Adjustable Over/Under Voltage Protector, Three-Phase Over/Under Voltag

【Automatic Voltage Current Protector】When an overvoltage, undervoltage or overcurrent occurs in the circuit, the voltage protector can immediately cut off the power supply to protect the electrical equipment from damage. And automatically resets when the line voltage returns to normal. 【Circuit Protection】The surge protector is suitable for monitoring four-wire, three-phase power systems or electrical equipment, providing protection against overvoltage, undervoltage, overcurrent, three-phase asymmetry, and phase sequence errors in electrical equipment, thus protecting your electrical safety. 【Real-Time Monitoring】The voltage stabilizer uses an LCD screen with dual overvoltage and overcurrent display, so the voltage status is clear at a glance, and the real-time display is clearer. 【Easy to Use】The surge protection device is installed on the universal standard DIN35mm guide rail; no screws are required, making it easy to install, compact, convenient, and practical. 【Safe [Easy to use] Built-in magnetic locking relay, which will not burn out due to high current impact. The casing is made of high-quality PC material, flame-retardant and high-temperature resistant, with insulating protection.