MCB NXB-63 1P 1A 2A 3A 4A 16A 32A 63A Miniature Circuit Breaker AC 230V DIN Rail Mounting Miniature Household Air Switch

NXB-63 1P type C NXB-63 2P type C NXB-63 3P type C NXB-63 4P type C 1. Major functionOverload protection, short circuit protection, positive isolation2. Technical parametersRated current: 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A; Rated voltage: 230V (1P, 1P+N), 230/400V (2 ~ 4P, 3P+N); Electromagnetic release type: C Number of poles: 1P, 1P+N, 2P, 3P, 3P+N, 4P; Mechanical life: 20000 cycles; Electrical life: 10000 cycles; Rated short-circuit breaking capacity(Icn): 6000A; Short-circuit breaking capacity (Ics): 6000A; Rated impulse withstand voltage (Uimp): 4kV; Power consumption on each pole of the circuit breaker: see Table 1.Table 1Rated current In (A) Maximum power consumption per pole (W)1~10 316 3.520~25 432 640 7.550 963 133. Dimensions and installation sizesStrong adaptability to environment and reliable operation in harsh environment-30~70 ambient temperature range, to meet the needs of various applicationsContact indicator window, clear positionAll models of contact head position visualization, avoid wrong operation, use more reliableCircuit breaker and leakage protection choose1.The main switch of the household distribution box is usually a 32A-63A mini circuit breaker or leakage protection circuit breaker which can disconnect the phase line and neutral line at the same time 2.10A-16A miniature circuit breaker is generally selected for circuit 3.Socket circuit generally selects 16A-20A leakage protection circuit breakerSwitch current is selected according to equipment power1.Calculation = power/voltage *3 (impact current) 2.For example: 3000W equipment 380V voltage select circuit breaker, 3000W*3 (impulse current) /380V 23.68A 25A, we choose 25A circuit breaker or leakage circuit breakerHow to choose the type C and type D electromagnetic tripThe long delay action range of type C is 5in-10in; The long delay action range of type D is 10in-12in.(In is the rated current of the switch) Type C is used in light load areas such as distribution control and.Type D can be used in load starting places, such as motor starting, can avoid the equipment after starting the instantaneous current is too large to cause unnecessary overload switch trip.Can't shut down1.Whether the load port is short circuited 2.Operating mechanism failure 3.The rated current of the circuit breaker does not match the load currentHigh temperature1.The wiring screw is loose without tightening the wire 2.The chosen wire section area is too small, the wire is too thinNot disconnected in short circuit1.The selected circuit breaker does not match the working conditions of the loadNo electricity1.Too little lead head stripping 2.The wiring screw is loose without tightening the wireType : MiniType : Moulded CaseModel Number : NXB-63Electromagnetic release type : CVoltage : AC 230/400VPoles Number : 1PRated Current : 1~125A

• CWCKDJDH MCB NXB-63 1P 1A 2A 3A 4A 16A 32A 63A Miniature Circuit Breaker AC 230V DIN Rail Mounting Miniature Household Air Switch