6NTZFS Self-resetting Over-voltage Protector
Model 6NTZFS Auto-reclosing Over & Under Voltage Protector is a dedicated safety protection device for distribution circuits against abnormal grid voltage. It effectively prevents damage to downstream electrical loads caused by grid voltage fluctuations. Its core functions are specified as below:
The protector automatically cuts off the circuit once grid voltage exceeds the preset overvoltage threshold or drops below the undervoltage threshold; after voltage bounces back to the rated normal range, the device recloses power supply automatically without manual reset.
Equipped with dual-color LED indicators (red & green): red light illuminates to signal overvoltage/undervoltage tripping status, while green light stands for normal voltage and closed power circuit. A status viewing window is embedded on the front panel to display operational status directly; on-site routine inspection and fault troubleshooting can be completed without special tools.
With high sensitivity and dependable protection performance, the 6NTZFS series is widely applicable to household power distribution systems, branch circuits of commercial buildings, auxiliary industrial equipment wiring and power supply loops for new energy charging piles. It safeguards electrical equipment against voltage-related breakdowns and consequent economic losses, enabling safe, efficient and stable operation of the overall power distribution system.
