• Digital voltage indicator and fault detector
• Over voltage detection with 0.5sec~120sec tripping delay
• Under voltage detection with 0.1sec~10sec tripping delay
• Phase-loss detection with 2sec fixed tripping delay
• Phase sequence detection with 0.5sec fixed tripping delay
• 3-phase voltage balance(±5%) decetion with3sec fixed tripping delay
• Phase-loss detection with active motor
• Manual / Auto Reset selectable - 1sec or 5sec auto reset tripping delay