HANNOVER MESSE 2018, 23 - 27 April


Logo Muuntosähkö
Exhibition stand
Hall 13, Stand F51

Company Data

Muuntosähkö OY - Trafox

Niittylänpolku 4
00620 Helsinki
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Fax: +358 20 7933 746


Type of company

Year founded

Company profile

Your innovation is our inspiration

Trafox-products are mainly custom designed for a reason. We see every challenge as an opportunity to create added value to our customer. A chance to find the the best possible solution with our experience, skills and the famous finnish perseverance.

We produce 1 - and 3 - phase Low Voltage Transformers and Reactors. Power range for Transformers (like isolation, marine, auto and medical): 1VA - 1600kVA. Current range for Reactors (like AC-drives, Sine Filters, DU/dt Filters, Line Reactors and Detuned Reactors): 1-3000A.

We produce also Superintend® Residual Current Monitoring Systems (RCM) and Isolation Monitoring Devices (IMD) which are designed to cater for the needs of industrial, renewable energy, marine, medical, construction and heavy industrial applications.

Trafox is a Muuntosähkö Oy brand. The company was established in 1947. Production facilities are located in Europe and China.

Company website


Insulation Monitoring System ( IMD )

Trafox Superintend® product family member IM-01 is for monitoring the insulation resistance and system capacity of unearthed circuits. (IT-systems). Measurement max AC voltage is 690V, DC voltage is max 800V. For industry and medical applications. Additional devices to IM-01 is PE conductor continuity more

Medical isolation transformers

Power 320- 7500VA: for permanent installation or for portable use. Medical isolation transformers are designed with reinforced isolation with very low leakage current between input and output circuits. When measured in no load condition and the transformer supplied rated voltage and rated frequency, more

Power Transformers

Single- and three-phase low voltage transformersread more

Reactor / Filter

Blocking/Detuned/Harmonic filter Reactors / Water cooled Reactorsread more

Residual Current Monitoring System ( RCM )

Trafox Superintend® RCM From single channel monitoring unit to centralized monitoring systems from 8 to 256 monitoring points. Devices offer continuous monitoring of earth leakage current and has proven to be an effective method of maintaining preventive maintenance. The result of monitoring of the more

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