SIST 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
• Public Enquiry End Date: 29-Nov-2024
• Publication Date: 20-Aug-2026
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-Aug-2026
• Due Date: 16-Oct-2026
• Completion Date: 21-Aug-2026
• Ref Project: 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

• Referred By: SIST 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: SIST 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: SIST 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: SIST 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: SIST EN 3155-003:2026 - Aerospace series - Electrical contacts used in elements of connection - Part 003: Contacts, electrical, female, type A, crimp, class S - Product standard
• Effective Date: 05-Aug-2026
• Referred By: SIST 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: SIST EN 3545-008:2009 - 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: SIST 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
• Revised: SIST EN 3545-005:2015 - 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: 19-Jan-2023

SIST EN 3545-005:2026 is the Slovenian adoption of EN 3545-005:2026 from CEN. It specifies the female coding and attachment system for mounting on free housing (plug) in aerospace rectangular electrical connectors with sealed and non-sealed rear, plastic housing, locking device, and operating temperatures from -55 °C to 175 °C. Manufacturers, designers, buyers, and test laboratories use it to define the physical interface, materials, and designation for this connector part.

What does SIST EN 3545-005:2026 specify?

SIST EN 3545-005:2026 specifies one part of the connector family: the female coding and attachment system for mounting on free housing. The document is organized into Scope, Normative references, Terms and definitions, Required characteristics, Designation, and Technical specification.

The scope ties this part to the wider family of rectangular electrical connectors with sealed and non-sealed rear, plastic housing, locking device, and an operating temperature range from -55 °C to 175 °C. In practice, that tells a reader exactly which connector family the part fits and which design limits the part must meet.

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

SIST EN 3545-005:2026 focuses on geometry, materials, surface treatment, and how the part is identified. The most important requirements are in Clause 4, with Clause 5 and Clause 6 linking the part to its designation and the broader technical specification.

Geometry and mass

Clause 4.1 says the attachment system dimensions shall follow Figure 1, with dimensions and tolerances given in millimetres. The mass is limited to 3 g maximum. For a manufacturer, that means the part has a fixed interface and a controlled weight for fit and assembly.

Figure 1 identifies the main elements of the female coding and attachment system, including the female body, retaining ring, captive screw, washer, optional knurling, and position indicator. It also shows the thread forms in accordance with FED-STD-H28. In practice, this gives the exact mechanical interface used to mount and secure the part.

Materials and surface treatment

Clause 4.2 specifies the approved materials and finishes 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 does not allow mixing surface treatments on one attachment and coding system. For procurement and quality control, this means the chosen finish must be consistent across the part and match the permitted combinations.

General characteristics and tightening torque

Clause 4.3 points to EN 3545-002 for the main general characteristics. The tightening torque of the locking screw is given as 0.06 daN·m to 0.10 daN·m. In practice, assemblers need to tighten within that range so the connector locks correctly without overstressing the hardware.

Designation and technical specification

Clause 5 gives the designation format and notes that the code I9005 may be inserted between the description block and the identity block when needed. Clause 6 requires the technical specification to be in accordance with EN 3545-001. That tells a buyer or engineer how this part is named in documentation and which companion standard governs the technical specification.

What terms does SIST EN 3545-005:2026 define?

Clause 3 states that the terms and definitions of EN 3545-001 apply to this part. The same vocabulary is therefore used across the family.

• Female coding - the indexing feature that helps ensure the connector mates in the correct position.
• Attachment system - the hardware used to secure the coding part onto the free housing.
• Free housing (plug) - the connector housing on which this part is mounted.
• Locking device - the mechanism that holds the connector assembly in position.
• Female body - the main body component shown in Figure 1.
• Retaining ring - the ring component shown in Figure 2 that helps retain the assembly.
• Technical specification - the broader technical document that defines the part family requirements through EN 3545-001.

Who uses SIST EN 3545-005:2026?

SIST EN 3545-005:2026 is used in the aerospace sector by connector manufacturers, design engineers, purchasing teams, quality managers, and test laboratories. It is relevant when defining, buying, inspecting, or assembling rectangular electrical connectors for aircraft and related aerospace equipment.

It is especially useful where the connector interface, approved materials, surface treatment, and tightening torque must be aligned across design, procurement, and production records.

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

SIST EN 3545-005:2026 supersedes EN 3545-005:2014. The foreword states that the significant technical changes are updates to subclause 4.2, “Materials and surface treatment,” and Clause 5, “Designation,” including the introduction of zinc-nickel plating.

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

• EN 3545-001 - provides the technical specification and the terms and definitions used by this part.
• EN 3545-002 - provides the performance and contact arrangements, and the main general characteristics referenced in Clause 4.3.
• FED-STD-H28 - provides the screw-thread standard used for the thread designations shown in Figure 1.

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

The document contains one scope clause, one clause of normative references, one clause for terms and definitions, one clause for required characteristics, one clause for designation, and one clause for the technical specification. The technical content is concentrated in Clause 4 and in Figures 1 and 2.

Figure 1 gives the layout of the female coding and attachment system and identifies the key parts of the assembly. Figure 2 gives the retaining ring detail. Together, these figures support design definition, manufacturing, inspection, and assembly checking for this connector part.

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.

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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 .
...