KYCM2NB series intelligent miniature circuit breakers have the characteristics of advanced and reasonable structure, reliable performance, high breaking capacity, and beautiful appearance. The shell material is composed of high-quality impact-resistant and high-flame retardant materials. It is suitable for indoor, AC 50Hz, rated voltage 230V, three-phase 400V, and rated current not exceeding 100A. It is mainly used for low-voltage terminal power distribution in industrial, commercial, civil buildings and infrastructure in buildings and similar places. Leakage, overload, short circuit, over-under-voltage, over-heating, and lack of equal protection can also be used for infrequent on-off operations. The leakage circuit breaker with the rated residual operating current less than 30mA can provide protection for personal electric shock.
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Number of poles |
1P, 2P, 3P, 4P |
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Breaking capacity |
1A-63A, 10kA |
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80-100A, 6kA |
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Rated voltage |
230/400V AC |
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Rated current |
1A-100A |
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Residual current type |
A type, AC type |
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Residual current specifications |
30, 100, 300mA or adjustable |
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Trip time |
Standard type, time delay type, adjustable type |
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Configurable leakage function |
Shut down, alarm, alarm and protection |
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Leakage self-test |
Automatic non-trip self-check, remote and local trip self-check |
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Short circuit protection |
Type B, Type C, Type D |
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Trip time |
＜0.1s |
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Overcurrent protection |
Thermal element + electronic |
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Thermal trip |
Inverse time limit |
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Electronic trip |
Inverse time or definite time |
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Working current |
Electronically adjustable |
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Overvoltage protection |
JB/T 12762 OUPA standard |
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Overvoltage setting value |
275V |
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Undervoltage setting value |
0.7Ue |
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Action time |
Standards compliant |
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Meet the standard |
Shut down, alarm, alarm and protection |
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Terminal temperature rise protection |
Alarm + protection |
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Temperature rise alarm setting value |
＞50K |
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Temperature rise action setting value |
＞60K |
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Action time |
15min |
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Temperature rise protection function can be configured |
Shut down, alarm, alarm and protection |
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Three-phase unbalance |
Monitoring + alarm |
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Lack of phase |
Monitoring + alarm + protection |
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Configurable function |
Shut down, alarm, alarm and protection |
