oSIST prEN 3646-011:2026

• Abstract:

  This document specifies the characteristics of dummy receptacles in the family of bayonet coupling circular connectors, intended for use in an operating temperature range of −65 °C to 175 °C or 200 °C continuous.; It applies to models specified in Table 3.; For plugs associated with these dummy receptacles, see EN 3646 008.

• Status: Not Published
• Public Enquiry End Date: 09-Oct-2026
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 12-Aug-2026
• Due Date: 30-Dec-2026
• Ref Project: prEN 3646-011 - Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous - Part 011: Dummy receptacle - Product standard

• Revises: SIST EN 3646-011:2009 - Aerospace series - Connectors, electrical, circular, bayonet coupling, operating temperature 175 °C or 200 °C continuous - Part 011: Dummy receptacle - Product standard
• Effective Date: 12-Feb-2025

oSIST prEN 3646-011:2026 is a draft CEN European Standard for aerospace electrical circular connectors with bayonet coupling. It specifies the characteristics of dummy receptacles for this connector family, for use at a continuous operating temperature of -65 °C to 175 °C or 200 °C continuous, and it is aimed at designers, manufacturers, quality teams, and buyers working with EN 3646 series hardware.

What does oSIST prEN 3646-011:2026 specify?

oSIST prEN 3646-011:2026 specifies the characteristics of dummy receptacles in the family of bayonet coupling circular connectors. It applies to the models listed in Table 3 and points readers to EN 3646-008 for the associated plugs.

The document is organized into these main parts:

• Scope
• Normative references
• Terms and definitions
• Required characteristics
• Designation
• Marking
• Technical specification
• Bibliography

Table 3 groups the available model codes and their intended temperature class and surface finish.

Model code	What it covers
A	Black anodized aluminium alloy, maximum operating temperature 200 °C continuous
RS	Nickel-plated aluminium alloy, maximum operating temperature 200 °C continuous
WS	Olive green cadmium plated aluminium alloy, maximum operating temperature 175 °C continuous

What are the key requirements of oSIST prEN 3646-011:2026?

oSIST prEN 3646-011:2026 focuses on geometry, mounting, material/finish, mating compatibility, polarization, and identification. For users, that means the document is mainly a product definition standard: it tells you what to design, what to check on the finished part, and what to put on the part and packaging.

Dimensions, mass, and interface

Clause 4.1 ties dimensions and mass to Figure 1, Table 1, the optional figure, and Figure 3. The dimensions and tolerances are given in millimetres and apply after surface treatment, so inspection has to be done on the finished item, not only on the raw body. Interface dimensions are governed by EN 3646-001, which keeps the part aligned with the common series interface.

Panel mounting

Clause 4.2 gives the recommended panel cut-out in Figure 2 and Table 2 for front and rear mounting. This is the information installers need when preparing the panel opening and fixing holes, so the receptacle fits the intended mounting arrangement.

Materials and surface treatment

Clause 4.3 sends material and surface treatment to Table 3. The table separates the available model codes A, RS, and WS by alloy finish and temperature class, which helps procurement and engineering select a version that matches the environment and finish requirement.

General characteristics and combinations

Clauses 4.4 and 4.5 refer to EN 3646-002 for the main general characteristics and for possible combinations of dummy receptacles and connectors. In practice, EN 3646-002 is the place to confirm broader series compatibility and the associated performance description.

Polarization

Clause 4.6 gives polarization for the optional figure and refers to Figure 3 and EN 3646-001 for L, M and α. This matters when the part needs a defined orientation to reduce the risk of incorrect assembly.

Designation, marking, and technical specification

Clause 5 provides the designation method. Clause 6 requires marking on the product and on individual packaging, including the manufacturer’s part number, the date of manufacture shown as year and week, and the manufacturer’s name or trademark. Clause 7 sends the technical specification to EN 3646-001, so that document carries the series-level technical control.

What terms does oSIST prEN 3646-011:2026 define?

• Dummy receptacle - The product covered by this standard, used within the bayonet coupling circular connector family.
• Bayonet coupling - The coupling style used by this aerospace connector family, forming part of the interface definition.
• Operating temperature - The continuous temperature range stated for this product family, from -65 °C to 175 °C or 200 °C continuous.
• Panel cut-out - The opening and fixing-hole layout needed to mount the receptacle in a panel.
• Polarization - The feature that defines the permitted orientation for the optional design.
• Identity block - The designation block defined in Clause 5 and used in marking and packaging.
• Technical specification - The series-level specification in EN 3646-001 that supports the product standard.

Who uses oSIST prEN 3646-011:2026?

Aerospace connector manufacturers use oSIST prEN 3646-011:2026 to define the dummy receptacle design, materials, finish, and marking. Designers and installation engineers use it when planning panel mounting and compatibility with the rest of the EN 3646 connector family.

Quality and inspection teams use it to check dimensions, surface treatment, and traceability marking on the finished product. Buyers and procurement teams use it to identify the right model code and operating temperature class for a given application.

What changed in oSIST prEN 3646-011:2026 from the previous edition?

oSIST prEN 3646-011:2026 will supersede EN 3646-011:2006. The listed technical changes are updated normative references, introduction of an optional design with corresponding dimensional information, and editorial revision of the document.

Which standards are used with oSIST prEN 3646-011:2026?

oSIST prEN 3646-011:2026 relies on the following standards and companion parts:

Standard	Contribution
EN 3646-001	Technical specification, terms and definitions, interface dimensions, and references used for polarization and marking-related features
EN 3646-002	Specification of performance and contact arrangements, plus main general characteristics and combinations of dummy receptacles and connectors
EN 3646-008	Plug product standard for the plugs associated with these dummy receptacles
EN 3646-009	Protective cover for receptacle product standard, listed as a related part in the bibliography

What does the oSIST prEN 3646-011:2026 document contain?

The document contains dimensional drawings, including the main receptacle dimensions, the panel cut-out, and the optional polarization figure. It also includes Tables 1 to 3 for dimensions, mounting cut-out data, and model/material-surface combinations.

Clause 5 gives the designation method and an example format. Clause 6 sets the marking information for the product and for individual packaging, which supports traceability in production and supply.

Clause 7 points to EN 3646-001 for the technical specification. The bibliography also points readers to the associated plug standard and the protective cover for receptacle standard.

SLOVENSKI STANDARD
01-oktober-2026
Aeronavtika - Konektorji, električni, okrogli, bajonetno sklapljanje, stalna delovna
temperatura 175 °C ali 200 °C - 011. del: Slepa doza - Standard za proizvod
Aerospace series - Connectors, electrical, circular, bayonet coupling, operating
temperature 175 °C or 200 °C continuous - Part 011: Dummy receptacle - Product
standard
Luft- und Raumfahrt - Elektrische Rundsteckverbinder mit Bajonettkupplung,
Betriebstemperatur 175 °C oder 200 °C konstant - Teil 011: Blinddose - Produktnorm
Série aérospatiale - Connecteurs électriques circulaires à accouplement par baïonnettes,
température d'utilisation 175 °C ou 200 °C continu - Partie 011 : Embase de repos -
Norme de produit
Ta slovenski standard je istoveten z: prEN 3646-011
ICS:
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.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2026
ICS 49.060 Will supersede EN 3646-011:2006
English Version
Aerospace series - Connectors, electrical, circular, bayonet
coupling, operating temperature 175 °C or 200 °C
continuous - Part 011: Dummy receptacle - Product
standard
Série aérospatiale - Connecteurs électriques circulaires Luft- und Raumfahrt - Elektrische Rundsteckverbinder
à accouplement par baïonnettes, température mit Bajonettkupplung, Betriebstemperatur 175 °C oder
d'utilisation 175 °C ou 200 °C continu - Partie 011 : 200 °C konstant - Teil 011: Blinddose - Produktnorm
Embase de repos - Norme de produit
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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3646-011:2026 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 and mass . 4
4.2 Panel cut-out . 5
4.3 Material and surface treatment . 6
4.4 Main general characteristics . 6
4.5 Possible combinations of dummy receptacles and connectors . 6
4.6 Polarization for optional figure . 6
5 Designation . 7
6 Marking . 7
6.1 Marking on the product . 7
6.2 Marking on the individual packaging . 8
7 Technical specification . 8
Bibliography . 9

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