About This

Comprehensive Over/Under Voltage Protection: This three-phase over/under voltage protector effectively detects abnormal voltage (too high or too low) and cuts off power quickly, protecting electrical equipment from damage.
100A High Current Bearing Capacity: Rated 100A current, the 100A three-phase protector supports stable operation of high-power three-phase equipment, ensuring reliable protection without current limitation.
Phase Failure & Phase Loss Protection: Equipped with phase failure protector function, it promptly responds to phase loss,(phase break) and phase sequence abnormalities, avoiding equipment burnout caused by unbalanced three-phase power.
Overcurrent & Overload Protection: Integrated overload protector design, it monitors current in real time, cuts off power when overcurrent or overload occurs, preventing circuit overheating and fire hazards.
Wide Application Scope: Ideal for three-phase motors, water pumps, air compressors, factories, workshops, commercial buildings, and high-power three-phase electrical systems—suits all 100A three-phase protection needs.