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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)

Medical transformer isolation level monitoring devices  

The interMED product range includes extremely reliable and high quality transformer isolation level monitoring devices, which have been designed by the Finnish PPO-Elektroniikka Oy and manufactured in Finland. The high quality and reliability of the products is exemplified by the manufacturer's own motto: "Our mission is to improve security and to minimize risks".

Products in the isolation level and isolation transformer monitoring system include isolation level monitoring relay MEV-7, remote control device EV-7, transformer monitoring device M-7 and line terminal LC-7                                                                                                                                                                    

Contact Sales

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