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KNL1-100 Residual Current Circuit Breaker
KNL1-100 Residual Current Circuit Breaker
KNL1-100 Residual Current Circuit Breaker
KNL1-100 Residual Current Circuit Breaker
KNL1-100 Residual Current Circuit Breaker
KNL1-100 Residual Current Circuit Breaker

KNL1-100 Residual Current Circuit Breaker

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KNL1 series Residual current circuit breaker(without over-current protection) is suitable for the line of AC 50/60Hz, voltage 240V(2 pole)/415V(4 pole), rated current up to 100A.

   KNL1 series Residual current circuit breaker(without over-current protection) is suitable for the line of AC 50/60Hz, voltage 240V(2 pole)/415V(4 pole), rated current up to 100A. When there is human electricity shock or if the leakage current of the line exceeds the prescribed value, it will cut off the power rapidly to protect human safety and prevent the accident due to the current leakage. It can be used as infrequent changeover of the line in normal situation.It is applicable to industrial site, commercial site, tall building and civil house.
    It complies with standard of GB16916.1 and IEC/EN61008.1.

Frame100A
Rated working voltage240/415V
Rated frequency50/60Hz
Rated working current63、80100A
Rated residual operating current0.030.10.30.5A
Rated residual un-operating current0.015、0.050.150.25A
SensibilityA TypeAC Type
Maximum operating timeI△n   t0.3s , 5In   t0.04s
Rated making and breaking capacity1500A
Limiting value of un-operating current6In
Rated limiting short-circuit current3000A
Pole number2、4P
Mechanical life10000
Electric life4000

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    Each phase of conductor at the circuit breaker passes through the zero-sequence current transformer, and the secondary side of coil connects with the electromagnetic tripper. Under normal condition, the vector sum of each phase of current passing through zero-sequence current transformer is zero. The flux of the zero-sequence current transformer is zero. And the secondary output voltage is zero and the circuit breaker doesn’t zero, and the zero-sequence current transformer would produce the magnetic flux, and the secondary side of coil would output the voltage. Once the leak current increases to drive the output voltage at the secondary side to grow to certain level, the electromagnetic release would activate to drive the operation mechanism to act to break the contact that connects the power, finally to realize the leak protection.
 
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