Automatic three phase transfer switch with realtime monitoring and multilevel protection designed to protect household appliances and power equipment from voltage and current faults. Key benefits Automatic three phase switching: Continuously monitors all three phases and switches automatically to an available healthy phase when the active phase shows a fault, restoring normal power without manual intervention. Multilayer protection: Detects overvoltage, undervoltage, and overcurrent on the active phase. When a fault is detected, the switch transfers to another phase and will automatically to the priority phase once conditions are normal. Adjustable thresholds: Factory settings suit most installations, and overvoltage, undervoltage, and overcurrent trip points can be adjusted to meet specific system requirements. Realtime display: 4 digit LED shows voltage and current readings in real time, enabling clear, immediate visibility of supply conditions for accurate protection and reliable phase transfers. Default safety limits: Undervoltage tripping at 170 volts or below and overvoltage tripping at 270 volts or above, as set by default. Functions and performance Supports three phase voltage switching with automatic selection and topriority behavior. Provides continuous safeguarding of connected equipment by preventing operation under unsafe voltage or excessive current. Fine tuning of protection parameters allows use with grids, backup generators, and inverter systems to protect sensitive electronics from surges, drops, and overloads. Compatibility and applications Designed for household electrical systems and compatible with standard three phase installations, backup generators, and inverter setups. Suitable for protecting appliances, home automation systems, and other sensitive devices that require stable voltage and current. Practical use scenarios Homepower continuity: In homes with fluctuating phase supplies, the device automatically switches to a stable phase to keep refrigerators, HVAC, and other essential appliances running. Backup generator integration: When the main phase exhibits undervoltage or overvoltage, the switch moves the load to a healthy phase or to generator power and returns to the priority phase when the grid stabilizes. Inverter and microgrid protection: Use with inverters to prevent equipment damage from voltage spikes, drops, or overloads and to ensure reliable phase selection during transitions. What you get Automatic transfer switching between three phases Overvoltage, undervoltage, and overload protection with adjustable setpoints Realtime voltage and current display for monitoring and diagnostics Automatic to priority phase once normal conditions are restored This automatic transfer switch provides dependable, adjustable protection and clear monitoring to reduce equipment damage and minimize downtime in three phase installations.