EN 3545-005:2026

• Abstract:

  This document specifies the female coding and attachment system for mounting on free housing in the family of rectangular electrical connectors with sealed and non-sealed rear, plastic housing, locking device, for operating temperatures from -55 °C to 175 °C.

• Status: 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: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 29-Jul-2026
• Completion Date: 29-Jul-2026
• Ref Project: SIST EN 3545-005:2026 - Aerospace series - Connectors, electrical, rectangular, with sealed and non-sealed rear, plastic housing, locking device, operating temperatures - 55 C to 175 C - Part 005: Female coding and attachment System for mounting on free housing (plug) - Product standard

• Replaces: EN 3545-005:2014 - Aerospace series - Connectors, electrical, rectangular, with sealed and non-sealed rear, plastic housing, locking device, operating temperatures -55 °C to 175 °C - Part 005: Female coding and attachment System for mounting on free housing (plug) - Product standard
• Effective Date: 18-Jan-2023
• Referred By: EN 3155-014:2019 - Aerospace series - Electrical contacts used in elements of connection - Part 014: Contacts, electrical, male, type A, crimp, class S - Product standard
• Effective Date: 05-Aug-2026
• Referred By: EN 3155-003:2026 - Aerospace series - Electrical contacts used in elements of connection - Part 003: Contacts, electrical, female 003, type A, crimp, class S - Product standard
• Effective Date: 05-Aug-2026
• Referred By: EN 3155-002:2024 - Aerospace series - Electrical contacts used in elements of connection - Part 002: List and utilization of contacts
• Effective Date: 05-Aug-2026
• Referred By: EN 3545-002:2008 - Aerospace series - Connectors, electrical, rectangular, with sealed and non-sealed rear, plastic housing, locking device, operating temperatures - 55 °C to 175 °C - Part 002: Specification of performance and contact arrangements
• Effective Date: 05-Aug-2026
• Referred By: EN 3545-008:2006 - Aerospace series - Connectors, electrical, rectangular, with sealed and non-sealed rear, plastic housing, locking device, operating temperatures - 55 C to 175 C - Part 008: Tools for assembly/removal of coding and attachment system - Product standard
• Effective Date: 05-Aug-2026
• Referred By: EN 3545-009:2008 - Aerospace series - Connectors, electrical, rectangular, with sealed and non-sealed rear, plastic housing, locking device, operating temperatures - 55 °C to 175 °C - Part 009: Protective cover for plug and receptacle - Product standard
• Effective Date: 05-Aug-2026
• Referred By: EN 3155-015:2019 - Aerospace series - Electrical contacts used in elements of connection - Part 015: Contacts, electrical, female, type A, crimp, class S - Product standard
• Effective Date: 05-Aug-2026
• Referred By: EN ISO 10218-2:2025 - Robotics - Safety requirements - Part 2: Industrial robot applications and robot cells (ISO 10218-2:2025)
• Effective Date: 28-Jan-2026

Overview

EN 3545-005:2026 is a CEN standard developed as part of the Aerospace series, specifying the female coding and attachment system for mounting on free housing (plug) within rectangular electrical connectors. These connectors are designed with both sealed and non-sealed rear plastic housings and integrated locking devices, supporting operating temperatures from -55°C to 175°C. This standard details the product requirements for aerospace applications, ensuring quality, interoperability, and reliable performance in harsh environments.

This standard supersedes EN 3545-005:2014, providing updated requirements for materials and surface treatments, as well as clarifying designation and technical characteristics.

Key Topics

• Female Coding and Attachment Systems: Defining the structure, coding, and secure attachment method for female components used in free housing (plug) connectors.
• Material and Surface Treatments: Specification of the materials (such as cadmium-plated steel, zinc/nickel alloys with trivalent passivation) for key components like the body, retaining ring, washer, and captive screw, ensuring corrosion resistance and durability. Mixing surface treatments on a single attachment and coding system is not allowed.
• Dimensional and Mechanical Features: Maximum mass (3 g), exact dimensions and tolerances, and details for elements such as knurling, retaining rings, captive screws, and position indicators.
• Environmental Performance: Ensuring connector systems are robust across an operating temperature range of -55°C to 175°C, suitable for demanding aerospace conditions.
• Locking and Security: Includes a locking screw with a specified tightening torque range for secure attachment and reliable in-service operation.

Applications

This standard is essential for organizations involved in the design, assembly, and maintenance of electrical systems for aerospace and aviation, offering practical guidance on selecting and implementing connector systems with consistent performance. Key applications include:

• Aerospace Electric Equipment: Used in fixed-wing and rotary-wing aircraft, satellites, and spacecraft requiring reliable electrical interconnections under extreme environmental conditions.
• Aviation Connector Systems: For systems demanding both sealed and non-sealed solutions, providing flexibility in addressing various pressure, moisture, and chemical resistance requirements.
• Military and Defense Projects: Application in mission-critical defense electronics where standardized, robust electrical connectors are essential for operational security and continuity.
• High-Performance Industrial Uses: Applicable in industrial segments where exposure to vibration, temperature fluctuations, and demanding operational cycles necessitate aerospace-grade connectors.

The specification aids manufacturers by ensuring interchangeability, compatibility, and safety, streamlining assembly and maintenance practices.

Related Standards

For a complete understanding and effective implementation, EN 3545-005:2026 should be consulted with the following related documents:

• EN 3545-001: Aerospace series - Connectors, electrical, rectangular, with sealed and non-sealed rear, plastic housing, locking device, operating temperatures - Technical specification.
• EN 3545-002: Aerospace series - Connectors, electrical, rectangular, with sealed and non-sealed rear, plastic housing, locking device, operating temperatures - Specification of performance and contact arrangements.
• FED-STD-H28: Screw thread standards for federal services.

For terminology and up-to-date definitions, users are advised to consult the ISO Online Browsing Platform and the IEC Electropedia.

---

By adhering to EN 3545-005:2026, professionals can enhance the reliability, safety, and performance of aerospace electrical connector systems, ensuring alignment with international best practices and compliance across the global supply chain.

Keywords: EN 3545-005:2026, aerospace series, rectangular connectors, female coding and attachment system, electrical connectors, plastic housing, sealed connectors, aviation standards, CEN, connector locking device, operating temperatures, aerospace equipment.

SLOVENSKI STANDARD
01-oktober-2026
Aeronavtika - Konektorji, električni, pravokotni, s tesnilno kapo ali brez nje,
plastično ohišje, zaporni mehanizem, delovna temperatura med –55 °C in 175 °C -
005. del: Ženska doza/puša in sistem za pritrditev na gibljivo ohišje (vtič) -
Standard za proizvod
Aerospace series - Connectors, electrical, rectangular, with sealed and non-sealed rear,
plastic housing, locking device, operating temperatures - 55 C to 175 C - Part 005:
Female coding and attachment System for mounting on free housing (plug) - Product
standard
Luft- und Raumfahrt - Elektrische Rechtecksteckverbinder mit und ohne hintere
Abdichtung, Plastikgehäuse, Verriegelungssystem, Betriebstemperaturen von -55 °C bis
175 °C - Teil 005: Buchsenkodierung und Befestigungszubehör für ein bewegliches
Gehäuse (Stecker) - Produktnorm
Série aérospatiale - Connecteurs électriques, rectangulaires, étanches et non étanches
à l'arrière, à boîtier en plastique, à verrouillage, températures d'utilisation -55 °C à 175
°C - Partie 005 : Système de fixation et de codage femelle pour montage sur boîtier
mobile (fiche) - Norme de produit
Ta slovenski standard je istoveten z: EN 3545-005:2026
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3545-005
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2026
EUROPÄISCHE NORM
ICS 49.060 Supersedes EN 3545-005:2014
English Version
Aerospace series - Connectors, electrical, rectangular, with
sealed and non-sealed rear, plastic housing, locking device,
operating temperatures - 55 C to 175 C - Part 005: Female
coding and attachment System for mounting on free
housing (plug) - Product standard
Série aérospatiale - Connecteurs électriques, Luft- und Raumfahrt - Elektrische
rectangulaires, étanches et non étanches à l'arrière, à Rechtecksteckverbinder mit und ohne hintere
boîtier en plastique, à verrouillage, températures Abdichtung, Plastikgehäuse, Verriegelungssystem,
d'utilisation -55 °C à 175 °C - Partie 005 : Système de Betriebstemperaturen von -55 °C bis 175 °C - Teil 005:
codage et de fixation femelle pour montage sur boîtier Buchsenkodierung und Befestigungszubehör für ein
mobile (fiche) - Norme de produit bewegliches Gehäuse (Stecker) - Produktnorm
This European Standard was approved by CEN on 16 February 2026.

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 3545-005:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Required characteristics . 4
4.1 Dimensions, mass . 4
4.2 Materials and surface treatment . 6
4.3 Main general characteristics . 6
5 Designation . 7
6 Technical specification .
...