NDB2LM-63 Series Residual Current Circuit Breaker with Overcurrent Protection
Updated：July 17,2026 17:53PM
NDB2LM-63 series residual current operated circuit-breakers blocks is used for protecting earth leakage direct or indirect electric-shock on body and applied in low-voltage terminal distribution field including Industry Civil Building Energy Communication and Infrastructure etc.
2021 Quick Selection Guide »
Features of NDB2LM-63 Series
- Short circuit protection
- Overload protection
- lsolation
- Earth leakage
Technology data of NDB2LM-63 Series
| Product Name | NDB2LM-63 | ||||
| Standard reference | GB/T16917.1,IEC61009-1,EN61009-1 | ||||
| Product certification | CCC,CB,CE,TUV | ||||
| Number of poles | 1PN* | 2P | 3P | 3P+N* | 4P |
| Rated working voltage Ue(V) | AC110/120,AC230/240 | AC380/400V/415 | |||
| Rated frequency(Hz) | 50/60 | ||||
| Rated insulation voltage Ui(V) | 500 | ||||
| Rated impulse withstand voltage(kV) | 4 | ||||
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Instantaneous tripping characteristic |
B,C,D | ||||
| Rated current In(A) | 1,2,3,4,5,6,10,16,20,25,32,40,50,63 | ||||
| Rated residual current |
regular:30mA,100mA,300mA with time-delay:100mA,300mA(In≥25A) |
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Residual current operating characteristic |
A Type,AC Type | ||||
| Level of sensitivity | Empty=regular,S | ||||
| Rated breaking capacity(kA) | 10 | ||||
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Rated service short-circuit breaking capacity(kA) |
7.5 | ||||
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*1PN:1 protected pole with a uninterrupted neutral pole 3P+N:4 protected pole with a switched neutral pole |
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Factory Address：Pudong, Shanghai, China / Jiaxing, Zhejiang, China
Technical Support：+86-400-99-02706 Email：rfq@nader-circuit-breaker.com   |