Frequency fluctuation tolerance: The refrigerator compressor relay flexibly handles changes in the power network frequency, maintaining stable, continuous operation of the compressor regardless of frequency variations. Shortened startup time: The relay quickly receives the startup signal, greatly reducing delay and allowing the compressor to reach operating state rapidly. Adaptive cooling for food storage: The relay adjusts the compressor's operating intensity in response to changes in food storage, ensuring appropriate cooling to meet colddemand requirements. Smooth refrigeration cycle: By regulating the compressor's running rhythm and matching the refrigerant flow rate, the relay supports a steady and efficient cooling cycle. Applications and use scenarios Homes in areas with unstable or fluctuating power supply, where reliable compressor operation is essential to prevent temperature excursions. Commercial refrigeration units (such as grocery, convenience stores, or restaurants) that experience varying cooling loads and require quick startup and stable operation. Food storage facilities or laboratories that demand precise temperature control and smooth refrigeration cycles despite changes in storage conditions or door opening frequency. Systems that rely on standard refrigerator compressors and require robust relay performance to maintain consistent cooling performance without frequent interruptions.