and ! Built-in-jamming chip to enhance the stable transmission and reception of WiFi signals, to prevent clutter interference. WiFi: 2.4 GHz Remote Control: By smartphone application from anyway (the smartphone must connect to the internet in WiFi or 3g/4g) Application: Tuya APP (Free Download In IOS And Andorid) Function: Switch On / Switch Off / Timer Schedual / Smart Scene Work With: , Home, IFTTT . Function: Overload, Short-Circuit, Isolating EMC electromagnetic interference performance Experienced rapid transient burst immunity test, surge test, electrostatic discharge test, etc.The product remains intact. Professional EMC test Professional EMC comprehensive testing to safe and reliable communication process. Impact withstand voltage 6000V Guaranteed to increase the service life of equipment even under overpressure conditions. High mechanical life The product organization still maintains good operation after experiencing 10,000 operations per hour of 120 closing cycles. Rated voltage: AC400V (4P) Number of poles: 4P Rated frequency: 50/60Hz Pollution level: level 2 level: IP20 Rack rated current: 100A Rated current: 16A,20A,32A,40A,63A,80A,100A Instantaneous form: C Rated impulse withstand voltage: 6000V Control level voltage: AC220V Color: As shown Material: plastic Package Contents: 1 x Circuit Breaker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.