Monitoring device for power supply e.g. for small-scale purification plants, has mains supply drop-out circuit housed with signal generator and power supply source, with looping though of consumer/load power

摘要

A device for monitoring the power supply of an electrical consumer/load (11) has a mains drop-out circuit for recognizing the drop-out of the power supply, and a signal generator for providing a signal during failure of the power supply, and a power source for the signal generator. The mains drop-out circuit, the signal generator and the power supply source are arranged in an adapter housing for looping through the power for the consumer/load.