For supplying power to manufacturing systems, safety plays a large role. In low-voltage main distribution boards, circuit breakers are typically used to safely prevent excess currents and switch off the power supply in the case of a short circuit. Therefore, monitoring systems is particularly important to enable fast re-establishment of the power supply in the event of an interruption. Schaeffler, an industrial and automotive supplier, therefore uses fieldbus couplers from WAGO in their roller bearing production at their Schweinfurt, Germany facility.