SGD5

Auto-reclosure Over & Under Voltage Protectors, digital DIN rail single-phase voltage monitoring modules, automatically cut off loads and delay power restoration to safeguard household & light industrial single-phase electrical appliances against abnormal grid voltage fluctuations.

230V AC, 50/60Hz; 40/63/80A rated current.
Adjustable overvoltage 230–300V (reset 270V).
undervoltage 140–210V (reset 170V).
Digital display & SET adjustment buttons.
35mm DIN rail mount.

Product
Description

This SGD5 digital single-phase voltage protector adopts real-time digital voltage detection for 230V single-phase AC circuits. It automatically disconnects power when voltage exceeds or falls below preset limits, and restores power after user-defined delay when voltage returns to normal range. The digital screen visualizes real-time line voltage, with physical buttons for flexible parameter calibration to match different power supply environments.

With compact modular outline and low power loss, it fits seamlessly inside standard household distribution boxes. Wide adjustable voltage and delay parameters effectively avoid equipment burnout caused by grid voltage instability, suitable for residential apartments, small shops and single-phase light industrial power distribution scenarios.