Description
The Littelfuse 350400 Voltage Monitor is a 3-phase electrical monitoring module designed for 380–480V power networks. The unit supervises voltage conditions and identifies phase loss, overvoltage, and undervoltage, sending signals to control circuits to reduce risk to connected equipment. In HVAC systems it is installed within power control panels to support stable operation of compressors, motors, and other load components. It is applied in industrial and business settings where three-phase electrical supply is required for automated systems and motor-driven assemblies within protection circuits of power distribution setups.
