Transformers; rollers; center-line spacings and rail gauges
Edition 1992-09

Transformers and inductors for use in electronic and telecommunication equipment - Part 4: Sectional specification for power transformers for switched mode power supplies (SMPS) on the basis of the capability approval procedure (IEC 61248-4:1996); German version EN 61248-4:1997
Edition 1998-05

Transformers and inductors for use in electronic and telecommunication equipment - Part 2: Sectional specification for signal transformers on the basis of the capability approval procedure (IEC 61248-2:1996); German version EN 61248-2:1997
Edition 1998-05

Laminated core packages for transformers and inductors used in telecommunication and electronic equipment - Part 1: Dimensions (IEC 61021-1:1990); German version EN 61021-1:1997
Edition 1997-11

Transformers and inductors for use in telecommunication and electronic equipment - Main dimensions of coil formers - Part 1: Coil formers for laminated cores (IEC 61797-1:1996); German version EN 61797-1:1996
Edition 1997-05

Transformers and inductors for use in electronic and telecommunication equipment - Part 6: Sectional specification for inductors on the basis of the capability approval procedure (IEC 61248-6:1996); German version EN 61248-6:1997
Edition 1998-05

Laminated core packages for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Electrical characteristics for cores using YEE 2 laminations (IEC 61021-2:1995); German version EN 61021-2:1997
Edition 1997-10

Transformers and inductors for use in electronic and telecommunication equipment - Part 1: Generic specification (IEC 61248-1:1996); German version EN 61248-1:1997
Edition 1998-05

Transformers for tubular discharge lamps having a no-load output voltage exceeding 1000 V (generally called neon-transformers) - General and safety requirements (IEC 61050:1991 + Corrigendum March:1992, modified); German version EN 61050:1994
Edition 1994-12

Guide for the maintenance of silicone transformer liquids; identical with IEC 60944:1988
Edition 1995-01