-2019
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
SIST EN 4681-005:2019 is a European standard developed by the Slovenski inštitut za standardizacijo (SIST) as part of the Aerospace series of standards. It specifies the requirements and characteristics for general purpose electrical cables in the AZ family, with conductors made of aluminium or copper-clad aluminium. These single-core cables are intended for use in aircraft electrical networks, particularly in environments with low pressure, such as non-pressurized areas of the aircraft. The standard supports electrical networks operating at 115 V or 200 V (phase to neutral or phase to phase), and also at 230 V or 400 V, catering to various onboard aircraft applications.
With an operational temperature range from −65 °C to +180 °C, these cables are designed for the demanding conditions of aerospace environments, ensuring safety, performance, and durability.
Keywords: aerospace cables, aluminium conductor cables, aircraft electrical wiring, low-pressure cables, SIST EN 4681-005:2019, AZ family cables, product standard
Key Topics
- Application Scope: Defines cable suitability for 115/200 V and 230/400 V aircraft electrical networks, emphasizing use in areas exposed to low pressure, such as non-pressurized compartments.
- Materials and Construction:
- Conductors are nickel-plated aluminium alloy, conforming to strict aerospace standards.
- Single-core design is specified for all compliant cables.
- Insulation is engineered to meet high-performance criteria, and the use of foamed insulation is prohibited.
- Construction aligns with EN 3719 for aluminium alloy conductors and EN 4681-002 for core colour coding.
- Performance Requirements:
- Cables must pass rigorous tests for electrical resistance, insulation integrity, flexibility, marking, and flame retardance as required by EN 3475-100.
- Testing includes visual inspection, dimensional checks, voltage endurance, insulation resistance, corona extinction, and accelerated ageing.
- Identification and Marking: Clear criteria for cable designation and product labelling ensure traceability and ease of maintenance in aerospace applications.
- Compliance and Quality Assurance:
- Detailed alignment with EN 9133 quality assurance requirements for aerospace products.
- Only certified products meeting these specifications are permitted for use in aircraft.
Applications
The AZ family cables defined by SIST EN 4681-005:2019 are widely used in:
- Commercial and military aircraft: Power distribution in avionics systems, cabin electrical systems, lighting circuits, and control panels, especially in sections exposed to unpressurized, variable pressure, or extreme thermal conditions.
- Low-pressure aircraft zones: Appropriate for cargo bays, landing gear compartments, and non-pressurized fuselage sections, ensuring reliable operation under variable atmospheric conditions.
- Replacement and standardization projects: Provides guidance for maintenance teams selecting replacement wiring that meets updated European and international safety standards.
- Aerospace system integration: Ensures consistency and safety in electrical system design by specifying cable characteristics that meet robust industry requirements.
Related Standards
To ensure full compliance and interoperability, users should consult the following related standards:
- EN 4681-001: Technical specification for general purpose cables with aluminium or copper-clad aluminium conductors
- EN 4681-002: General requirements including core identification and color coding
- EN 3475-100: Test methods for aerospace electrical cables
- EN 3719: Product requirements for aluminium or aluminium alloy conductors in electrical cables
- EN 3838: Requirements for user-applied cable markings in aerospace
- EN 9133: Quality Management Systems - Qualification Procedures for Aerospace Standard Products
By adhering to SIST EN 4681-005:2019 and related standards, aerospace manufacturers and maintenance organizations ensure the highest levels of safety, reliability, and performance in aircraft electrical systems.
Get Certified
Connect with accredited certification bodies for this standard

BUREAU VERITAS Certification Germany
Bureau Veritas certification in Germany.

Element Materials Technology
Materials testing and product certification.

IMQ S.p.A. (Certification)
Italian electrical product certification.
Sponsored listings
Frequently Asked Questions
SIST EN 4681-005:2019 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Cables, electric, general purpose, with conductors in aluminium or copper-clad aluminium - Part 005: AZ family, single, for use in low pressure atmosphere - Product standard". This standard covers: This European Standard specifies the characteristics of electrical wires AZ family for use in the on board: 115 V (phase to neutral) or 200 V (phase to phase) electrical network of aircraft. 230 V (phase to neutral) or 400 V (phase to phase) electrical network of aircraft and particularly use in non-pressurized areas. This cable family is used at operating temperature between 65 °C and 180 °C.
This European Standard specifies the characteristics of electrical wires AZ family for use in the on board: 115 V (phase to neutral) or 200 V (phase to phase) electrical network of aircraft. 230 V (phase to neutral) or 400 V (phase to phase) electrical network of aircraft and particularly use in non-pressurized areas. This cable family is used at operating temperature between 65 °C and 180 °C.
SIST EN 4681-005:2019 is classified under the following ICS (International Classification for Standards) categories: 29.060.20 - Cables; 49.025.20 - Aluminium; 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 4681-005:2019 has the following relationships with other standards: It is inter standard links to SIST EN 4681-005:2015, SIST EN 3475-411:2018, SIST EN 3475-507:2007, SIST EN 3838:2022, SIST EN 3475-402:2004, SIST EN 3475-304:2004, SIST EN 3475-503:2004, SIST EN 3475-408:2026, SIST EN 3475-415:2006, SIST EN 3475-201:2004, SIST EN 3475-303:2004, SIST EN 3475-404:2025, SIST EN 3475-601:2007, SIST EN 3475-702:2004, SIST EN 3475-514:2014. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 4681-005:2019 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-september-2019
Nadomešča:
SIST EN 4681-005:2015
Aeronavtika - Kabli, električni, za splošne namene, z vodniki iz aluminija ali
pobakrenega aluminija - 005. del: Družina AZ, enožilni, za uporabo v nizkotlačnih
atmosferah - Standard za proizvod
Aerospace series - Cables, electric, general purpose, with conductors in aluminium or
copper-clad aluminium - Part 005: AZ family, single, for use in low pressure atmosphere -
Product standard
Luft- und Raumfahrt - Elektrische Leitungen, zur allgemeinen Verwendung, mit Leitern
aus Aluminium oder kupferbeschichtetem Aluminium - Teil 005: AZ-Familie, einadrig, zur
Anwendung bei niedrigem Luftdruck - Produktnorm
Série aérospatiale - Câbles, électriques, d'usage général, avec conducteurs en
aluminium ou en aluminium chemisé cuivre - Partie 005: Famille AZ, fil simple, pour
emploi en basse pression - Norme de produit
Ta slovenski standard je istoveten z: EN 4681-005:2019
ICS:
29.060.20 Kabli Cables
49.025.20 Aluminij Aluminium
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 4681-005
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2019
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 4681-005:2015
English Version
Aerospace series - Cables, electric, general purpose, with
conductors in aluminium or copper-clad aluminium - Part
005: AZ family, single, for use in low pressure atmosphere
- Product standard
Série aérospatiale - Câbles, électriques, d'usage Luft- und Raumfahrt - Elektrische Leitungen, zur
général, avec conducteurs en aluminium ou en allgemeinen Verwendung, mit Leitern aus Aluminium
aluminium chemisé cuivre - Partie 005: Famille AZ, fil oder kupferbeschichtetem Aluminium - Teil 005: AZ-
simple, pour emploi en basse pression - Norme de Familie, einadrig, zur Anwendung bei niedrigem
produit Luftdruck - Produktnorm
This European Standard was approved by CEN on 6 August 2018.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4681-005:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms, definitions and symbols . 4
4 Materials and construction . 5
5 Required characteristics . 6
6 Quality assurance . 8
7 Designation . 9
8 Identification and marking . 9
9 Packaging, labelling and delivery lengths . 9
10 Technical specification . 9
European foreword
This document (EN 4681-005:2019) 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 Standard has
received the approval of the National Associations and the Official Services of the member countries of
ASD, 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 December 2019, and conflicting national standards shall
be withdrawn at the latest by December 2019.
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 4681-005:2015.
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, Former Yugoslav Republic of Macedonia, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
the United Kingdom.
1 Scope
This European Standard specifies the characteristics of electrical wires AZ family for use in the on board:
115 V (phase to neutral) or 200 V (phase to phase) electrical network of aircraft.
230 V (phase to neutral) or 400 V (phase to phase) electrical network of aircraft and particularly use
in non-pressurized areas.
This cable family is used at operating temperature between − 65 °C and 180 °C.
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.
1)
EN 3475-100, Aerospace series — Cables, electrical, aircraft use — Test methods — Part 100: General
EN 3719, Aerospace series — Aluminium or aluminium alloy conductors for electrical cables —
Product st
...



