???Wide Application?? Suitable for AC 50Hz / 60Hz circuits, with rated voltage 230V / 400V and current up to 80A, providing connection, disconnection, timing, delay, power distribution, and current load functions ???Reliable Protection?? Effectively safeguards circuits and electrical devices from overload and short circuits, ensuring safe and efficient operation, and supports motor startup with overload and short circuit protection ???Remote Control Convenience?? Enables remote control for opening and closing the circuit breaker, meeting the diverse needs of users with app control, voice commands, and more ???Smart Home Integration?? Compatible with Zigbee hubs, Tuya smart ecosystem, and works with Alexa and Google Assistant, allowing seamless integration into your smart home system ???Real-Time Monitoring?? Offers the ability to monitor and control devices remotely anytime, transforming ordinary household equipment into smart appliances Specifications: ?Standard Compliance: GB/T10963.1, NB/T 42149 ?Rated Voltage: AC 230V (1P, 2P) / AC 400V (3P, 4P) ?Number of poles: 3P ?Rated Frequency: 50Hz / 60Hz ?Pollution Degree: 2 ?Protection Class: IP20 ?Installation Category: II, III ?Operating Temperature: -25?? to +65?? ?Instantaneous Trip Type: C-type, D-type (special cases) ?Rated Short-circuit Breaking Capacity: 3kA ?Rated Impulse Withstand Voltage: 3kV ?Mechanical Life: >10,000 operations ?Electrical Life: >6,000 operations ?EMC Performance: Compliant with GB/T 18449 ?Surge Withstand: Compliant with GB/T 17626.5, 4.0KV voltage ?Salt Spray Resistance: Compliant with GB/T 2423.17, 48h ?Dust Resistance: Compliant with GB 4208, 8h Package included: ?1 x Circuit Breaker ?1 x English and Chinese User Manual