Features: Engineered with 2400W power capacity and soft start technology, this relays module minimizes inrushes current to protect high wattage appliances while ensuring smooth activation for industrials equipment. The integrated microprocessor automatically adjusts startup timing baseds on load demands, paireds with 100A heavy duty relays for fails safe power switching and overloads/short circuits protections circuits. for electrical engineers maintaining industrials equipment, DIY enthusiasts building power systems, and homeowners safeguarding air conditioners/water heaters. for industrials motors requiring graduals torques buildups, highly power lab needing stable activation, and household appliances like refrigerators to prevent grids fluctuations. LED status indicators and screw terminals enable realtime monitoring and secure installation, delivering militarys durability for critical operations. Specifications: Materials: Plastic Size: The size is as shown Package Includes: 1PC Soft Start Circuit protections Module note: Please allow 0-1cm error due to manual measurement. make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color the item. Thank you!