• Developed for use in mobile machines
  • Control via CAN bus
  • Customer-specific integration possible 

The high intermediate circuit voltage of max. 800 VDC for the electrification of mobile machines also requires components which guarantee the system safety. System-specific parameters such as the intermediate circuit voltage and the insulation resistance are permanently monitored through measurements. If deviations occur, remedial measures are initiated. The STW insulation monitor is used to monitor the insulation resistance. This features a new measuring procedure which supplies measuring results in a quicker, simpler way. In addition, it can determine the leakage capacitance in a system. 
Overvoltages in the intermediate circuit are prevented by the brake chopper. If a voltage threshold is exceeded, the brake chopper connects high load resistances which transform the excess energy into heat and dissipate this heat via oil cooling.
All the components for system safety are available either in a standalone variant or can be adapted to the specific customer application and integrated into STW system products.


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While we are proud of our products and solutions, it is through our customers’ applications that the power in the innovative technology is unleashed.  Whether fully networked, highly automated, or operating fully autonomously, an effective mobile machine represents first class interdisciplinary engineering. Robust and safe integration into the system architecture of the machine and its work processes, while remaining convenient and user friendly, is the main focus. With thanks to our customers, here we would like to present a small selection of example applications.



We support our customers as a partner for the digitization and automation of mobile machines and the related work processes. Our comprehensive and highly interoperable STW modular system of high quality sensing, control and software products ensures a problem free integration in the final application.


As experts in all aspects of functional safety, we offer services in high level automation in the field of mobile machines, including autonomous functions and driving. Our STW ecosystem includes a comprehensive partner network of system integrators and distributors to ensure an optimal solution for every application, worldwide.


We accompany our customers from the start whenever the E/E system in mobile machines is concerned. For this purpose, we develop solutions to support the entire machine lifecycle. We offer our competence, our services, our products and the associated tools in the individual phases in order to make an efficient and continuous contribution towards the success of the machine. 



The STW "ECO System" is characterized through the integration of systems and products which transcend the borders between solution areas. Our partners also supplement the STW product and services portfolio for the benefit of our customers. The open nature of the product portfolio permits easy integration of the products into third-party systems or the supplementation of our system through further products by third party providers.