EARU EAATS-D-4-4P-220-100A Three Phase Overvoltage Undervoltage Protector

EARU EAATS-D-4-4P-220-100A Three Phase Protection Features and Specifications

The EARU voltage protector monitors all three phases plus neutral continuously, detecting overvoltage and undervoltage conditions within milliseconds to prevent equipment damage from unstable power supplies. This three phase overvoltage and undervoltage protector integrates an automatic transfer switch rated at 100A, allowing seamless load transfer between primary and backup power sources without manual intervention. The compact DIN-rail design installs directly into standard electrical enclosures alongside contactors, relays, and circuit breakers, saving valuable panel space. Overcurrent protection functions prevent damage from short circuits and overload conditions by triggering automatic disconnection when current exceeds 100A thresholds. A built-in phase selector ensures correct phase sequencing and detects phase loss conditions that could damage three-phase motors or equipment.