NBN EN 61247 : 1998

1 Scope and object
2 Normative references
3 Conversion system
4 Primary standards
    4.1 Dimensions of PM-cores
    4.2 Dimensions of coil formers
    4.3 Pin locations and base outlines
    4.4 Pin diameter
5 Mounting hardware
Annexes
A Derived standards
B Example of a gauge to check the coil former space
    dimensions of PM-cores meeting the IEC primary standard
C Recommended main dimensions for mounting hardware
ZA (normative) Normative references to international
    publications with their corresponding European
    publications

Defines dimensions important for mechanical interchangeability, for a preferred range of PM-cores made from magnetic oxides, where the main dimensions for coil formers are to be used with the these cores and the locations of their pins on a modular printed wiring grid relative to the base outlines of cores.