Description: Before using this device, you must add a gateway. The gateway is not included and needs to be purchased separately When buying this product, be sure to pay attention to whether the voltage matches. Please connect the incoming line from the top of the product, and connect the outgoing line from the bottom of the product Remote control at anytime from anywhere,no distance limit. Schedule ON/OFF Voice control for Amazon Alexa and Google home,IFTTT,SmartThings Overload and short circuit protection Over voltage and surge protection The ZJSB9 series of intelligent miniature circuit breakers reflect the latest design concepts and manufacturing techniques, featuring compact size, long life, modularity, high breaking, and intelligent remote control. Applicable to AC 50Hz60Hz, rated voltage 220V/380V, rated current to 125A, for switching on, breaking, timing, delay and distributing electric energy and carrying rated current; and can overload and short circuit in line and equipment The protection of the line and the electrical equipment in the case can also be used as the infrequent start-up and overload and short-circuit protection of the motor. More importantly, it can directly control the circuit breaker closing and opening control on the remote control device, and can be shared with other users through the extended function, timing, delay and other setting functions to meet the needs of different users. Built-in anti-jamming chip. Enhance the stable transmission and reception , prevent clutter interference. Professional EMC test, professional EMC comprehensive test to ensure the communication process is safe and reliable. Withstand voltage of 6000V, it can effectively improve the service life of equipment even under overvoltage conditions. EMC electromagnetic interference performance experienced electrical fast transient burst immunity test, surge test, electrostatic discharge test, etc., the product remains intact. High mechanical life, the product organization is still close to 120 times per hour, and it still maintains good operation after 10,000 cycles. Quick closing function, improve the opening and closing performance to prevent overheating and aging, and prolong the service life. Ergonomic design work more efficiently. Simulated thermal imaging design with lower temperature. Air blow arc principle, faster arc extinguishing. One mobile phone can control all electrical appliances with one APP Island power supply, tower equipment, outdoor lighting, house power supply, field engineering, mountain facilities, street lighting control. Work with : Alexa , google home Fun