1877 - ZETTLER founded in Munich, Germany by famous German engineer Alois Zettler

1889 - Alois Zettler completed his first design of an electro-mechanical relay in his Munich based laboratory

1998 -  Zettler Electronics (Xiamen) established in Xiamen China

2004 - Zettler Magnetics (Xiamen) established in Xiamen，China

2014 - Zettler Relay (Xiamen) established in Xiamen，China

2015 - Zettler Controls (Ningbo) established in Ningbo，China