By the beginning of the 1940s, the company offered a varied and broad spectrum of products.
Due to World War II, the enterprise at Cologne-Klettenberg is destroyed and the parent company is moved to Brüchermühle, but in 1945 production stagnates.
In 1946 Franz Baumgartner reopens, with only 10 employees left, a new factory in Bergisch Gladbach.
FRABA expands and actively participated in the postwar German Wirthschaftswunder with the restart of production, newly established contacts with foreign customers and further expansion of their domestic business.
In 1951 FRABA was the biggest specialized factory in Germany for electrical switching devices.
This was a result of the innovative character of the company, e.g. during World War II, a gas pressure relay with quicksilver was invented instead of using the familiar copper wires, because copper was very hard to come by.
FRABA flourished and relocated to the newly established operating space in Cologne-Niehl in 1953.

Until the 1960s, FRABA's main product was the mechanical relay.
In 1960 FRABA modified their production and started manufacturing the first mobile dialysis system for hospitals.
They continued to produce relays as well, such as specific systems for the German railway and relay combination systems for traffic lights.
An example of the latter was the manufacturing of the relays for the traffic lights of Haifa in 1962.
In February 1962, a large fire damaged the office and the production space of FRABA at Cologne-Niehl.
However, this was not the end of the production: in 1963 FRABA launched their first (brush) absolute rotary encoder - a product which would remain the main business.
 In 1968, the company celebrated 50 years of FRABA and was thriving with 400 employees.
 In the same year, Franz Baumgartner retired at the age of 80.
Two nephews taok over the company.
In 1969, Franz Baumgartner received the Federal Cross of Merit (Bundesverdienstkreuz), in honour of his work for the disabled and severely ill.
Franz Baumgartner proved his high technical skill and knowledge, innovative character and entrepreneurial awareness.
By the beginning of the 1940s, the company offered a varied and broad spectrum of products. Due to World War II, the enterprise at Cologne-Klettenberg is destroyed and the parent company is moved to Brüchermühle, but in 1945 production stagnates. In 1946 Franz Baumgartner reopens, with only 10 employees left, a new factory in Bergisch Gladbach. FRABA expands and actively participated in the postwar German Wirthschaftswunder with the restart of production, newly established contacts with foreign customers and further expansion of their domestic business. In 1951 FRABA was the biggest specialized factory in Germany for electrical switching devices. This was a result of the innovative character of the company, e.g. during World War II, a gas pressure relay with quicksilver was invented instead of using the familiar copper wires, because copper was very hard to come by. FRABA flourished and relocated to the newly established operating space in Cologne-Niehl in 1953. 
Until the 1960s, FRABA's main product was the mechanical relay. In 1960 FRABA modified their production and started manufacturing the first mobile dialysis system for hospitals. They continued to produce relays as well, such as specific systems for the German railway and relay combination systems for traffic lights. An example of the latter was the manufacturing of the relays for the traffic lights of Haifa in 1962. In February 1962, a large fire damaged the office and the production space of FRABA at Cologne-Niehl. However, this was not the end of the production: in 1963 FRABA launched their first (brush) absolute rotary encoder - a product which would remain the main business.  In 1968, the company celebrated 50 years of FRABA and was thriving with 400 employees.  In the same year, Franz Baumgartner retired at the age of 80. Two nephews taok over the company. In 1969, Franz Baumgartner received the Federal Cross of Merit (Bundesverdienstkreuz), in honour of his work for the disabled and severely ill. Franz Baumgartner proved his high technical skill and knowledge, innovative character and entrepreneurial awareness.
FRABA