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 3155-015:2019 - 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 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 3155-003:2026 - 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 ISO 10218-2:2025 - Robotics - Safety requirements - Part 2: Industrial robot applications and robot cells (ISO 10218-2:2025)
• Effective Date: 28-Jan-2026

EN 3545-005:2026 is a CEN European Standard for the aerospace series of rectangular electrical connectors with sealed and non-sealed rear, plastic housing, locking device, and operating temperatures from -55 °C to 175 °C. It specifies the female coding and attachment system used for mounting on a free housing (plug), so engineers, buyers, and quality teams can identify the required form, materials, and locking details for this connector part.

What does EN 3545-005:2026 specify?

EN 3545-005:2026 specifies one product in the EN 3545 connector family: the female coding and attachment system for mounting on a free housing (plug). It is a product standard, so it focuses on the physical interface and identification details for this connector part rather than on the wider connector family.

The document is organized into six clauses: Scope, Normative references, Terms and definitions, Required characteristics, Designation, and Technical specification. Clause 4 contains the practical design requirements, with separate subclauses for dimensions and mass, materials and surface treatment, and main general characteristics.

What are the key requirements of EN 3545-005:2026?

EN 3545-005:2026 sets the dimensional, material, torque, and documentation requirements that define this attachment system. In practice, these are the points that determine whether the part fits, functions, and is specified consistently.

Dimensional and physical requirements

Clause 4.1 requires the attachment system dimensions to follow Figure 1, with dimensions and tolerances given in millimetres. The mass is limited to 3 g maximum. For users, this means the part must match the prescribed geometry and stay within a very low weight limit, which matters in connector interchangeability and aerospace weight control.

Materials and surface treatment

Clause 4.2 specifies the materials and surface treatments for the body, retaining ring, washer, and captive screw. The document allows cadmium-plated, dichromate-sealed finishes or zinc/nickel alloys with trivalent passivation, and it also states that a mix of surface treatments on one attachment and coding system is not allowed. In practice, manufacturers need to control material selection and finishing as a complete set, not as a mixed build.

General characteristics and tightening torque

Clause 4.3 says the main general characteristics shall be in accordance with EN 3545-002. It also gives the tightening torque for the locking screw as 0,06 daN⋅m to 0,10 daN⋅m. For production and inspection, that means the part must meet the companion performance and contact arrangement requirements, and assembly must control screw torque within the stated range.

Designation and technical specification

Clause 5 gives the designation rule and shows an example where the code I9005 may be placed between the description block and the identity block if needed. Clause 6 states that the technical specification shall be in accordance with EN 3545-001. In practice, this links the part numbering and technical documentation back to the parent EN 3545 framework.

What terms does EN 3545-005:2026 define?

EN 3545-005:2026 uses the terms and definitions from EN 3545-001. The following document terms are especially relevant for readers of this part:

• Female coding and attachment system - the coded attachment arrangement specified for mounting on the free housing (plug).
• Free housing (plug) - the connector housing on which this attachment system is mounted.
• Retaining ring - the ring component shown in Figure 2 that forms part of the attachment assembly.
• Captive screw - the screw that remains attached to the assembly and is used for locking.
• Locking screw - the screw whose tightening torque is specified in Clause 4.3.
• EN 3545-001 - the technical specification part that also provides the applicable terms and definitions.
• EN 3545-002 - the companion part that covers performance and contact arrangements and supplies the main general characteristics.

Who uses EN 3545-005:2026?

EN 3545-005:2026 is used by aerospace connector designers, manufacturers, and suppliers who need a defined female coding and attachment interface for rectangular connectors. It is also used by quality managers, procurement teams, and inspection laboratories when checking conformity, specifying the correct part, or controlling build consistency.

Because the standard ties this part to the EN 3545 connector family, it is relevant to organizations working on aerospace electric equipment and systems, especially where connector interchangeability, weight, materials, and assembly torque need to be controlled.

What changed in EN 3545-005:2026 from the previous edition?

EN 3545-005:2026 supersedes EN 3545-005:2014. The foreword states that the significant technical changes are an update of subclause 4.2, an update of Clause 5, and the introduction of zinc-nickel plating.

Which standards are used with EN 3545-005:2026?

EN 3545-005:2026 cites three normative references:

• EN 3545-001 - provides the technical specification and the terms and definitions used by this part.
• EN 3545-002 - provides the specification of performance and contact arrangements and the main general characteristics.
• FED-STD-H28 - provides the screw-thread standard used for the threaded features identified in Figure 1.

What does the EN 3545-005:2026 document contain?

EN 3545-005:2026 contains one dimensional figure for the female coding and attachment system and one figure for the retaining ring. It also contains the material and surface-treatment list for the body, retaining ring, washer, and captive screw, plus the torque requirement for the locking screw.

The document includes the designation rule and the technical-specification cross-reference needed to specify the part correctly within the EN 3545 family. For design and inspection work, the most useful content is the combination of Figure 1, Figure 2, and Clause 4, because these define the part’s geometry, finish, and assembly behavior.

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
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© 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 .
...