• BS EN 50347:2001

    Current The latest, up-to-date edition.

    General purpose three-phase induction motors having standard dimensions and outputs. Frame numbers 56 to 315 and flange numbers 65 to 740

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-09-2001

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 Normative references
    3 Letter symbols and dimensional sketches
      3.1 Letter-symbols for dimensions
      3.2 Dimensional sketches
    4 Letters for frame sizes and flange numbers
    5 Location of the terminal box
      5.1 Machines with feet
      5.2 Machines with flange only
    6 Position of holes in the mounting flange (when
      machine also has feet)
    7 Fixing dimensions and tolerances
      7.1 Foot-mounted machines
      7.2 Flange-mounted machines
      7.3 Shaft end dimensions
      7.4 Parallelity of shaft to foot-face
      7.5 Parallelism of keyway to shaft axis
      7.6 Lateral displacement of keyway
    8 Methods of measurement
      8.1 Shaft extension run-out
      8.2 Concentricity of spigot and shaft
      8.3 Perpendicularity of mounting face of flange to shaft
      8.4 Parallelity of shaft to foot-face
      8.5 Parrallelism of keyway to shaft axis
      8.6 Lateral displacement of keyway
    9 Relationships frame sizes - shaft extensions - rated
      outputs - flange numbers

    Abstract - (Show below) - (Hide below)

    Covers general purpose standard dimensioned three-phase induction motors for 50 Hz with rated voltages not exceeding 690 V for industrial purposes.

    General Product Information - (Show below) - (Hide below)

    Committee PEL/2
    Development Note Supersedes BS 5000-10(1978) and 01/202920 DC (09/2001) Together with BS 4999-103(2004) supersedes BS 4999-103(1987) Together with BS 4999-141(2004) supersedes BS 4999-141(1987) (04/2004)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 4999-103(2004) : 2004 GENERAL REQUIREMENTS FOR ROTATING ELECTRICAL MACHINES - PART 103: SPECIFICATION FOR SYMBOLS
    BS 5000-11(1973) : 1973 SPECIFICATION FOR ROTATING ELECTRICAL MACHINES OF PARTICULAR TYPES OR FOR PARTICULAR APPLICATIONS - PART 11: SMALL-POWER ELECTRIC MOTORS AND GENERATORS
    BS 4999-141(2004) : 2004 GENERAL REQUIREMENTS FOR ROTATING ELECTRICAL MACHINES - PART 141: SPECIFICATION FOR STANDARD DIMENSIONS
    BS 4999-141(2004) : 2004 GENERAL REQUIREMENTS FOR ROTATING ELECTRICAL MACHINES - PART 141: SPECIFICATION FOR STANDARD DIMENSIONS

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 20273 : 1991 FASTENERS - CLEARANCE HOLES FOR BOLTS AND SCREWS (ISO 273:1979)
    IEC 60072-1:1991 Dimensions and output series for rotating electrical machines - Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080
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