1、BRITISH STANDARD BS EN 50347:2001 Incorporating Amendment No. 1 General purpose three-phase induction motors having standard dimensions and outputs Frame numbers 56 to 315 and flange numbers 65 to 740 The European Standard EN 50347:2001 has the status of a British Standard ICS 29.160.30 BS EN 50347:
2、2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 September 2001 BSI 22 April 2004 ISBN 0 580 38261 3 National foreword This British Standard is the o
3、fficial English language version of EN 50347:2001. It supersedes BS 5000-10:1978 which is withdrawn. Together with BS 4999-103:2004, it supersedes BS 4999-103:1987 which is withdrawn. Together with BS 4999-141:2004, it supersedes BS 4999-141:1987 which is withdrawn. The UK participation in its prepa
4、ration was entrusted to Technical Committee PEL/2, Rotating electrical machinery, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publi
5、cations referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the nec
6、essary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, o
7、r proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover. The BSI copyright notic
8、e displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 15055 22 April 2004 National foreword. Correction to supersession information.EUROPEAN STANDARD EN 50347 NORME EUROPENNE EUROPISCHE NORM July 2001 CENELEC European Com
9、mittee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELE
10、C members. Ref. No. EN 50347:2001 E ICS 29.160.30 Supersedes HD 231 S1:1974 English version General purpose three-phase induction motors having standard dimensions and outputs - Frame numbers 56 to 315 and flange numbers 65 to 740 Moteurs induction triphass usage gnral de dimensions et puissances no
11、rmales - Dsignation des carcasses entre 56 et 315 et des brides entre 65 et 740 Drehstromasynchronmotoren fr den Allgemeingebrauch mit standardisierten Abmessungen und Leistungen - Baugren 56 bis 315 und Flanschgren 65 bis 740 This European Standard was approved by CENELEC on 2001-03-01. CENELEC mem
12、bers 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 applicat
13、ion to the Central Secretariat or to any CENELEC 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 CENELEC member into its own language and notified to the Central Secretariat
14、has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom
15、.EN 50347:2001 - 2 - Contents Page 1 Scope4 2 Normative references4 3 Letter symbols and dimensional sketches4 3.1 Letter-symbols for dimensions .4 3.2 Dimensional sketches.6 4 Letters for frame sizes and flange numbers .7 5 Location of the terminal box.7 5.1 Machines with feet7 5.2 Machines with fl
16、ange only .7 6 Position of holes in the mounting flange (when machine also has feet).7 7 Fixing dimensions and tolerances.8 7.1 Foot-mounted machines8 7.2 Flange-mounted machines 9 7.3 Shaft end dimensions .10 7.4 Parallelity of shaft to foot-face .11 7.5 Parallelism of keyway to shaft axis.11 7.6 L
17、ateral displacement of keyway .11 8 Methods of measurement 11 8.1 Shaft extension run-out.11 8.2 Concentricity of spigot and shaft12 8.3 Perpendicularity of mounting face of flange to shaft .12 8.4 Parallelity of shaft to foot-face .13 8.5 Parallelism of keyway to shaft axis.13 8.6 Lateral displacem
18、ent of keyway .14 9 Relationships frame sizes - shaft extensions - rated outputs - flange numbers 14- 3 - EN 50347:2001 Foreword This European Standard was prepared by the Technical Committee CENELEC TC 2, Rotating machinery. The text of the draft was submitted to the Unique Acceptance Procedure and
19、 was approved by CENELEC as EN 50347 on 2001-03-01. This European Standard supersedes HD 231 S1:1974. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2002-03-01 latest date by
20、 which the national standards conflicting with the EN have to be withdrawn (dow) 2004-03-01 _EN 50347:2001 - 4 - 1 Scope This EN 50347 covers general purpose standard dimensioned three-phase induction motors for 50 Hz with rated voltages not exceeding 690 V for industrial purposes having dimensions
21、selected from IEC 60072-1 in the range : Frame numbers - shaft-heights : 56 mm to 315 mm Flange numbers - pitch circle diameter of flange : 65 mm to 740 mm It gives tables of fixing dimensions, shaft extension dimensions and output powers. 2 Normative references This European Standard incorporates b
22、y dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Stan
23、dard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 20273, Fasteners - Clearance holes for bolts and screws EN 20286, ISO system of limits and fits IEC 60034-7, Rotating electrical mac
24、hines Part 7: Classification of types of constructions and mounting arrangements and terminal box position (IM Code) (harmonized as EN 60034-7) IEC 60072-1, Dimensions and output series for rotating electrical machines - Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080 3 Letter symbols
25、and dimensional sketches The following symbols identify the dimensional features of a motor. Mandatory dimensions are marked with an asterisk. 3.1 Letter-symbols for dimensions *A - distance between centre-lines of fixing holes (end view) AA - width of the end of the foot (end view) AB - over-all di
26、mension across the feet (end view) AC - diameter of the machine AD - distance from the centre-line of the machine to extreme outside of the terminal box or other most salient part mounted on the side of the machine *B - distance between the centre-lines of the fixing holes (side view) BA - length of
27、 the foot (side view) BB - over-all dimension across the feet (side view) *C - distance from the shoulder on the shaft at D-end to the centre-line of the mounting holes in the nearest feet CA - distance from the shoulder on the shaft at N-end to the centre-line of the mounting holes in the nearest f
28、eet *CB - rounding fillet at the shoulder on the shaft at D-end CC - rounding fillet at the shoulder on the shaft at N-end- 5 - EN 50347:2001 *D - diameter of the shaft extension at D-end DA - diameter of the shaft extension at N-end DB - thread-size in the centre hole at D-end DC - thread-size in t
29、he centre hole at N-end *E - length of the shaft extension from the shoulder at D-end EA - length of the shaft extension from the shoulder at N-end *EB - length of the key at D-end EC - length of the key at N-end *ED - distance from the shoulder on the shaft at D-end to the nearest end of the keyway
30、 EE - distance from the shoulder on the shaft at N-end to the nearest end of the keyway *F - width of the keyway or key of the shaft extension at D-end FA - width of the keyway or key of the shaft extension at N-end *FB - rounding fillet in the bottom of the keyway at D-end FC - rounding fillet in t
31、he bottom of the keyway at N-end G - distance from the bottom of the keyway to the opposite surface of the shaft extension at D-end *GA - distance from the top of the key to the opposite surface of the shaft extension at D- end GB - distance from the bottom of the keyway to the opposite surface of t
32、he shaft extension at N-end GC - distance from the top of the key to the opposite surface of the shaft extension at N- end *GD - thickness of the key of the shaft extension at D-end *GE - depth of the keyway at the crown of the shaft extension at D-end GF - thickness of the key of the shaft extensio
33、n at N-end GH - depth of the keyway at the crown of the shaft extension at N-end *H - distance form the centre-line of the shaft to the bottom of the feet (basic dimension) H - distance from the centre-line of the shaft to the mounting surface - e.g. the bottom of the feet in the feet-up version HA
34、- thickness of the feet HC - distance from the top of the horizontal machine to the bottom of the feet HD - distance from the top of the lifting eye, the terminal box or other most salient part mounted on the top of the machine to the bottom of the feet HE - distance from the mounting surface to the
35、 lowest part of the machine in the feet-up version *K - diameter of the holes or width of the slots in the feet of the machine L - overall length of the machine with a single shaft extension LA - thickness of the flange LB - distance from the mounting surface of the flange to the end of the machine
36、LC - overall length of the machine when there is a shaft extension at N-end *M - pitch circle diameter of the fixing holes *N - diameter of the spigot *P - outside diameter of the flange, or in the case of a non-circular outline twice the maximum radial dimension *R - distance from the mounting surf
37、ace of the flange to the shoulder on the shaft *S - diameter of the fixing holes in the mounting flange or nominal diameter of thread *T - depth of the spigot NOTE 1 The above symbols include all letter symbols listed in IEC 60072-1 supplemented with additional letters necessary for this EN. NOTE 2
38、The definition of D-end and N-end of a motor is given in IEC 60034-7.EN 50347:2001 - 6 - 3.2 Dimensional sketchesDend Nend1) FF - access to back FT - no access to back 2) This ISO symbol indicates the projection method used LC- 7 - EN 50347:2001 4 Letters for frame sizes and flange numbers Letters f
39、or frame sizes S - short length frame size M - middle length frame size L - long length frame size Letters for flange numbers FF - flange with free holes FT - flange with tapped holes 5 Location of the terminal box 5.1 Machines with feet The terminal box on a motor shall be situated with its centre-
40、line within a sector ranging from the top to 10 below the horizontal centre-line of the motor on the right-hand side, when looking at the D-end of the motor. It is recommended that unless the terminal box is on the top, motors be so constructed that the terminal box may be located on the left-hand s
41、ide viewed from the D-end by the manufacturer if requested by the user at the time when the motor is ordered. NOTE Provision should preferably be made so as to enable the cable entry to the terminal box to be in any one of four directions at right angles. 5.2 Machines with flange only No recommendat
42、ion. 6 Position of holes in the mounting flange (when machine also has feet) When a foot-mounted machine is also provided with a flange, the holes in the flange shall be placed in the angular position shown in the sketches of 3.2.EN 50347:2001 - 8 - 7 Fixing dimensions and tolerances 7.1 Foot-mounte
43、d machines Table 1 - Dimensions for machines with shaft-heights from 56 mm to 315 mm H Frame number Nominal mm Maximum deviation mm A mm B mm C mm K 1) Nominal mm Bolt or screw 56M 63M 71M 80M 90S 90L 100L 112M 132S 132M 160M 160L 180M 180L 200M 200L 225S 225M 250S 250M 280S 280M 315S 315M 56 63 71
44、80 90 90 100 112 132 132 160 160 180 180 200 200 225 225 250 250 280 280 315 315 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 0,5 - 1 - 1 - 1 - 1 90 100 112 125 140 140 160 190 216 216 254 254 279 279 318 318 356 356 406 406 457
45、457 508 508 71 80 90 100 100 125 140 140 140 178 210 254 241 279 267 305 286 311 311 349 368 419 406 457 36 40 45 50 56 56 63 70 89 89 108 108 121 121 133 133 149 149 168 168 190 190 216 216 5,8 7 7 10 10 10 12 12 12 12 14,5 14,5 14,5 14,5 18,5 18,5 18,5 18,5 24 24 24 24 28 28 M5 M6 M6 M8 M8 M8 M10
46、M10 M10 M10 M12 M12 M12 M12 M16 M16 M16 M16 M20 M20 M20 M20 M24 M24 1) The nominal K dimensions are selected from the coarse series in EN 20273 and have a tolerance of H17 to EN 20286. For closed slots the tolerance applies to the width of the slot. Open ended slots are not permitted.- 9 - EN 50347:
47、2001 7.2 Flange-mounted machines Flange number allocations to frame size are given in clause 9, Tables 6 to 9. Machines having both feet and flange shall have A, B and C dimensions selected from Table 1. Table 2 - Dimensions and tolerances for flanges with pitch circle diameters from 65 mm to 740 mm
48、 NS Nominal ISO tolerance Flange number FF or FT M mm mm m m P 1) max. mm R mm Num- ber of holes Free holes (FF) 2) Nominal mm Tapped holes (FT) 3) Thread T 4) Maximum mm Concentricity 5) and perpendi- cularity m 65 75 85 100 115 130 165 215 265 300 350 400 500 600 740 65 75 85 100 115 130 165 215 2
49、65 300 350 400 500 600 740 50 60 70 80 95 110 130 180 230 250 300 350 450 550 680 j6 j6 j6 j6 j6 j6 j6 j6 j6 j6 h6 h6 h6 h6 h6 +11 +12 +12 +12 +13 +13 +14 +14 +16 +16 0 0 0 0 0 -5 -7 -7 -7 -9 -9 -11 -11 -13 -13 -32 -36 -40 -44 -50 80 90 105 120 140 160 200 250 300 350 400 450 550 660 800 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 4 4 4 4 4 4 4 4 4 4 8 8 8 8 5,8 5,8 7 7 10 10 12 14,5 14,5 18,5 18,5 18,5 18,5 24 24 M5 M5 M6 M6 M8 M8 M10 M12 M12 M16 M16 M16 M16 M20 M20 2,5 2,5 2,5 3
