British Standards Institution - Committee

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EPL/51 - Transformers, inductors, magnetic components and ferrite materials

Sector: Manufacturing

Categories: Electric furnaces | Electrical equipment. Special conditions. Other | Electromechanical components. Other | Wires | Connecting devices | Electricity. Magnetism. Other | Components. Magnetic | Capacitors. General | Electroacoustics | Networking | Measurement. Acoustics | Television and radio broadcasting | Measurement. Electrical and magnetic | Relays | Fibre optic systems. General | Sacks. Bags | Lamps. Caps and holders | Medical equipment. Diagnostic | Electricity. Magnetism. General | Physics. Chemistry | Magnetic materials | Transformers. Reactors | Fibres and cables | Audio, video and audiovisual equipment. Other | Electric tools | Insulating materials | Power transmission and distribution lines | Components. Electrical equipment | Audio, video and audiovisual systems. General | Electric shock protection. Live working | Nickel and chromium products | Video systems | Steels. Magnetic properties | Electronic components. General | Telecommunications. General | Components. Electrical equipment. Other | Lamps. Fluorescent and discharge | Components and accessories. General | | Industrial process measurement and control | Components. Electrical equipment. General | Electrical engineering | Automatic controls for household use | Immunity | Electrical engineering. General

Overview: Under the direction of the Standards Policy and Strategy Committee, is responsible for the UK input to the work of IEC/TC51 and CLC/SR 51

Committee standards activity

In Progress (36)

Show entries

Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
PNW 51-1512 ED1:	Magnetic powder cores Guidelines on dimensions and limits of surface irregularities - Part 9: Ellipse-cores Categories: Information management \| Standardization. General rules Proposal begins : 2024-07-15	Proposal
PNW 51-1427 ED1:	High frequency inductive components - Electrical characteristics and measuring methods - Part 3: AC loss measured by sinusoidal wave of inductors for DC-to-DC converters Categories: Information management \| Standardization. General rules \| Engineering \| Electrical engineering \| Components. Electrical equipment \| Components. Magnetic Proposal begins : 2022-12-13	Proposal
PD IEC/TR 63307 Ed.2.0	Measurement methods of the complex relative permeability and permittivity of noise suppression sheet Categories: Unclassified documents Drafting begins : 2025-07-11	Drafting
PD IEC/TR 63307 Ed.2.0	Measurement methods of the complex relative permeability and permittivity of noise suppression sheet Categories: Unclassified documents Drafting begins : 2025-07-11	Drafting
IEC 51/1431/NP	Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 15: U-cores Categories: Information management \| Standardization. General rules \| Engineering \| Electrical engineering \| Magnetic materials \| Components. Electrical equipment Proposal begins : 2023-01-18	Proposal
BS IEC IEC 62025-1 ED3	High frequency inductive components - Non-electrical characteristics and measuring methods. - Part 1: Fixed, surface mounted inductors for use in electronic and telecommunication equipment Categories: Components. Magnetic Public comment begins : 2024-05-15	Public comment
BS IEC 63361 Ed.1.0	Transformers and inductors - Near Magnetic and Electric Fields Characterization Categories: Components. Magnetic \| Transformers. Reactors Public comment begins : 2024-10-21	Public comment
BS IEC 63093-5 Ed2	BS EN 63093-5 Ed2 Ferrite cores - Guidelines on dimensions and the limits of surface irregularities. Part 5: EP-cores and associated parts for use in inductors and transformers Categories: Components. Magnetic Comment resolution begins : 2025-11-20	Comment resolution
BS IEC 63093-4 Ed2	BS EN 63093-4 Ed2 Ferrite cores - Guidelines on dimensions and the limits of surface irregularities. Part 4: RM-cores Categories: Components. Magnetic Comment resolution begins : 2025-12-10	Comment resolution
BS EN IEC/IEEE 61007-389 Ed.1.0	BS EN 61007-389 Ed.1.0 Transformers and inductors for use in electronic and telecommunication equipment - Measuring methods and test procedures Categories: Components. Magnetic \| Transformers. Reactors Comment resolution begins : 2025-11-03	Comment resolution

Show entries

Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
PD IEC/TR 63090:2017	Dimensional tolerances of ferrite cores Categories: Components. Magnetic Published standard begins : 2017-08-11	Published standard
PD IEC TR 63307:2020	Measurement methods of the complex relative permeability and permittivity of noise suppression sheet Categories: Components. Magnetic Published standard begins : 2020-12-07	Published standard
BS IEC 63182-6:2025	Magnetic powder cores. Guidelines on dimensions and the limits of surface irregularities. EQ-cores Categories: Components. Magnetic Published standard begins : 2025-09-03	Published standard
BS EN IEC 63300:2023	Test methods for electrical and magnetic properties of magnetic powder cores Categories: Measurement. Electrical and magnetic \| Magnetic materials \| Components. Magnetic Published standard begins : 2023-08-30	Published standard
BS EN IEC 63299:2022	Classification of magnetic powder cores Categories: Magnetic materials \| Components. Magnetic Published standard begins : 2022-10-31	Published standard
BS EN IEC 63182-5:2022	Magnetic powder cores. Guidelines on dimensions and the limits of surface irregularities. Cylinder-cores Categories: Components. Magnetic Published standard begins : 2022-06-23	Published standard
BS EN IEC 63182-4:2022	Magnetic powder cores. Guidelines on dimensions and the limits of surface irregularities. Block-cores Categories: Components. Magnetic Published standard begins : 2022-06-23	Published standard
BS EN IEC 63182-3:2022	Magnetic powder cores. Guidelines on dimensions and the limits of surface irregularities. E-cores Categories: Components. Magnetic \| Steels. Magnetic properties Published standard begins : 2022-03-03	Published standard
BS EN IEC 63182-2:2020	Magnetic powder cores. Guidelines on dimensions and the limits of surface irregularities. Ring-cores Categories: Components. Magnetic Published standard begins : 2020-11-18	Published standard
BS EN IEC 63182-1:2020	Magnetic powder cores. Guidelines on dimensions and the limits of surface irregularities. General specification Categories: Components. Magnetic Published standard begins : 2020-07-29	Published standard

Show entries

Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
BS EN IEC 63093-7:2018	Ferrite cores. Guidelines on dimensions and the limits of surface irregularities. EER-cores Categories: Components. Magnetic Withdrawn begins : 2019-05-24	Withdrawn
BS EN IEC 63093-13:2019	Ferrite cores. Guidelines on dimensions and the limits of surface irregularities. PQ-cores Categories: Components. Magnetic Withdrawn begins : 2024-06-13	Withdrawn
BS EN IEC 61007:2020	Transformers and inductors for use in electronic and telecommunication equipment. Measuring methods and test procedures Categories: Components. Magnetic \| Transformers. Reactors Withdrawn begins : 2021-07-12	Withdrawn
BS EN 62333-2:2006	Noise suppression sheet for digital devices and equipment. Measuring methods Categories: Components. Magnetic Withdrawn begins : 2016-02-08	Withdrawn
BS EN 62323:2005	Dimensions of half pot-cores made of ferrite for inductive proximity switches Categories: Components. Magnetic Withdrawn begins : 2020-05-26	Withdrawn
BS EN 62317-9:2006	Ferrite cores. Dimensions. Planar cores Categories: Components. Magnetic Withdrawn begins : 2020-06-17	Withdrawn
BS EN 62317-9:2006	Ferrite cores. Dimensions. Planar cores Categories: Components. Magnetic Withdrawn begins : 2007-05-29	Withdrawn
BS EN 62317-8:2006	Ferrite cores. Dimensions. E-cores Categories: Components. Magnetic Withdrawn begins : 2019-09-03	Withdrawn
BS EN 62317-7:2005	Ferrite cores. Dimensions. EER-cores Categories: Components. Magnetic Withdrawn begins : 2006-01-23	Withdrawn
BS EN 62317-6:2016	Ferrite cores. Dimensions. ETD-cores for use in power supplies Categories: Components. Magnetic Withdrawn begins : 2019-09-03	Withdrawn