- Michel le Goullec acquires Manufacture d’Appareillage Electrique in Nanterre, France. In 1928 the company becomes Télémécanique Electrique.
- The company initiates a pioneering social policy that offers many employee benefits, long before they were mandated by law.
- Telemecanique enters an agreement with Merlin Gerin to rationalize production.
- The company opens subsidiaries in Italy, the Netherlands, Sweden, Portugal, the UK, Norway, Switzerland, Canada, Spain, Denmark and the US.
- Telemecanique opens subsidiaries in Africa, South America and Asia. It develops popular mini computers for industrial control.
- The company develops new, important technology, most notably the Altivar frequency inverters and TSX programmable logic controlers.
- Schneider Electric acquires Telemecanique. The brand continues its development and technological innovation.
- Telemecaniques's QuickFit technology is developed enabling connections without tools or cables.
- Telemecanique products, services, and solutions migrate to the Schneider Electric brand as its Automation and Control offer.