Schneider Electric Zelio control relay for undervoltage or overvoltage detectio

Zelio RM17 is a compact series of control relays which is easy to mount on a DIN-rail.The relays are available for either 1 phase or 3 phase applications and are able to measure the voltage, current, phase-loss, phase-sequence and asymmetry between phases.With a width of only 17,5 mm they only take up a very limited space on the DIN-rail and they also fit behind the cover of a standard panel.RM17UAS15 is a control relay for either overvoltage or undervoltage from 65..260 VAC/DC.The measurement is done directly at the supply terminals in the top and the output contacts are located in the bottom.On the front of the relay are 4 dials for setting up the relay:The first dial adjust the function of the relay (overvoltage or undervoltage) and if the relay need to be powered off before resetting the output (memory function).The second dial adjust the threshold in volt from 65..260 VAC/DC.The third dial adjust the hysteresis which can be between 5..20%.The fourth dial adjust the delay of the output from 0,1..10 seconds.The control relay has a 1 C/O output contact with a maximum load of 5A.On the front of the relay is 2 LED's for indication of the relay status.The green LED indicates that the supply is present and the yellow LED indicates the status of the relay output.