EN 4165-018:2026

Aerospace series - Connectors, electrical, rectangular, modular - Operating temperature 175 °C continuous - Part 018: Protective cover for 1, 2 and 4 module receptacles series 2 and 3 - Product standard

This document specifies the protective cover for all receptacles series 2 and series 31 used in the family of rectangular electrical connectors.
The receptacle connectors corresponding to those protective covers are specified in EN 4165-004, EN 4165-011 and EN 4165-025.

Luft- und Raumfahrt - Elektrischer Rechtecksteckverbinder in modularer Bauweise - Betriebstemperatur 175 °C konstant - Teil 018: Schutzkappe für festen Steckverbinder mit 1, 2 und 4 Modulen, Serie 2 und 3 - Produktnorm

Série aérospatiale - Connecteurs électriques rectangulaires modulaires - Température d'utilisation 175 °C continu - Partie 018 : Bouchon de vol pour embases 1, 2 et 4 modules, série 2 et série 3 - Norme de produit

Le présent document spécifie les bouchons de vol pour toutes les embases série 2 et série 31 utilisées dans la famille des connecteurs électriques rectangulaires.
Les connecteurs de type embase correspondant à ces bouchons de vol sont spécifiés dans l’EN 4165-004, l’EN 4165-011 et l’EN 4165-025.

Aeronavtika - Konektorji, električni, pravokotni, modularni - Stalna delovna temperatura 175 °C - 018. del: Zaščitna kapa za enega, dva in štiri module, seriji 2 in 3 - Standard za proizvod

General Information

• Status: Not Published
• Publication Date: 28-Jul-2026
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2/S 3 - Elements of Connection (Connectors, Contacts, rear accessories, crimping tools
• Current Stage: 6055 - CEN Ratification completed (DOR) - Publishing
• Start Date: 16-Feb-2026
• Completion Date: 16-Feb-2026
• Ref Project: kSIST FprEN 4165-018:2025 - Aerospace series - Connectors, electrical, rectangular, modular - Operating temperature 175 °C continuous - Part 018: Protective cover for 1, 2 and 4 module receptacles series 2 and 3 - Product standard

Relations

• Revises: EN 4165-018:2015 - Aerospace series - Connectors, electrical, rectangular, modular - Operating temperature 175 °C continuous - Part 018: Protective cover for all receptacles series 2 - Product standard
• Effective Date: 20-Feb-2023

Overview

EN 4165-018:2026 is a European product standard developed by CEN for the aerospace industry, focusing on electrical rectangular modular connectors. This part of the EN 4165 series specifies the requirements for protective covers designed for 1, 2, and 4 module receptacles of series 2 and 3, ensuring protection and integrity of electrical connector systems under continuous operating temperatures up to 175 °C. This standard addresses the specific needs for durable and reliable protection in demanding aerospace environments.

Key Topics

• Protective Cover Specification: Defines the characteristics and requirements for protective covers compatible with modular rectangular connector receptacles, particularly for series 2 and 3.
• Compatibility: These covers are intended for use with receptacles referenced in EN 4165-004, EN 4165-011, and EN 4165-025, covering both single and multi-module configurations.
• Design and Features:
  • Covers for 1, 2, and 4 module receptacles
  • Options for classes W and F
  • Secure attachment with unlosable cords and EMI protection features
  • Sealing capability for environmental protection
• Marking and Identification: Requirements for product marking include identity block, date of manufacture, and manufacturer’s identification, enhancing traceability and quality control.
• Performance Requirements: The standard references EN 4165-001 for technical and environmental performance, ensuring the cover maintains integrity at high temperatures and in harsh conditions.

Applications

EN 4165-018:2026 covers protective covers for rectangular modular connectors mainly used in the aerospace sector, where robust electrical systems are critical for safety and performance. Practical applications include:

• Aircraft Electrical Systems: Protection of module receptacles against dust, moisture, and electromagnetic interference when the connector is not in use, helping maintain reliability in avionics and power distribution networks.
• Spacecraft and Satellites: Ensures continuity of protection in modular connectors that may be exposed to extreme environmental changes.
• Military Aerospace Applications: Suitable for defense and aerospace platforms requiring high-temperature operation and durable protective solutions for electrical interfaces.

The adoption of protective covers as specified by this standard helps extend the lifespan of modular connector receptacles, reduces maintenance costs, and enhances safety by preventing contamination or mechanical damage.

Related Standards

EN 4165-018:2026 is part of a broader family of standards regulating modular rectangular connectors and their accessories in aerospace:

• EN 4165-001: Technical specifications for modular rectangular connectors, including general requirements and test methods.
• EN 4165-002: Covers performance specifications and contact arrangements for connectors.
• EN 4165-004: Specifies stackable mounting receptacles for 2 and 4 modules (series 2).
• EN 4165-011: Details flange mounting receptacles for 2 and 4 modules (series 2).
• EN 4165-025: Covers single module receptacles.
• ICS 31.220.10: Pertains to plug-and-socket devices, connectors.
• ICS 49.060: Relates specifically to aerospace electric equipment and systems.

By aligning with this and related standards, manufacturers and system integrators can ensure compatibility, interchangeability, and compliance with internationally recognized requirements for aerospace electrical connectors and their protective accessories. This standard is essential for maintaining robustness and reliability in modern aerospace electrical systems.

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 4165-018:2024
01-november-2024
Aeronavtika - Konektorji, električni, pravokotni, modularni - Stalna delovna
temperatura 175 °C - 018. del: Zaščitna kapa za enega, dva in štiri module, seriji 2
in 3 - Standard za proizvod
Aerospace series - Connectors, electrical, rectangular, modular - Operating temperature
175 °C continuous - Part 018: Protective cover for 1, 2 and 4 module receptacles series
2 and 3 - Product standard
Luft- und Raumfahrt - Elektrischer Rechtecksteckverbinder in modularer Bauweise -
Betriebstemperatur 175 °C konstant - Teil 018: Schutzkappe für festen Steckverbinder
mit 1, 2 und 4 Modulen, Serie 2 und 3 - Produktnorm
Série aérospatiale - Connecteurs électriques rectangulaires modulaires - Température
d'utilisation 175 °C - Partie 018 : Bouchon de vol pour les embases pour 1, 2 ou 4
modules, série 2 et série 3 - Norme de produit
Ta slovenski standard je istoveten z: prEN 4165-018
ICS:
31.220.10 Vtiči in vtičnice, konektorji Plug-and-socket devices.
Connectors
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
oSIST prEN 4165-018:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 4165-018:2024
oSIST prEN 4165-018:2024
DRAFT
EUROPEAN STANDARD
prEN 4165-018
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2024
ICS 49.060 Will supersede EN 4165-018:2015
English Version
Aerospace series - Connectors, electrical, rectangular,
modular - Operating temperature 175 °C continuous - Part
018: Protective cover for 1, 2 and 4 module receptacles
series 2 and 3 - Product standard
Série aérospatiale - Connecteurs électriques Luft- und Raumfahrt - Elektrischer
rectangulaires modulaires - Température d'utilisation Rechtecksteckverbinder in modularer Bauweise -
175 °C - Partie 018 : Bouchon de vol pour les embases Betriebstemperatur 175 °C konstant - Teil 018:
pour 1, 2 ou 4 modules, série 2 et série 3 - Norme de Schutzkappe für festen Steckverbinder mit 1, 2 und 4
produit Modulen, Serie 2 und 3 - 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 4165-018:2024 E
worldwide for CEN national Members.

oSIST prEN 4165-018:2024
prEN 4165-018:2024 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Required characteristics . 4
5 Protective cover . 4
5.1 For 2 modules, classes W and F . 4
5.2 For 4 modules, classes W and F . 5
5.3 For single module . 7
6 Designation .
...