Voltage Frequency Guard

We are known as the leading importer and exporter of a supreme quality Voltage and Frequency Guard that is suitable for use in AC parts of photovoltaic systems or other types of AC electrical installations. Equipped with switching contact intended for external contactor control, when HUF gets connected, the contact will automatically operate to monitor system after initialization of its internal electronics. This product is designed using high quality components, which ensure its longer service life.  

Features:

• This device constantly monitors two basic magnitudes (voltage and frequency) of connected AC power system
• In case of deviation from the pre-set values the switch contact will open and consequently the external contactor will disconnect the equipment from the monitored AC power system
• It disconnects all protected equipment from monitored AC power system immediately
• HUF 003 is suitable for use in three-phase or in one-phase applications since reconfiguration of measuring mode is made automatically by inbuilt microprocessor
• The basic working limits of over voltage / under voltage / frequency and basic response time are set by producer
• The customer can alternatively change the pre-set basic limits by HUF MONITOR software after PC connecting to RS232 port of HUF

Technical Specifications