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HLVD - 20 amp

HLVD - Hardwired (20 Amp) from Thor technologies





Product Description

When power voltage fluctuates electrical equipment suffers. The HLVD is designed to automatically detect a problem then offer shutdown protection until the danger subsides. Once the voltage returns to a safe level then the HLVD automatically re-activtes power to the circuit. The protection is against both high and low voltage incidents.The HLVD has an inbuilt factory delay of 3 minutes this is primarily because it is designed to protect electric motors, refrigeration and air-conditioing compressors from burning out or blowing up. If a compressor is under load and the power is turned on/off quickly this action can cause a compressor irrepairable damage. If an electric motor is supplied low voltage for a period of time this type of supply can cause the motor to burn out.

The HLVD will allow power to pass through as long as the voltage supply is above 190V (low) or below 270V (high). Should the voltage move out of the predefined "safe" window then the HLVD reacts by offering shutdown protection and cutting supply until the voltage supply returns to the "safe" level. If the power moves in and out of the "safe" level then each incident resets the on board clock count down to reactivation, this feature prevents damage occuring when voltage is unstable or erratic.

The delay can be reduced down to seconds or increased if need be. An example of reducing the delay could be applied to applications where equipment is not pressurised or does not require any lenghty delay. An example would be a lighting circuit, in this example the lights may become damaged if there is too much voltage going through and the HLVD would be a great option to protect the circuit. Other applications may be control equipment or PLC's, printing presses, commercial kitchen equipment, office printers, photocopiers, dishwashers, fridges, freezers, dryers etc.


Product Dimensions: 70mm x 90mm x 60mm



    High/Low Voltage Detector
    3 minute (factory set) delay
    20 Amp Din Rail Mount
    100% Australian Made


Description Specification
Supply Voltage 240Vac 50/Hz
Maximum Current Rating 20amps/4800 W (Va)
Reaction Speed 800 m/secs
Detection Voltage 190v to 270v
Delay 180 seconds (3 minutes)
LED (combination) Green = OK Orange = delay mode Red (slow flash) = high voltage detected Red (fast flash) = low voltage detected
Reset Delay override
Housing High temp/High impact Polycarbonate Housing Din rail Mount
Operating conditions Indoor/AC Mains
Operating Temperature -10 °C/+60 °C
Model Number HLVD 20 Amp


Price $399.00 inc gst , plus delivery


Installation estimate for those that live within a 10km radius of Croydon

$150.00 inc gst plus safety certificate


Please note cost can vary due to the variation of different installations

WARNING: It is illegal for persons other than licensed electrical mechanics, or persons authorised by legislation, to work on fixed wiring of any electrical installation.