Feature of NDB2 Series Nader MCB Circuit Breakers
- Quick closure: Enhances the circuit breaker’s reliability in handling impact loads and extends its service life.
- Product structure offers short-circuit current limitation, thereby enhancing short-circuit breaking capacity.
- Frame wiring structure: Ensures reliable wiring.
- Accommodates a variety of accessories, making function extension simple and convenient.
- Modular design allows for arbitrary combinations, promoting flexibility and modularity.
Specification of NDB2 Series Nader MCB Circuit Breakers
| Product models | NDB2-40 | NDB2-63 | NDB2T-63 | NDB2T-63
（UL489） |
NDB2-63K |
|
Rated operational voltage（V） |
AC230/240 |
AC230/240（1P） AC400/415(2P/3P/4P) DC80(1P/2P) |
AC230/240（1P） AC400/415(2P/3P/4P) DC60/80（1P） DC80/125（2P） | AC120/240 AC277/480 DC60(1P/2P) DC125(2P) |
AC230/240 |
|
Rated operat- ing current (A) |
2～40A |
1～63A |
1～63A |
1～63A |
1～63A |
| Number of poles |
1P+N |
1P、2P、3P、4P |
1P、2P、3P、4P |
1P、2P、3P |
1P+N |
| Product certifi- cation | CCC、CE、TUV、UL1077 |
CCC、CE、TUV、UL1077 |
CCC、CE、TUV、 UL1077 |
UL489 |
CCC |
