We now only stock earth-wire screw terminals. thuba AG will continue to manufacture a range of command and signalling devices.


For 38 years, we focussed exclusively on developing and manufacturing explosion-proof control and signalling devices at our base in Möckmühl.

We have not managed to sell the company or find a successor. Finally, aged 73, we stopped manufacturing our command and signalling devices.

Our warehouse was well stocked but supplies soon sold out, so I’m delighted to be able to share some good news with you:

thuba AG has taken over production of many of our devices and has also updated the relevant certifications. We have worked closely with thuba AG for over 30 years so we can be confident that the equipment will still be manufactured to the same high quality standard.

TPK Kapfer GmbH still exists, but we will concentrate on manufacturing and supplying earth-wire screw terminals and parts for our tools. We look forward to continue supplying you with these in future.

Thank you for your cooperation, and we wish you all the very best!

Peter ThurnherrKarl Kapfer

thuba AG
Postfach 4460
CH-4002 Basel

Production: Stockbrunnenrain 9, CH-4123 Allschwil

Contact: customer.center@thuba.com

Telefon +41 61 307 80 00