Adjustable voltage for relay with surge protection for circuits Stable and reliable performance: This adjustable digital relay is designed with a standard 36 mm rail size, ensuring stable operation and dependable performance. Comprehensive protection features: Provides overvoltage and undervoltage protection, and overcurrent protection to safeguard household circuits and connected appliances. Automatic recovery function: If faults or abnormalities occur, the relay automatically recovers to restore normal circuit operation, improving convenience and peace of mind. Clear benefits at a glance: Protects circuits and appliances from voltage fluctuations and surges Easy to install on a standard 36 mm DIN rail Builtin protections reduce the risk of damage to devices and wiring Automatic recovery minimizes downtime and manual intervention Applications and use scenarios: Home electrical panel: Protect lighting circuits, outlets, and kitchen appliances from surges and voltage variations Small office or workstation area: Safeguard computers, routers, printers, and other IT equipment against overcurrent and voltage disturbances Essential equipment protection: Use with HVAC controllers, pumps, or other critical loads to maintain reliable operation and quick recovery after faults