A relay for monitoring high AC or DC current by connecting AC current transformator with secundary current of 0-1,0A AC or a DC shunt with voltage drop of 0-60mV DC.
The relay is delivered in two variations for over-or under-current.
Over-current:
When the monitored current rises and reaches the determined setpoint, which is adjusted on the front panel, the relay energises. When the current drops and passes the setpoint, minus the hysteresis which is adjustable on the front, the relay de-energises.
Under-current:
When the monitored current drops and reaches the determined setpoint, which is adjusted on the front panel, the relay energises. nWhen the current rises and passes the setpoint, plus the hysteresis which is adjustable on the front, the relay de-energises There is also a latch function where the relay after energising will remain energised, regardless of input current, until the latch jumper or the operating voltage is disconnected. Typically used in safety circuits. The contact function of the relay can also be inverted. The relay has an analogue, 2-10V DC, output which when connected to an external voltmeter can be used for the accurate adjustment of setpoint.