Description
Voltage relay DigiTOP VA-25A G3W is designed to protect electrical devices and household appliances from high or low mains voltage and overcurrent protection. The device performs the functions of both a voltage relay and a maximum current relay simultaneously. It is controlled by a microcontroller that analyzes the voltage and current in the load circuit, displaying the current effective values on a digital indicator. The power consumption can be displayed on the lower indicator. The device disconnects the load if the voltage goes out of the set range. The load is switched on automatically when the voltage returns to the set range. The user sets the required upper and lower voltage limits and the switch-on delay time. The device can operate with voltage sources with unstable frequency, such as generators.
Allowable shutdown limits, switch-on delay time, frequency control mode selection and digital display brightness level are set by the user using the buttons located on the front panel of the device. All set parameters are stored in non-volatile memory.
Technical specifications
Operating voltage ~50-400V
Operating frequency 45-65HZ
Nominal current 25A
Maximum current 32A
Nominal power 5,5kW
Current disconnect threshold 1-Inom
Upper voltage threshold ~210-270V
Lower voltage threshold ~120-200V
Disconnect time at upper threshold 0,02sec
Disconnect time at lower threshold, no more than, 1sec (120-170V), 0,02(<120V)
Voltmeter accuracy <1%
Measurement accuracy of current <1%