E-T-A Elektrotechnische Apparate GmbH, headquartered in Altdorf near Nuremberg, has been providing solutions for a wide variety of demanding electrical challenges for seven decades. We are the world's leading manufacturer of circuit breakers, automatic circuit breakers and electronic fuses.

In addition, the product range includes relays, power distributors and complete solutions in the control cabinet. E-T-A products offer the highest reliability against the consequences of overcurrent and short circuit. E-T-A is particularly concerned with protecting the lives and values of its customers. E-T-A can officially call itself the world market leader in the field of miniature circuit breakers and automatic circuit breakers. In a strictly scientific procedure, Swiss researchers from the University of St. Gallen determined E-T-A as the official world market leader in this segment.

E-T-A's focus in the project is to bring DC technology for higher voltages further to application maturity. The aim is to investigate and classify insulating materials. 

For this purpose, the ageing behaviour of insulating materials under DC voltage load is determined by means of artificially accelerated ageing. The model-aged insulating material samples are examined within the framework of the project with regard to the relevant electrical values. Based on the values determined in this way and the findings derived from them, real device insulation materials are examined with regard to their properties and ageing behaviour in order to finally derive results for component development and standardisation.