kSIST FprEN 3545-003:2026

• Abstract:

  This document specifies connectors with female contacts 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.; These connectors may be used as receptacles (fixed housings) or plugs (free housings) in conjunction with the following coding and attachment system:; - male coding and attachment system for mounting on a fixed housing;; - female coding and attachment system for mounting on a free housing.

• Status: Not Published
• Public Enquiry End Date: 29-Jan-2025
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 10-Jul-2026
• Due Date: 28-Aug-2026
• Completion Date: 10-Jul-2026
• Ref Project: FprEN 3545-003 - Aerospace series - Connectors, electrical, rectangular, with sealed and non-sealed rear, plastic housing, locking device, operating temperatures -55 °C to 175 °C - Part 003: Connectors with female contacts - Product standard

• Revises: SIST EN 3545-003:2006 - Aerospace series - Connectors, electrical, rectangular, with sealed and non-sealed rear, plastic housing, locking device, operating temperatures - 55 °C to 175 °C - Part 003: Connectors with female contacts - Product standard
• Effective Date: 19-Jun-2024

Overview

kSIST FprEN 3545-003:2026 is a standard developed by SIST for the aerospace industry, defining the specifications for electrical rectangular connectors with female contacts. These connectors feature sealed or non-sealed rear plastic housings, a locking mechanism, and are capable of operating in extreme temperature conditions ranging from −55 °C to 175 °C. The connectors are designed for reliable electrical connections in aerospace environments, ensuring durability and performance. This product standard replaces EN 3545-003:2005 and aligns with evolving aerospace requirements.

Key Topics

• Connector Types: Rectangular electrical connectors with options for sealed and non-sealed rears, ensuring suitability for various environmental requirements.
• Contacts: Focus on connectors with female contacts, specified for compatibility and performance.
• Housing Material: Use of plastic housing for lightweight and durable construction, an essential consideration in aerospace applications.
• Locking Device: Inclusion of a robust locking mechanism, critical for secure connections during operation and vibration.
• Operating Temperatures: Suitable for demanding thermal conditions, from −55 °C to 175 °C, addressing a key aerospace need.
• Coding and Attachment: Compatibility with male and female coding and attachment systems for flexible installation as fixed receptacles or free plugs.
• Plating Options: Differentiation between cadmium-plated and zinc-nickel plated connectors, providing corrosion resistance options.
• Marking and Delivery: Clear manufacturer marking, date coding, and detailed delivery conditions to support traceability and maintenance.

Applications

This standard is vital for manufacturers, suppliers, and engineers in the aerospace sector who require dependable electrical connectors for aircraft systems and components. Its key application areas include:

• Aerospace Electrical Systems: Ideal for use in aircraft communication, control, and instrumentation systems, where high-reliability connectors are essential.
• Harsh Environments: The wide operating temperature range and optional sealing make these connectors suitable for environments exposed to temperature extremes, humidity, and vibration.
• Custom Assemblies: The standard's flexible coding and attachment systems support custom configurations for specific aircraft or spacecraft needs.
• Maintenance and Replacement: Uniform product standards simplify inventory, spares management, and maintenance procedures across fleets.
• System Integration: Enables seamless integration with other EN 3545 series connector components, supporting modular electrical system design.

Related Standards

To ensure comprehensive compliance and compatibility within aerospace electrical systems, consider the following related standards:

• EN 2591-100: General test methods for electrical and optical connection elements in aerospace applications.
• EN 3155-003 & EN 3155-015: Product standards for female electrical contacts used in connection elements.
• EN 3545-001: Technical specification for rectangular aerospace series connectors.
• EN 3545-002: Specification of performance and contact arrangements for aerospace electrical connectors.
• EN 3155-002: List and utilization guidance for electrical contacts in connection elements.

Implementing kSIST FprEN 3545-003:2026 supports standardized product selection, enhances system reliability, and ensures compliance with international aerospace sector requirements. By adhering to this standard, organizations ensure consistency, safety, and performance in their electrical connector applications across a variety of challenging environments.

SLOVENSKI STANDARD
oSIST prEN 3545-003:2025
01-januar-2025
Aeronavtika - Konektorji, električni, pravokotni, s tesnilno kapo ali brez nje,
plastičnim ohišjem, zapornim mehanizmom, z delovno temperaturo med –55 °C in
175 °C - 003. del: Konektorji z ženskim kontaktom - 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 003:
Connectors with female contacts - Product standard
Luft- und Raumfahrt - Elektrische Rechtecksteckverbinder mit und ohne hintere
Abdichtung, Plastikgehäuse, Verriegelungssystem, Betriebstemperaturen von -55 °C bis
175 °C - Teil 003: Steckverbinder mit Buchsenkontakten - 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 003 : Connecteurs à contacts femelles - Norme de produit
Ta slovenski standard je istoveten z: prEN 3545-003
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 3545-003:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 3545-003:2025
oSIST prEN 3545-003:2025
DRAFT
EUROPEAN STANDARD
prEN 3545-003
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2024
ICS 49.060 Will supersede EN 3545-003:2005
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 003:
Connectors with female contacts - 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 003 : Connecteurs Betriebstemperaturen von -55 °C bis 175 °C - Teil 003:
à contacts femelles - Norme de produit Steckverbinder mit Buchsenkontakten - 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
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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 3545-003:2024 E
worldwide for CEN national Members.

oSIST prEN 3545-003:2025
prEN 3545-003:2024 (E)
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 Recommended panel cut-out for connectors fitted with male coding and attachment
system . 7
4.3 Main general characteristics . 7
5 Designation . 8
6 Delivery conditions . 9
7 Marking . 9
8 Technical specification . 9
Bibliography . 10

oSIST prEN 3545-003:2025
prEN 3545-003:2024 (E)
European foreword
This document (prEN 3545-003:2024) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 3545-003:2005.
This document includes the following significant technical changes with respect to EN 3545-003:2005:
— Clause 5 Designation: differentiation between cadmium plated and zinc-nickel plated connectors and
introduction of corresponding coding;
— ed
...