
Manufactures presence and motion detectors, time switches, room thermostats and KNX building automation in Haigerloch.
Theben AG
Haigerloch · EffretikonNew on Amplifa
About Theben
The Theben AG is a family-owned manufacturer of energy-saving and building automation products, founded in 1921. The product range covers presence and motion detectors, digital and analogue time switches, stairwell time switches, impulse switches, dimmers, room and clock thermostats, sensors for climate control as well as a broad spectrum of KNX actuators, push-button sensors, weather stations and DALI-2 light control. With few exceptions, the entire product range is manufactured at the headquarters in Haigerloch; toolmaking and plastics technology is handled by the subsidiary PEZET in Haigerloch. Through its OEM division tts, Theben develops and produces customised software, electrical engineering and mechanical solutions for industrial customers such as ABB, Bosch, Hager, Siemens and Viessmann. Every product undergoes 100% final inspection; developments are tested from concept to production maturity in the in-house, VDE-authorised testing laboratory. The Theben Group is represented by sales companies in over 60 countries; for Switzerland, Theben HTS AG is based in Effretikon.
- Site
- Haigerloch
- Processes
- OEM solutions (development and production of customised software, electrical engineering,, Third-party labelling, Testing in the in-house, VDE-authorised testing laboratory, Production with 100% final inspection, Quality assurance according to ISO 9001:2015, Specialist seminars and online training, Technical support hotline, Design and software programming
- Certificates
- ISO 9001:2015, ISO 14001:2015, VDE TDAP (Test Data Acceptance Program, Level 3), VDE TDAP Level 3
- Founded
- 1921
- Employees
- 800
- Industries
- Building automation / KNX, Electrical installation, Heating and ventilation technology, Energy supply, OEM drive systems and control technology, Education
- 01
Design
- 02
Software programming
- 03
Production
- 04
Testing in the VDE testing laboratory
- 05
100% final inspection
Sites

Haigerloch
DEHeadquarters and production

Effretikon
CHSales and service site of Theben HTS AG
Components and Products








Inside the production



Industries
Additional services
Reference customers
Quality and Certification
Every product undergoes 100% final inspection in production. Developments are tested from prototype to production maturity in the in-house, VDE-authorised testing laboratory.
| Evidence | Haigerloch |
|---|---|
| ISO 9001:2015 | |
| ISO 14001:2015 | |
| VDE TDAP Level 3 |
History
- 1921
Founded as Paul Schwenk – Apparatebau in Stuttgart; the Schwenk time switch is regarded as the birth of building automation
- 1930
Development of the first stairwell lighting automatic timer (ELPA)
- 1941
Relocation from Stuttgart to Haigerloch
- 1971
Foundation of the first foreign sales company in France (Theben S.a.r.l.)
- 1973
Foundation of PEZET GmbH toolmaking and plastics technology in Haigerloch
- 1992
Invention of the presence detector
- 1995
Member of the KNX Association
- 1999
Occupancy of the new production building in the Madertal industrial park in Haigerloch
- 2001
OEM solutions under “tts – theben technische systeme”
- 2007
Acquisition of High Technology Systems AG (HTS), Switzerland – merger to form Theben HTS AG based in Effretikon
- 2021
100th company anniversary