1、Fast Arc Extinguishing: This miniature circuit breaker rapid arc extinguishing system, fast arc extinguishing, to avoid electrical fire, for the safety of the use of the environment to make a guarantee. 2、Short Circuit Protection Design: Our miniature circuit breaker has short circuit protection, electromagnetic disconnect mechanism to stabilize the current, safety protection, no problem. 3、Easy to Disassemble: Miniature circuit breaker has a double locking clip structure, horizontal operation during installation, narrow environment disassembly and installation, more convenient and fast. 4、More Efficient: Our miniature circuit breaker's more efficient power distribution capability improves the efficiency of workers, making the work process easier and enhancing the user's experience. 5、Wide Application: Miniature circuit breakers are widely used in civil and commercial buildings as well as industrial places for power distribution protection, if you have related needs then this one is for you. Item Type: Miniature Circuit Breaker Material: PA66 Voltage: 400V Main FeaturesConforms to IEC60947-2Rated Insulation Voltage(Ui) 500VACPollution Level 3Surge Voltage Resistance(Uimp) 6kVMagnetic Decoupling B Curve (3-5)lnThermal Derating Reference Adjustment Temperature  30℃C Curve (5-10)ln Use Category AD Curve (10-14)ln Conform to IEC60898-1Current Limiting Class 3Single Pole Breaking Capacity(Icn1) Icn1=Icn(6000A)Other ParametersProtection Class (IEC60529) Circuit Breaker Body IP20IP20Installed in distribution box IP40 Insulation class: ⅡOvervoltage Category(IEC60364)ⅣResistance to heat and humidity (IEC60068-1) Category 2 (temperature 55°C, relative humidity 95%)Wiring MethodUp in and down out, down in and up outFunctionShort circuit protection, overload protection, control isolationElectrical Life 10,000 timesMechanical Life 20,000 timesOperating Environment Temperature -35℃ - +70℃Storage Environment Temperature -40℃ - +85℃ 1 x Circuit Breaker