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interMARINE 1-phase transformers are DNV GL type approved

interMARINE 1-phase transformers from range 50VA to 2400VA are now DNV GL type approved Read more »


StandexMeder Planar transformers and inductors now available!

Energy-efficiency and better performance for devices used in many commercial and industrial applications. Read more »


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+358 2 244 2111 (tel)


interFILTER chokes are used to level out voltage and power surges, to filter different kinds of faults as well as to compensate power. In short, they are used to improve the quality of the electrical network and electricity.

 Intertrafo Oy specialises in designing and manufacturing customised chokes for demanding applications. Customer-specific design and manufacturing of EMC, RFI PFC, primary and intermediate circuit chokes can be made with a wide selection of core materials from traditional transformer plate cores to ferrite, iron dust and amorphous core materials.

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Intertrafo Oy | Unkarinkatu 16, 20750 Turku | Tel. +3582 2442 111 | Fax (02) 2442 350