Littelfuse 355200 Voltage Monitor 190-240V/3PH

The Littelfuse 355200 Voltage Monitor works as a three-phase voltage monitoring relay that protects HVAC systems and pump panels and oil rigs from electrical anomalies. The part functions between 190-240V AC voltage levels while using microcontroller technology to check electrical conditions and automatically disconnects the output relay when high/low voltage or phase reversal occurs. The part offers adjustable time settings for both trip and restart functions that stop unnecessary outages and enable controlled motor activation sequences. The part shows diagnostic LED indicators which help users easily identify system status for improved troubleshooting.