The M200-V33X AC voltage relay provides voltage monitoring and protection in three phase three wire systems.
They are used in applications such as mains failure, regulation of power supplies and to protect voltage sensitive equipment.
The relay operates when the externally adjustable trip point is reached. To prevent nuisance tripping when there is a slight variation in voltage supply an external time delay control is provided with adjustment from 200mS to 10 seconds. There is an internal differential set at 1% of nominal voltage.
On under units the relay de-energies when the input signal goes below the trip point.
A red LED indicates the state of the relay, whilst a green LED indicates the condition of the power supply.
The voltage relays monitor their own power supply so auxiliary power is not necessary. A green LED indicates a supply is present. The relays feature an adjustable power supply, allowing flexible selection of the connected nominal voltage.