Over Under Voltage Protection: This circuit breaker provides comprehensive over and undervoltage protection alongside overcurrent safeguards to insure your electrical appliances are shielded from harmful power fluctuations and potential damage. Wide Voltage Compatibility: With a voltage measurement range of 100290V this device is suitable for various electrical systems, offering a general solution that accommodates diverse power supply conditions. Versatile Measurement Capabilities: Accurately measure current up to 63A power up to 17KW and electricity consumption up to 9999Kwh, providing detailed insights into your energy usage patterns. Applications: Residential protection for homes and appliances, including safeguarding devices from voltage fluctuations; small office or retail spaces to protect equipment; environments with variable power or renewable sources to stabilize loads and monitor energy consumption with precision.