•【Smart WiFi Control】Tuya smart circuit breaker enables remote control and monitoring of your electrical system through WiFi connectivity, bringing convenience to your smart home setup •【Enhanced Safety Features】Features a 6kA short-circuit breaking capacity and 6kV rated impulse withstand voltage for improved protection against electrical faults •【Durable Performance】Boasts a mechanical life of over 10,000 operations and an electrical life exceeding 6,000 operations, ensuring long-term reliability •【Wide Operating Range】Designed to function effectively in temperatures from -25 to +65℃, suitable for diverse environments •【Environmental Resilience】Complies with stringent standards for EMC performance, surge withstand, salt spray resistance, and dust resistance, guaranteeing stable operation in various conditions Specifications: •Standard Compliance: GB/T10963.1, IEC60898-1 •Rated Voltage: AC400V •Rated Frequency: 50Hz •Pole: 4P •Pollution Degree: 2 •Protection Class: IP20 •Installation Category: II, III •Operating Temperature: -25 to +65℃ •Frame Size Rated Current: 80A, 125A •Rated Current: 125A •Instantaneous Tripping Type: C •Rated Short-circuit Breaking Capacity: 6kA •Rated Impulse Withstand Voltage: 6kV •Mechanical Life: >10,000 operations •Electrical Life: >6,000 operations •EMC Performance: Complies with GB/T 18449 •Surge Withstand: Complies with GB/T 17626.5, 4.0KV •Salt Spray Resistance: Complies with GB/T2423.17, 48h •Dust Resistance: Complies with GB 4208, 8h •Maximum Wiring Capacity: 50mm² •Tightening Torque: 4-5Nm Package included: •1 x Circuit Breaker •1 x English and Chinese Manual