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Why do you need a transformer starter switch in medical technology?

Our transformer switches are used in medical technology. From operating theater trolleys to laser or X-ray equipment to hospital power supplies.
Wherever the transformer generates a high inrush current and the fuse cannot withstand this high current flow, our inrush current limiter is used.


A larger fuse is often used to overprotect the device. If there is then a fault in the appliance, the fuse does not trip as intended. The TSR prevents this inrush current and thus guarantees the functionality of the appliance. In addition, the transformer starter protector monitors the mains for half-wave failures and voltage dips.


Transformer starter switches ensure that a device continues to function without interruption even after a half-wave failure. This is crucial for the reliability of medical devices and is required by the EN61000-4-11 standard. Many customer devices in which our transformer switches are installed are certified to this standard (EN61000-4-11). 

Suitable products in medical technology

For 1-phase transformers up to 32 A rated current

To the product TSRL

For 1-phase transformers with external actuator

To the product TSRLF

Without housing, compact design

To the product TSR01

Das Bild zeigt zwei Mitarbeiter der FSM AG während eines Meetings in einem Besprechungsraum. Einer der Mitarbeiter sitzt lächelnd am Tisch und beteiligt sich aktiv an der Diskussion, während der andere aufmerksam zuhört.     Du:

High inrush and special requirements?

 To the customer solutions

For 3-phase transformers up to 50 A rated current

To the product TSRD

Ihre Ansprechpartner

Jürgen Schlegel

Jürgen Schlegel
Vertrieb
Phone +49 7661 9855 360

juergen.schlegel@fsm.ag

Manuel Beha

Manuel Beha
Technischer Ansprechpartner
Phone +49 7661 9855 377

manuel.beha@fsm.ag

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