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