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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)

Safety voltage transformers – Ring-core  

interSAFETY ring-core transformers are mostly customer-specific special products. We manufacture models units and small batches at our factory in Turku and larger batches at the facilities of our long-term, reliable partners to ensure competitive delivery.

The maximum voltage for transformers is 440 V. The products are manufactured according to standard IEC / EN 61558-1. Our range also includes UL certified models.
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Selection table
Product namePowerHeightDiameterWeight
interSAFETY toroidal1536570.35
interSAFETY toroidal3038680.5
interSAFETY toroidal5039780.7
interSAFETY toroidal8040910.9
interSAFETY toroidal10045921.1
interSAFETY toroidal12052931.3
interSAFETY toroidal160521021.8
interSAFETY toroidal200521122.1
interSAFETY toroidal250591142.5
interSAFETY toroidal300651142.75
interSAFETY toroidal400621363.6
interSAFETY toroidal500721384.4
interSAFETY toroidal630731545.5
interSAFETY toroidal800771666.5
interSAFETY toroidal990971618.5
Intertrafo Oy | Unkarinkatu 16, 20750 Turku | Tel. +3582 2442 111 | Fax (02) 2442 350