Suitable range
The rated working voltage of DNB1Z-63 mini DC circuit breaker can be up to DC 250V ( 1P ) ,DC800V (2P),DC800V ( 3P ) , DC1200V ( 4P ) , There is a special arc extinguishing and current limiting system in the MCB,which can quickly disconnect the fault current of the,DC distribution system .
It can protect important components in the solar power generation system , ensures the operation of the solar photovoltaic power generation system is reliable.
Usage environment
The altitude is lower than 2000 meters . Can be if altitude higher than 2000m .Please contact the manufacturer for other special requirements.
The ambient temperature is -25℃ , and the 24-hour average temperature does not exceed + 35 ℃ ; When the ambient temperature is higher than + 40 ℃ or lower than-25 ℃ , please contact the manufacturer.
The product shall be installed in the waterproof distribution box. DC circuit breaker
Model and Meaning
Technical Parameter
| Entry Name | Technical Parameter |
| Rated insulation voltage ( UI ) | 1250V |
| Rated operating voltage ( UE ) | DC ( IP ) : 15V , 60V , 100V , 180V , 250V ; DC ( 2P ) : 125V , 375V, 550V ,600V , 800V DC(3P) : 750V , 800V ; DC ( 4P ) : 800V ,1000V, 1200V |
| Rated current of frame | 63A |
| Different currents of the same shell frame | 6A,10A,16A,20A,25A,32A,40A,50A,63A |
| Rated operating short-circuit breaking capacity ( ICS = ICU ) | 6KA |
| Rated operating short-circuit breaking capacity ( ICS = ICU ) | 2P 800V \ 4p 1200V 2KA |
| Mechanical life | 20000second |
| Electrical life | 10000second ( Belowdc125V/ 1P , Below DC250V / 2P ) ,1000second ( Other voltage specifications ) |
| Certificate | CB CE CCC |
| Rated impulse withstand voltage Uimp | 6KA |
| Tripping characteristics / tripping type | B / C ; Thermal porcelain |
| Overvoltage level | Ⅲ |
| class of pollution | 3 |
| Protection grade | IP40 ; Connection port IP20 |
| Damp heat resistance | Class 2 |
| Relative humidity | ≤95% |
| Standard | IEC 60947-2 GB / T 14048.2 |
| Seismic resistance | Basis IEC 60068-2-6 |
| Mechanical shock resistance parameters | Basis LEC 60068-2-27 |
| Operating ambient temperature | -30℃~70℃ |
| Damp heat resistance | Db Class ( Temperature 55℃ 6 Cycle ) |
| Storage environment temperature | -30℃~70℃ |
| Altitude | ≤2000m |
| Weight | 0.12kg/p |
| enclosure | OF / SD / MX / MN / MX + OF |
| MX control voltage Us | DC : 12V , 24V ,220V ; AC : 110V , 220V , 380V It is recommended that the power supply should not be lower than 75W |
| Mn rated voltage UN | AC220V AC380V |
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