1、BSI Standards PublicationBS EN 2665-004:2013Aerospace series Circuitbreakers, three-pole,temperature compensated,rated current 20 A to 50 APart 004: UNC thread terminals ProductstandardBS EN 2665-004:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 2665-004:
2、2013.It supersedes BS EN 2665-004:1999 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can beobtained on request to its secretary.This pu
3、blication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 83444 8ICS 49.060Compliance with a British Standard cannot confer immunity f
4、romlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2013.Amendments issued since publicationDate Text affectedBS EN 2665-004:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2665-004 December 2013 ICS 49.06
5、0 English Version Aerospace series - Circuit breakers, three-pole, temperature compensated, rated current 20 A to 50 A - Part 004: UNC thread terminals - Product standard Srie arospatiale - Disjoncteurs tripolaires compenss en temprature, intensits nominales 20 A 50 A - Partie 004 : Bornes filetage
6、UNC - Norme de produit Luft- und Raumfahrt - Schutzschalter, dreipolig, temperaturkompensiert, Nennstrme von 20 A bis 50 A - Teil 004: UNC-Klemmengewinde - Produktnorm This European Standard was approved by CEN on 28 September 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regul
7、ations 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 membe
8、r. 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. CE
9、N 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,
10、Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in a
11、ny form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2665-004:2013 EBS EN 2665-004:2013EN 2665-004:2013 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Dimensions and mass .4 5 Characteristics .6 6 Designation . 11 7 Rated c
12、urrent code . 11 8 Delivery codes . 11 9 Marking 12 10 Technical specification 12 BS EN 2665-004:2013EN 2665-004:2013 (E) 3 Foreword This document (EN 2665-004:2013) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and vote
13、s 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, ei
14、ther by publication of an identical text or by endorsement, at the latest by June 2014, and conflicting national standards shall be withdrawn at the latest by June 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or C
15、ENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 2665-004:1999. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Be
16、lgium, 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, Swit
17、zerland, Turkey and the United Kingdom. BS EN 2665-004:2013EN 2665-004:2013 (E) 4 1 Scope This European Standard specifies the characteristics of three-pole circuit breakers, temperature compensated with a rated current from 20 A to 50 A, used in aircraft on-board circuits at a temperature between 5
18、5 C and 90 C at an altitude of 15 000 m max. These circuit breakers are operated by a push-pull type single pushbutton (actuator), with delayed action “trip-free“ tripping They will continue to function up to the short-circuit current. 2 Normative references The following documents, in whole or in p
19、art, 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 2350, Aerospace series Circuit breakers Techn
20、ical specification EN 2665-001, Aerospace series Circuit breakers, three-pole, temperature compensated, rated currents 20 A to 50 A Part 001: Technical specification EN 3841-305, Aerospace series Circuit breakers Test methods Part 305: Short-circuit performance EN 6113, Aerospace series Circuit brea
21、ker, connecting and attachment hardware 1)TR 6083, Aerospace series Cut-outs for installation of electrical components 2)FED-STD-595B, Colors used in Government Procurement 3)3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 2350 apply. 4 Dimensions and
22、 mass 4.1 Dimensional characteristics The circuit breakers do not have to correspond to the pictorial illustration, only the dimensions given shall be adhered to. Dimensions are in millimetres with exception terminal thread 8-32 UNC. See Figure 1. 1) Published as ASD-STAN Prestandard at the date of
23、publication of this standard. http:/www.asd-stan.org/ 2) Published as ASD-STAN Technical Report at the date of publication of this standard. http:/www.asd-stan.org/ 3) Published by: DoD National (US) Mil. Department of Defense http:/www.defenselink.mil/ BS EN 2665-004:2013EN 2665-004:2013 (E) 5 Key
24、1 Push button released 7 Lock washer 2 Black colour according to FED-STD-595B 8 1,0 max. to 3,0 max. 3 White 9 Positioning lug in accordance with the panel cut-out, as per TR 6083C202 4 Marking, see Clause 6. 5 Push button pressed 10 Rated current marking (white on black) 6 Attachment nut Figure 1 C
25、onfiguration Dimensions Tolerances BS EN 2665-004:2013EN 2665-004:2013 (E) 6 4.2 Electrical diagram See Figure 2. Push button released: CB open. Push button pressed: CB closed. Key 1 Load 2 Supply Load and supply can be inverted. Figure 2 Electrical diagram 4.3 Mass 162 g max. (delivery code A inclu
26、ding hardware). 4.4 Panel mounting See EN 2665-001. 5 Characteristics 5.1 Material, surface treatment See EN 2665-001. 5.2 Mechanical characteristics 5.2.1 Fasteners See EN 6113. BS EN 2665-004:2013EN 2665-004:2013 (E) 7 5.2.2 Recommended tightening torque of attaching nut for installation (5,25 0,2
27、5) Nm 5.2.3 Recommended tightening torque of connection hardware for installation (2,35 0,15) Nm 5.2.4 Resistance to vibrations 5.2.4.1 Combined test: ambient temperature at 70 C and vibrations Sinusoidal : 10 gn, see EN 2665-001. Random : 5,8 gn, see EN 2665-001. Low frequencies : 10 gn, see EN 266
28、5-001. 5.2.4.2 Combined test: ambient temperature at 85 C, altitude and vibrations Sinusoidal: 3 gn, see EN 2665-001. 5.2.5 Resistance to shocks 50 gn, see EN 2665-001. 5.2.6 Mechanical endurance See Table 6. 5.3 Environment characteristics 5.3.1 Humidity See EN 2665-001. 5.3.2 Corrosion See EN 2665
29、-001. 5.3.3 Contaminating liquids See EN 2665-001. 5.3.4 Overvoltage caused by lightning See EN 2665-001. BS EN 2665-004:2013EN 2665-004:2013 (E) 8 5.4 Electrical characteristics 5.4.1 Nominal voltage of operational circuits See Table 1. Table 1 Nominal voltage 115/200 V a.c., 360 Hz 800 Hz, three p
30、hase 5.4.2 Voltage drop at nSee Table 2. Table 2 Ratings A 20 25 30 35 40 45 50 U max. at n V 0,15 0,15 0,15 0,15 0,12 0,12 0,12 5.4.3 Minimum and maximum tripping thresholds See Table 3. Table 3 Overload (in % of n) Ambient temperatures Ratings Minimum thresholds value 1 h Maximum thresholds value
31、1 h C A On ground At 15 000 m On ground 23 5 All 110 105 145 55 5 110 105 165 70 5 105 100 145 90 5 100 90 145 NOTE 1 For detection of minimum threshold, all the poles are connected in series. NOTE 2 For detection of maximum threshold, load value is: increased by about 20 % when one pole is submitte
32、d to the load and other poles are not loaded; increased by about 10 % when two poles are submitted to the load and the other one is not loaded; not increased when the two other poles are loaded at 0,9 n. BS EN 2665-004:2013EN 2665-004:2013 (E) 9 5.4.4 Overload trip See Table 4. Table 4 Overload (in
33、% of n) 200 500 1 000 3 poles 1 pole 3 poles 1 pole 3 poles 1 pole Ambient temperatures C Ratings A Trip time s 23 5 All 2 to 20 2 to 22 0,15 to 4,00 0,15 to 5,20 0,05 to 1,00 0,06 to 1,30 55 5 60 110 90 5 1,5 1,5 NOTE 1 When 3 poles are loaded, they will be connected in series. NOTE 2 When 1 pole i
34、s loaded, the two other poles are not loaded. 5.4.5 Short-circuit values See Table 5. Table 5 Nominal voltage 115/200 V a.c., 360 Hz to 800 Hz Prospective currents 0,8 cos 1 2 000 A r.m.s. Test altitudes On the ground and at maximum altitude (15 000 m, 12 100 Pa) Number of operations 1 CO a + 2 OCO
35、b aBreak operation (for definition refer to EN 3841-305). bMake operation (for definition refer to EN 3841-305). BS EN 2665-004:2013EN 2665-004:2013 (E) 10 5.4.6 No-load and load endurance See Table 6. Table 6 Number of operations to be provided No-load Load 5 000 2 500 All ratings Main contacts App
36、licable Inductive 0,6 cos 0,7 n, 115/200 V a.c. - 360 Hz to 800 Hz NOTE 1 One operation corresponds to one closing + one opening. NOTE 2 Tolerances 5 % on current, voltage and frequency values. 5.4.7 Dielectric rigidity See Table 7. Table 7 Closed position Z = 0 m Z = 15 000 m A1, B1, C1 with attach
37、ment 1 500 V 400 V A1, A2 with B1, B2 and C1, C2 B1, B2 with A1, A2 and C1, C2 Open position Z = 0 m Z = 15 000 m A1, B1, C1 with A2, B2, C2 1 500 V 400 V A1, B1, C1, A2, B2, C2 with attachment A1, A2 with B1, B2 and C1, C2 B1, B2 with A1, A2 and C1, C2 5.4.8 Insulation resistance According to EN 26
38、65-001, Table 5. BS EN 2665-004:2013EN 2665-004:2013 (E) 11 6 Designation EXAMPLE Description block CIRCUIT BREAKER Identity block EN2665-004D20AA Number of this standard Design code, D: black button Rated current code (see Table 8) Delivery hardware code A (see Table 9) NOTE If necessary, the code
39、I9005 shall be placed between the description block and the identity block. 7 Rated current code See Table 8. Table 8 Ratings n20 25 30 35 40 45 50 Marking on actuator 20 25 30 35 40 45 50 Rated current code (A) 20 25 30 35 40 45 50 8 Delivery codes See Table 9. Table 9 Delivery hardware code Connec
40、tion and attachment hardware kits EN 6113 Delivery conditions Kit part-No. aIncluded parts Pieces per part Fitted Supplied separately A EN 6113C Connecting screw 6 X Connecting lock washer 6 Attachment nut 1 Attachment lock washer 1 B EN 6113B Attachment nut 1 X Attachment lock washer 1 aSpare parts
41、 could be ordered separately, informations see EN 6113. BS EN 2665-004:2013EN 2665-004:2013 (E) 12 9 Marking As defined on the drawing and unless otherwise specified by contract, marking shall include: the designation defined in Clause 6 on the packaging; the manufacture date (year, week): YYWW the
42、manufacturers name or trademark; the electrical diagram and the terminal identification; the manufacturers part number. NOTE The marking could be combined on the both opposite faces. For electrical diagram and/or terminal identification refer to the Figure 1. 10 Technical specification See EN 2665-0
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