Chint NXBLE-63/4P C20A residual current operated circuit breaker is an electrical product for circuit protection launched by Chint, with overload, short circuit and leakage protection functions. The specific parameters are as follows:
Rated current: 20A, that is, the maximum current allowed to pass through the circuit breaker when it is working normally is 20A.
Number of poles: 4 poles, suitable for three-phase four-wire circuits, and can protect and control the three-phase live wire and neutral wire at the same time.
Rated residual operating current: There are 0.03A, 0.05A, 0.075A, 0.1A, 0.3A and other specifications to choose from. When the leakage current in the circuit reaches the set value, the circuit breaker will quickly trip and cut off the circuit.
Rated voltage: 400V~, suitable for AC circuits with a rated voltage of 400V.
Frequency: 50/60Hz, can be used in 50 Hz or 60 Hz AC power supply systems.
Tripping characteristics: C-type tripping characteristics, suitable for conventional load and distribution line protection, can trip according to a specific time-current curve when the current suddenly increases.
Mechanical life and electrical life: The mechanical life is 20,000 times and the electrical life is 10,000 times, with high reliability and durability.
Rated short-circuit breaking capacity: 6000A, which means that the maximum short-circuit current that the circuit breaker can safely cut off is 6000A, which can quickly cut off the current and protect the circuit and equipment when a short-circuit fault occurs in the circuit.
Rated impulse withstand voltage: 4kV, can withstand a certain intensity of voltage shock, enhancing the stability and safety of the product in complex electrical environments.