1、BRITISH STANDARDBS EN 3661-005:2006Aerospace series Circuit breakers, single-pole, temperature compensated, rated current 20 A to 50 A Part 005: With polarized signal contact Product standardThe European Standard EN 3661-005:2006 has the status of a British StandardICS 49.060g49g50g3g38g50g51g60g44g
2、49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 3661-005:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on
3、 31 January 2007 BSI 2007ISBN 978 0 580 50007 7National forewordThis British Standard was published by BSI. It is the UK implementation of EN 3661-005:2006. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to
4、 Panel ACE/6/-/5, Aerospace Protection for electrical systems.A list of organizations represented on ACE/6/-/5 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.Compli
5、ance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 3661-005August 2006ICS 49.060English VersionAerospace series - Circuit breakers, single-pole, temperaturecompensated,
6、rated current 20 A to 50 A - Part 005: Withpolarized signal contact - Product standardSrie arospatiale - Disjoncteurs unipolaires compenss entemprature, intensits nominales 20 A 50 A - Partie 005: Avec contact de signalisation polaris - Norme de produitLuft- und Raumfahrt - Schutzschalter, einpolig,
7、Temperaturkompensiert, Nennstrme von 20 A bis 50 A -Teil 005: Mit polarisiertem Signalkontakt - ProduktnormThis European Standard was approved by CEN on 5 June 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStanda
8、rd the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, Ger
9、man). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denma
10、rk, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONE
11、UROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3661-005:2006: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Dimensions and ma
12、ss.4 4 Characteristics.6 5 Designation 10 6 Rated current code 11 7 Delivery codes11 8 Marking .11 9 Technical specification .11 EN 3661-005:20063 Foreword This European Standard (EN 3661-005:2006) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD
13、-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 s
14、tatus of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2007, and conflicting national standards shall be withdrawn at the latest by February 2007. Attention is drawn to the possibility that some of the elements of this document may be th
15、e subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgi
16、um, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 3661-005:20064 1 Scope Thi
17、s standard specifies the characteristics of single-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 55 C and 125 C and at an altitude of 15 000 m max. These circuit breakers are operated by a push-pull
18、type single push button (actuator), with delayed action “trip-free“ tripping with a polarized signal contact which is open when main contacts are closed, and inversely. They will continue to function up to the short-circuit current. 2 Normative references The following referenced documents are indis
19、pensable for the application 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 3155-016, Aerospace series Electrical contacts used in elements of connection Part 016: Co
20、ntacts, electrical, male, type A, crimp, class S Product standard. EN 3661-001, Aerospace series Circuit breakers, single-pole, temperature compensated, rated current 20 A to 50 A Part 001: Technical specification. EN 3841-305, Aerospace series Circuit breakers Test methods Part 305: Short-circuit p
21、erformance. EN 6113, Aerospace series Circuit breaker, connecting and attachment hardware.1)TR 6083, Aerospace series Cut-outs for installation of electrical components.2)MIL-I-81969/1A, Installing and removal tools, connector electrical contact, type III, class 2, composition C.3)MIL-I-81969/14C, I
22、nstalling and removal tools, connector electrical contact, type III, class 2, composition B.3)MIL-S-19500, Semiconductor device, diode, silicon, fast recovery.3)FED-STD-595B, Colors used in Government Procurement. 3 Dimensions and mass 3.1 Dimensional characteristics The circuit breakers do not have
23、 to correspond to the pictorial illustration, only the dimensions given shall be adhered to. Dimensions are in millimetres. See Figure 1. 1) Published as AECMA Prestandard at the date of publication of this standard. 2) Published as AECMA Technical Report at the date of publication of this standard.
24、 3) Published by: Department of Defense (DOD), the Pentagon, Washington D.C. 20301 USA. EN 3661-005:20065 Key 1 Push button released 9 1 to 3 max. 2 Green colour according to FED-STD-595B No. 34090 10 3 White Gauge 20 connection pins according to EN3155-016M2018 4 Marking area, see Clause 8. 11 Indi
25、cative value 25 (see note) 5 Connecting screw and washer 12 6 Push button pressed Positioning lug in accordance with the panel cut-out, as per TR6083C202 7 Lockwasher 13 Rated current marking (white on green) 8 Attachment nut F1 and F2: see EN 3661-001 “Mechanical tests“. NOTE Tools noted in Subclau
26、se 4.2.4 shall be applied without interfering with the terminal 2 connection, even if the circuit breakers are grouped. Figure 1 Configuration Dimensions Tolerances 110,5 A55320-123M12 x 0,75 10,2 0,33 min.2 0,3A21 0,52519,5 max.12F1 and F2 : see EN 3661-001, table 334 max.42 max.10 min.10 min.10 9,
27、2 0,3926,5 0,3180-123148128max.6,60,654+104533 max.7min.4531325 max.14687F2F1EN 3661-005:20066 3.2 Electrical diagram See Figure 2. Terminal No.: 1 and 2: Main contacts 3 and 5: Signal contacts Figure 2 Electrical diagram 3.3 Mass 75 g max. (delivery code A including hardware). 3.4 Panel mounting Se
28、e EN 3661-001. 4 Characteristics 4.1 Material, surface treatment See EN 3661-001. 4.2 Mechanical characteristics 4.2.1 Fasteners See EN 6113. 4.2.2 Recommended tightening torque of attaching nut for installation (5,25 0,25) Nm. 4.2.3 Recommended tightening torque of connection hardware for installat
29、ion (2,35 0,15) Nm. 4.2.4 Recommended tools for contacts of auxiliary contact insertion and extraction plastic MIL-I-81969/14-11; metallic MIL-I-81969/1-02. 213 5Push-button released2135Push-button pressed3 5or35orEN 3661-005:20067 4.2.5 Resistance to vibrations 4.2.5.1 Combined test: ambient temper
30、ature at 70 C and vibrations Sinusoidal: 10 gn, see EN 3661-001. Random: 5,8 gn, see EN 3661-001. Low frequencies: 10 gn, see EN 3661-001. 4.2.5.2 Combined test: ambient temperature at 85 C, altitude and vibrations Sinusoidal: 3 gn, see EN 3661-001. 4.2.6 Resistance to shocks 50 gn, see EN 3661-001.
31、 4.2.7 Mechanical endurance See Table 6. 4.3 Environment characteristics 4.3.1 Humidity See EN 3661-001. 4.3.2 Corrosion See EN 3661-001. 4.3.3 Contaminating fluids See EN 3661-001. 4.3.4 Over-voltage caused by lightning See EN 3661-001. 4.4 Electrical characteristics 4.4.1 Nominal voltages of main
32、contacts See Table 1. Table 1 28 V d.c. 26 V a.c., 360 Hz to 800 Hz Nominal voltage 115 V a.c., 360 Hz to 800 Hz EN 3661-005:20068 4.4.2 Diode of signal contact characteristic Maximum current at 125 C: 0,5 A. Peak repetitive reversal voltage: 800 V min. Quality standard: JANTX according to MIL-S-195
33、00. 4.4.3 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 Signal circuit: 28 V d.c.; I = 3 mA : U 1,0 V. NOTE When a signal contact has been operated with a power greater than 60 mW and/or with a voltage higher than 28 V d.c., it
34、loses its low current quality. 4.4.4 Minimum and maximum tripping thresholds See Table 3. Table 3 Overload (in % of n) Minimum thresholds value 1 h Maximum thresholds value 1 h Ambient temperatures C Ratings On ground At 15 000 m On ground 23 5 110 105 145 55 5 110 105 165 70 5 105 100 145 125 5 All
35、 90 80 145 4.4.5 Overload trip See Table 4. EN 3661-005:20069 Table 4 Overload (in % of n) 200 500 1 000 Ambient temperatures C Ratings A Trip time s 23 5 4 to 15 55 5 70 125 5 All 1,5 0,15 to 2,50 0,045 to 0,600 4.4.6 Short-circuit values See Table 5. Table 5 Nominal voltage 28 V d.c. 115 V a.c., 3
36、60 Hz to 800 Hz 0,8 cos 1 Prospective currents 4 000 A L/R 1 ms 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 baBreak operation (for definition see EN 3841-305). bMake operation (for definition see EN 3841-305). 4.4.7 No-
37、load and load endurance See Table 6. Table 6 Number of operations to be provided No-load Load 5 000 2 500 2 500 2 500 2 500 Main contacts Applicable Not applicable Resistive n, 28 V d.c. Inductive L/R = 5 ms n, 28 V d.c. Inductive 0,6 cos 0,7n, 115 V a.c. - 360 Hz to 800 HzAll ratings Signal contact
38、s Applicable Resistive 3 mA, 28 V d.c. Resistive 3 mA, 5 V d.c. Lamp 0,2 A, 28 V d.c. Resistive 0,5 A, 28 V d.c. NOTE 1 One operation corresponds to one closing + one opening. NOTE 2 Tolerances 5 % on current, voltage and frequency values. EN 3661-005:200610 4.4.8 Dielectric rigidity See Table 7. Ta
39、ble 7 Closed position Z = 0 m Z = 15 000 m 1 and 2 with attachment 1 and 2 with 3 1 and 2 with 5 1 500 V 400 V 3 with 5 3 and 5 with attachment 500 V 150 V Open position Z = 0 m Z = 15 000 m 1 with 2 1 and 2 with attachment 3 and 5 with 1 3 and 5 with 2 1 500 V 400 V 3 and 5 with attachment 500 V 15
40、0 V 4.4.9 Insulation resistance According to EN 3661-001, Table 5. 5 Designation EXAMPLE Description block CIRCUIT BREAKER Identity block EN3661-005A20AA Number of EN standard Design code, A: green button Rated current code (see Table 8) Delivery code A (see Table 9) NOTE If necessary, the code I900
41、5 shall be placed between the description block and the identity block. EN 3661-005:200611 6 Rated current code See Table 8. Table 8 Rating current n (A) 20 25 30 35 40 45 50 Marking on actuator 20 25 30 35 40 45 50 Rated current code 20A 25A 30A 35A 40A 45A 50A 7 Delivery codes See Table 9. Table 9
42、 Connection and attachment hardware kits EN 6113 Delivery conditions Delivery code Kit part-No. aIncluded parts Pieces per part Fitted Supplied separately Connecting screw 2 Connecting lock washer 2 Attachment nut 1 A EN 6113A Attachment lock washer 1 X Attachment nut 1 B EN 6113B Attachment lock wa
43、sher 1 X aSpare parts could be ordered separately, for information see EN 6113. 8 Marking As defined on the drawing and unless otherwise specified by contract, marking shall include: the designation defined in Clause 5, on the packaging; the manufacture date (year, week) the manufacturers name or tr
44、ademark; the electrical diagram and the terminal identification; the manufacturers part number (corresponding to the part number which includes connection and attachment hardware supplied separately in a bag). NOTE The marking could be on both opposite sides. For electrical diagram printed on the ci
45、rcuit breaker and/or terminal identification numbers see Figure 1. 9 Technical specification See EN 3661-001. EN 3661-005:2006BS EN 3661-005:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It
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