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Imagine a reliable transformer with a fuse that will not trigger despite frequent switching on and off. To make this scenario a reality, we have developed a transformer switching relay completely cutting out - not just reducing - the switch-on surge in your transformer.

Transformer Switching Relays

Using the soft starting procedure developed and by FSM AG, one or several single-phase transformers can be switched during no-load operation or under load without starting current surge (inrush). Your advantage: transformers can be designed in a more cost-efficient and low-loss manner.

Where transformers have to be switched more frequently and where the waiting time between the switching procedures resulting from the use of starting current limiters cannot be tolerated, transformer relays are used. Furthermore, transformer relays are used in case of socalled half-wave failures of the mains voltage. If the same must not result in the fuses triggering, a transformer switching relay from FSM is the correct solution.

Applications

Transformer switching relais from FSM AG are used in industrial sector, medical engineering, traffic and railway engineering, special-purpose vehicles, switchgears, electric heaters (chairlift), lighting technology,  broadcast technology and research. Additionally they can be used for any type of transformer. Transformer switching relays ensure your devices comply with the latest EMV regulations and standards for medical devices. We work together with multiple manufacturers of transformers to provide the best solutions possible.

Here you find some examples of applications:

Lighting technology

Medical devices,
e.g. dialysis machines

Special vehicles,
e.g. for broadcasting 

Traffic lights

Products

Using the soft starting procedure developed and by FSM AG, one or several single-phase transformers can be switched during no-load operation or under load without starting current surge (inrush). Our product range includes: 

  • Easy to install
  • Guaranteed switching
  • Medical devices

TSRL

  • Guaranteed switching
  • Robust
  • High power

TSRD

  • Affordable
  • Fast Switching
  • Low maintanance

TSRLF

  • Fast switching 
  • high power
  • low maintanance

TSRDF

  • Compact design 
  • Affordable
  • Medical device

TSR01

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FSM AG | We introduce ourselves

FSM AG develops an produces intelligent electronics. We support our customers with electronic products in the disciplines mobile energy supply, measuring systems and transformer switching relays as well as in the area of electronic manu­facturing services (EMS). Our products are mostly customized solutions and become part of a final product. Therefore one encounters the technology of FSM quite often without knowing that major components of the final product originate from us.

For further information please refer to our brochure

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