FprEN 3155-003

Aerospace series - Electrical contacts used in elements of connection - Part 003: Contacts, electrical, female, type A, crimp, class S - Product standard

This document specifies the required characteristics, tests and tooling applicable to female electrical contacts 003, type A, crimp, class S used in elements of connection according to EN 3155 002.
It is used together with EN 3155 001.
The associated male contacts are specified in EN 3155 008.

Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 003: Elektrische Buchsenkontakte, Typ A, crimpbar, Klasse S - Produktnorm

No Scope Available

Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 003 : Contacts électriques, femelles, type A, à sertir, classe S - Norme de produit

No Scope Available

Aeronavtika - Električni kontakti za vezne elemente - 003. del: Kontakti, električni, ženski, tip A, kodrasti, razred S - Standard za proizvod

General Information

• Status: Not Published
• Publication Date: 26-Oct-2025
• 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: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Start Date: 31-Mar-2025
• Completion Date: 31-Mar-2025
• Ref Project: kSIST FprEN 3155-003:2024 - Aerospace series - Electrical contacts used in elements of connection - Part 003: Contacts, electrical, female, type A, crimp, class S - Product standard

Relations

• Revises: EN 3155-003:2019 - Aerospace series - Electrical contacts used in elements of connection - Part 003: Contacts, electrical, female, type A, crimp, class S - Product standard
• Effective Date: 21-Dec-2022
• Revised: EN 3155-003:2005 - Aerospace series - Electrical contacts used in elements of connection - Part 003: Contacts, electrical, female, type A, crimp, class S - Product standard
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 3155-003:2023
01-marec-2023
Aeronavtika - Električni kontakti za vezne elemente - 003. del: Kontakti, električni,
ženski, tip A, kodrasti, razred S - Standard za proizvod
Aerospace series - Electrical contacts used in elements of connection - Part 003:
Contacts, electrical, female, type A, crimp, class S - Product standard
Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen -
Teil 003: Elektrische Buchsenkontakte, Typ A, crimpbar, Klasse S - Produktnorm
Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie
003 : Contacts électriques, femelles, type A, à sertir, classe S - Norme de produit
Ta slovenski standard je istoveten z: prEN 3155-003
ICS:
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
oSIST prEN 3155-003:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 3155-003:2023
oSIST prEN 3155-003:2023
DRAFT
EUROPEAN STANDARD
prEN 3155-003
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2022
ICS 49.060 Will supersede EN 3155-003:2019
English Version
Aerospace series - Electrical contacts used in elements of
connection - Part 003: Contacts, electrical, female, type A,
crimp, class S - Product standard
Série aérospatiale - Contacts électriques utilisés dans Luft- und Raumfahrt - Elektrische Kontakte zur
les organes de connexion - Partie 003 : Contacts Verwendung in Verbindungselementen - Teil 003:
électriques, femelles, type A, à sertir, classe S - Norme Elektrische Buchsenkontakte, Typ A, crimpbar, Klasse
de produit S - 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
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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3155-003:2022 E
worldwide for CEN national Members.

oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
Contents Page
European foreword . 3
4.1 Specific characteristics . 5
4.2 Dimensions and mass . 5
4.3 Marking by colour code . 11
4.4 Material, surface treatment . 11
4.5 Permissible cables . 12
4.6 Tooling . 13
4.7 Cable stripping . 16
4.8 Tests . 16
4.9 Gauges . 20
Bibliography . 21

oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
European foreword
This document (prEN 3155-003:2022) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (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, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 3155-003:2019.
oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
1 Scope
This document specifies the required characteristics, tests and tooling applicable to female electrical
contacts 003, type A, crimp, class S used in elements of connection according to EN 3155-002.
It is used together with EN 3155-001.
The associated male contacts are defined in EN 3155-008.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2083, Aerospace series — Copper or copper alloy conductors for electrical cables — Product standard
EN 2591 (all parts), Aerospace series — Elements of electrical and optical connection — Test methods
EN 3155-001, Aerospace series — Electrical contacts used in elements of connection — Part 001:
Technical specification
EN 3155-002, Aerospace series — Electrical contacts used in elements of connection — Part 002: List and
utilization of contacts
EN 3545-001, Aerospace series — Connectors, electrical, rectangular, with sealed and non-sealed rear,
plastic housing, locking device, operating temperatures -55 °C to 175 °C — Part 001: Technical
specification
EN 4165-001, Aerospace series — Connectors, electrical, rectangular, modular — Operating temperature
175 °C continuous — Part 001: Technical specification
EN 4434, Aerospace series — Copper or copper alloy lightweight conductors for electrical cables —
Product standard (Normal and tight tolerances)
1)
ISO 8843, Aircraft — Crimp-removable contacts for electrical connectors — Identification system
2)
SAE-AS22520, Crimping tools, wire termination, general specification for
2)
SAE-AS81969, Installing and removal tools, connector electrical contact, general specification for
3)
TR 4837, Aerospace series — Applicable crimping tools for electrical contact product standards
EN 3155-003, EN 3155-008 and EN 3155-009 for contact size # 10 and barrel size # 10 only
TR 4843, ) Aerospace series — Applicable crimping tools for electrical contact product standards
EN 3155-003, EN 3155-008 and EN 3155-009 for contact size #20 and barrel size #22 only
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 3155-001 apply.

1)
Published by: ISO International Organization for Standardization http://www.iso.ch/.
2)
Published by: SAE International (US) https://www.sae.org/.
3)
Published as ASD-STAN Technical Report at the date of publication of this standard by AeroSpace and Defence
industries Association of Europe - Standardization (ASD-STAN) (www.asd-stan.org).
4)
In preparation at the date of publication of this document.
oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
4 Required characteristics
4.1 Specific characteristics
Type A contacts are for general application and class S corresponds to an operating temperature range
from -65 °C to 200 °C.
4.2 Dimensions and mass
See Figure 1 to Figure 8 and Table 1.
Dimensions and tolerances are given in millimetres and apply after surface treatment.

oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
Concentricity
between Ø C
Ø Ø General Ø
and Ø D for
0,1 concentricity 0,08
size 22 & 23
contacts
Ø Concentricity between Ø C and Ø D for all size contacts except

0,025 size 22 & 23
Key
1 Position of the first point and the maximum length of electrical contact (point at which a square ended
minimum gauge pin of the same basic diameter as the mating contact first engages the female
contact spring member) (See EN3155-001 for active area definition)
2 Colour bands, see Table 2
3 One side only
4 Manufacturer identification
5 This dimension represents the length to allow full pin engagement
6 Ø A represents the bore
7 Break allowed
8 Clearance between sleeve and body of the contact 0,15 max. for contact size 22 & 23, 0,25 max. for
other contacts
9 Not applicable for barrel size 22, contact size 22 & 23 (the arrow should point on dimension H)
Figure 1 — Connector contact
oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
Figure 2 — Detail S – Contact size 22 and 23, barrel size 22

Key
1 Identification groove (optional)
2 Retention groove
Figure 3 — Detail T – Contact size 22 and 23, barrel size 22

Figure 4 — Detail U – Contact size 20, barrel size 22
oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
Figure 5 — Detail V – Contact size 12, barrel size 14

Figure 6 — Detail W – Contact size 10

oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
Optional design
Key Key
1  The max entry diameter shall be compliant with the 1  One full radius permissible
value defined in EN 3155-001 test EN 2591-502
2  The max entry diameter shall be compliant with the
“Restricted entry”
value defined in EN 3155-001 test EN 2591-502
“Restricted entry”
Figure 7 — Detail X
Key
1 Position of the first point and the maximum length of electrical contact (point at which a square ended
minimum gauge pin of the same basic diameter as the mating contact first engages the female contact
spring member)
2 Female active area: See EN 3155-001 for definition
Figure 8 — Detail Y – Active area

oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
Table 1 — Connector contact
Ø A Ø B Ø C Ø D Ø E Ø F G H J P S Ø T α° Mass
Size
g
Contact Barrel min.     max.      min.  max.
1,57 1,22 0,90 0,56 4,05 0,13 6,02 7,34 50
23 22 0,71 1,28 − 0,94 0,15
1,52 1,17 0,85 0,46 3,58 0,05 5,87 7,09 40
1,57 1,22 0,90 0,56 4,05 0,13 6,02 7,34 50
22 22 0,78 1,57 − 1,19 0,15
1,52 1,17 0,85 0,46 3,58 0,05 5,87 7,09 44
2,39 1,78 0,90 0,56 4,05 0,13 6,02 7,34 47
20 22 1,05 1,98 − 1,35 0,25
2,31 1,73 0,85 0,46 3,58 0,05 5,87 7,09 28
2,39 1,78 1,22 0,81 5,82 1,98 0,25 6,02 7,34 47
20 20 1,05 1,98 1,35 0,25
2,31 1,73 1,17 0,66 5,31 1,83 0,05 5,87 7,09 28
2,39 1,78 1,35 0,81 5,82 1,98 0,25 6,02 7,34 47
20 18 1,05 1,98 1,35 0,24
2,31 1,73 1,30 0,66 5,31 1,83 0,05 5,87 7,09 28
3,30 2,62 1,73 1,07 5,82 2,24 0,25 6,02 7,34 47
16 16 1,63 2,90 2,13 0,40
3,23 2,57 1,68 0,91 5,31 2,08 0,05 5,87 7,09 28
3,30 2,62 1,87 1,07 5,82 2,24 0,25 6,02 7,34 47
16 14 1,63 2,90 2,13 0,40
3,23 2,57 1,82 0,91 5,31 2,08 0,05 5,87 7,09 28
4,62 3,84 2,59 1,07 5,82 2,24 0,41 6,02 7,34 47
12 12 2,43 4,09 3 0,80
4,55 3,76 2,49 0,91 5,31 2,08 0,05 5,87 7,09 28
4,62 3,84 1,87 0,80 5,82 1,74 0,41 6,02 7,34
12 14 2,43 4,09 − − 0,80
4,55 3,76 1,82 0,70 5,31 1,64 0,05 5,87 7,09
6,15 5,41 3,56 1,32 9,78 2,24 0,41 10,29 7,34 47
10 10 3,21 5,46 3,6 1,70
6,05 5,26 3,40 1,02 9,02 2,08 0,05 10,03 7,09 28

oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
4.3 Marking by colour code
See Table 2.
Table 2 — Marking by colour code

Colour identification bands
according to ISO 8843
Size
a
Contact Barrel ① Band 1
Band 2
②
23 22 Purple Green
22 22 Green Green
20 22 Red Green
20 20 Red Red
b
20 18 Red
Brown
16 16 Blue Blue
c
16 14 Blue
White
12 12 Yellow Yellow
c
12 14 Yellow
White
10 10 White Brown
As an alternative, when the two band colours are the same, only one band of
2 mm width nominal can be applied.
a
The width of the band 2 shall be twice the width of the band 1.
b
Violet colour band not to be used for new manufacture.
c
Orange colour band not to be used for new manufacture.
4.4 Material, surface treatment
— Body material: copper alloy.
— Surface treatment: gold on an appropriate undercoat, thickness of protection see EN 3155-001,
selective protection permitted.
oSIST prEN 3155-003:2023
prEN 3155-003:2022 (E)
4.5 Permissible cables
See Table 3.
Table 3 — Permissible cables (1 of 2)
Size Size of conductors
Rated test
current
ASD Section
a
Contact Barrel
AWG
A
code mm
004 0,40 22 5
...