BS EN 3155-027:2015 BSI Standards Publication Aerospace series — Electrical contacts used in elements of connection Part 027: Contacts, electrical, female, type A, crimp, class R — Product standard BS EN 3155-027:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 3155-027:2015 It supersedes BS EN 3155-027:2006 which is withdrawn The UK participation in its preparation was entrusted to Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2015 Published by BSI Standards Limited 2015 ISBN 978 580 89609 ICS 49.060 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2015 Amendments/corrigenda issued since publication Date Text affected BS EN 3155-027:2015 EN 3155-027 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM October 2015 ICS 49.060 Supersedes EN 3155-027:2006 English Version Aerospace series - Electrical contacts used in elements of connection - Part 027: Contacts, electrical, female, type A, crimp, class R - Product standard Série aérospatiale - Contacts électriques utilisés dans les organes de connexion - Partie 027: Contacts électriques, femelles, type A, sertir, classe R - Norme de produit Luft- und Raumfahrt - Elektrische Kontakte zur Verwendung in Verbindungselementen - Teil 027: Elektrische Buchsenkontakte, Typ A, crimpbar, Klasse R - Produktnorm This European Standard was approved by CEN on June 2015 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 concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member This European Standard exists 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 3155-027:2015 E BS EN 3155-027:2015 EN 3155-027:2015 (E) Contents Page European foreword Introduction Scope Normative references Terms and definitions 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 Required characteristics Specific characteristics Dimensions and mass Marking by colour code Material, surface treatment Permissible cables Tooling Cable stripping 10 Tests 11 Designation 13 Marking 13 Technical specification 13 BS EN 3155-027:2015 EN 3155-027:2015 (E) European foreword This document (EN 3155-027:2015) 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 Standard 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 European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2016, and conflicting national standards shall be withdrawn at the latest by April 2016 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights This document supersedes EN 3155-027:2006 According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom BS EN 3155-027:2015 EN 3155-027:2015 (E) Introduction The contacts defined by this standard are derived from those of SAE-AS39029/94 and intermateable with those of SAE-AS39029/93 Scope This European Standard specifies the required characteristics and tests applicable to female contacts 027, type A, crimp, class R, used in elements of connection according to EN 3155-002 The associated male contacts are defined in EN 3155-026 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application 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 and copper alloy conductors for electrical cables — Product standard EN 2591 *, 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 3155-026, Aerospace series — Electrical contacts used in elements of connection — Part 026: Contacts, electrical, male, type A, crimp, class R — Product standard EN 3682-001, Aerospace series — Connectors, plug and receptacle, electrical, rectangular, interchangeable insert type, rack to panel, operating temperature 150 °C continuous — Part 001: Technical specification ISO 8843, Aircraft — Crimp-removable contacts for electrical connectors — Identification system MIL-C-22520/2, Crimping tools, terminal, hand, wire termination for wire barrel sizes 20 through 28 1) MIL-C-22520/7, Crimping tools, terminal, hand, wire termination for wire barrel sizes 16, 20 and 22 1) SAE-AS22520, Crimping tools, wire termination, general specification for 2) SAE-AS22520/1, Crimping tools, terminal, hand, wire termination for wire barrel sizes 12 through 20 2) SAE-AS39029, Contacts, electrical connector, general specification for 2) SAE-AS39029/93, Contacts, electrical connector, pin, crimp removable, (for DOD-C-83527, connectors) 2) * All parts quoted in this standard 1) Published by: DoD National (US) Mil Department of Defense http://www.defenselink.mil/ 2) Published by: SAE National (US) Society of Automotive Engineers http://www.sae.org/ BS EN 3155-027:2015 EN 3155-027:2015 (E) SAE-AS39029/94, Contacts, electrical connector, socket, crimp removable, (for DOD-C-83527, connectors) 2) SAE-AS81969, Installing and removal tools, connector electrical contact, general specification for 2) SAE-AS81969/1, Installing and removal tools, connector electrical contact, type III, class 2, composition C 2) SAE-AS81969/28, Installing and removal tools, connector electrical contact, type II, class 2, composition C 2) Terms and definitions For the purposes of this document, the terms and definitions given in EN 3155-001 apply Required characteristics 4.1 Specific characteristics Type A contacts are for general application and class R corresponds to an operating temperature range from − 65 °C to 150 °C 4.2 Dimensions and mass See Figures and and Table Dimensions and tolerances are given in millimetres and apply after surface treatment BS EN 3155-027:2015 EN 3155-027:2015 (E) Ø 0,05 Ø General concentricity Contact size 22 and 20 Contact size 16 and 12 Key T, see Note U, see Note Hole ∅ H Radius K Ø 0,10 Ø A Ø 0,15 Ø A Ø 0,08 Ø B Ø 0,10 Ø B Colours bands, see Table Radius J Radius 0,1 NOTE Point at which a square ended gauge pin of the same diameter as the mating contact first engages the female contact spring member NOTE This dimension represents both the length of the bore ∅ E which includes the active zone of protection (ref EN 3155-001, 5.3.2) Figure — Contact dimensions Key Chamfer or radius Figure — Barrel, contacts 22-22 BS EN 3155-027:2015 EN 3155-027:2015 (E) Key Colour bands, see Table Chamfer or radius Figure — Barrel, contacts 12-12, 16-16 and 20-20 (optional) BS EN 3155-027:2015 EN 3155-027:2015 (E) Table — Contact dimensions Size A B C D Contact Barrel 22 22 1,32 1,27 0,95 0,86 1,78 1,73 1,55 1,50 16 16 2,62 2,57 1,73 1,68 3,40 3,30 2,87 2,69 20 1,73 1,65 20 12 3,84 3,76 12 Size N 1,17 1,09 2,13 2,08 2,59 2,49 4,83 4,72 P S Contact Barrel 22 22 4,19 3,43 6,02 5,87 10,41 10,19 16 16 7,37 6,35 6,53 6,22 18,24 18,03 20 4,83 3,81 20 12 7,37 6,35 12 4,19 3,94 19,05 18,92 6,53 6,22 18,24 18,03 1,88 1,73 4,09 4,01 E 0,56 0,46 0,05 1,63 2,29 2,03 1,07 0,91 0,08 1,05 2,43 max 8,26 1,04 11,89 J° 1,19 1,04 U 11,89 H 0,79 T 7,11 G 1,47 1,32 3,56 3,30 X 0,84 0,64 1,07 0,91 Z 1,09 0,86 0,74 4,09 3,35 1,52 1,22 1,12 2,11 1,75 1,52 0,86 0,74 1,22 1,12 0,05 0,08 AA — 1,75 1,37 1,83 1,68 2,11 1,75 4,01 3,94 2,82 2,72 K M max 0,08 0,08 0,13 0,13 — 2,72 3,81 3,81 FF Mass max 1,42 0,37 1,09 2,18 2,95 g 0,16 0,76 1,60 4.3 Marking by colour code See Table Table — Contact colour code Two bands according to ISO 8843 Three bands according to SAE-AS39029/94 Size Contact Barrel Band Band Band Band Band 22 22 Green Green Blue Black Brown 16 16 Blue Blue Blue Black Orange 20 12 20 12 Red Yellow Red Yellow Blue Blue Black Black Red Yellow BS EN 3155-027:2015 EN 3155-027:2015 (E) 4.4 Material, surface treatment Body material : copper alloy Surface treatment : gold on appropriate undercoat, thickness of protection not specified, selective protection permitted 4.5 Permissible cables See Table Table — Permissible cables Size Contact Size of conductors Barrel 22 20 a 22 20 16 16 12 12 AWG = Corresponding American wire gage ASD code 004 002 001 006 004 002 012 010 006 030 020 Section mm2 AWG a Rated test current A 0,25 24 0,4 0,15 0,6 0,4 0,25 1,2 0,6 22 26 20 22 24 16 18 20 12 14 7,5 13 11 7,5 23 17 4.6 Tooling 4.6.1 Crimping tools Conform to SAE-AS22520, see Table The qualification selector numbers used for crimping copper or copper alloy conductors in cables EN 2083 are indicated in Table It is the user responsability if the parameters in Table are changed for service use BS EN 3155-027:2015 EN 3155-027:2015 (E) Table — Crimping tools Contact Cable size Contac Barrel t size size 22 20 22 20 16 16 12 12 a ASD code AWG a 001 26 004 22 002 24 004 20 006 20 010 16 020 14 030 12 AWG: nearest American Wire Gage 4.6.2 Positioner Positioner Positioner M22520/102 blue 18 012 Tools M22520/7-01 Not Applicable 22 006 Tools M22520/2-01 Not Applicable 24 002 Tools M22520/1-01 M22520/111 Selector number – – – – – – Selecto r numbe r M22520/223 M22520/208 Not applicable Not applicable 3 – – – – – Selecto r numbe r Not applicable M22520/702 M22520/703 Not applicable – – – 6 – – Insertion / extraction tools Conform to SAE-AS81969 See Table Table — Insertion / Extraction tools Size Extraction tools 22 M81969/1-01 M81969/1-01 16 M81969/1-03 M81969/1-03 Barrel 22 16 20 12 4.7 Cable stripping See Table 10 Insertion tools Contact 20 12 M81969/1-02 — M81969/1-02 M81969/28-02 BS EN 3155-027:2015 EN 3155-027:2015 (E) Table — Cable stripping Size Contact Barrel 22 22 16 16 20 4.8 Tests Stripped length of cable mm ± 0,5 3,5 20 12 12 See Table Table — Tests Applicable EN 2591- Test Not According applicable to EN 3155001 101 Visual examination X 201 Contact resistance - low level X 102 202 203 204 206 207 210 211 212 220 301 Examination of dimensions and mass Contact resistance at rated current X Electrical continuity at microvolt level X Measurement of insulation resistance X Discontinuity of contacts in the microsecond range Voltage proof test Electrical overload X Capacitance X Contact/conductor joint ageing by current and temperature cycling X Surface transfer impedance Endurance at temperature Rapid change of temperature 306 Mould growth X 315 Fluid resistance X Salt mist See 4.2 X X X X 305 307 Remarks X X T = (150 + 50 ) °C Duration: 000 h TA = (150 + 50 ) °C TB = (− 65 + 50 ) °C X 11 BS EN 3155-027:2015 EN 3155-027:2015 (E) 316 Ozone resistance 402 Shock 319 X X 403 Sinusoidal and random vibration X 415 Test probe damage (female contacts) X 406 416 417 418 424 425 501 502 503 507 508 509 513 514 12 Gastightness of solderless wrapped connections X Mechanical endurance Contact bending strength Tensile strength (crimped connection) Gauge insertion / extraction forces (female contact) X X Stripping force, solderless wrapped connections X Soft soldering X Unwrapping, solderless wrapped connections Restricted entry X X X X Plating porosity X Measurement of thickness of coating on contacts X Adhesion of coating on contacts Solderability of contacts with self-contained solder and flux According to EN 3682001 subclause 7.2.2 X Contact deformation after crimping Magnetic permeability Severity 30, method A – see EN 3682-001 Figures 37, 38 and 39 X X X The measured thickness shall be recorded BS EN 3155-027:2015 EN 3155-027:2015 (E) Designation EXAMPLE Description block CONTACT ELECTRICAL Identity block EN3155-027F2020 Standard number Type of contact: F: female contact with two colour bands according to ISO 8843 or three color bands according to AS 39029 S: female contact with three colour bands according to AS 39029 X: female contact with two colour bands according to ISO 8843 Contact size (see Table 1) Barrel size (see Table 1) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block Marking See EN 3155-001 Technical specification See EN 3155-001 13 This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is incorporated by Royal Charter British Standards and other standardization products are published by BSI Standards Limited About us Revisions We bring 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