Crouzet Voltage Monitoring Relay, 1 Phase, SPDT, 9 → 15V dc, DIN Rail

MUS and MUSF voltage control relays monitor single phase DC network voltages. These products monitor their own supply voltage. MUS relays allow the operator to choose between two operating modes: Under/overvoltage and with or without fault latching. An adjustable time delay, on threshold crossing, provides immunity from transient phenomena, thus preventing spurious triggering of the output relay.

Control relays monitoring their own power supply
MUS: Over/Undervoltage control selectable latching (memory) function
MUSF: Over/Undervoltage control
Adjustable time delays
Control in 50 Hz, 60 Hz or True RMS measurement
LED status indication