63A DC MCB DZ47-63DC Solar DC Circuit Breakerr is an essential safety component used in solar power systems to protect against electrical faults, ensuring the system operates efficiently and safely. These devices are specifically designed to handle direct current (DC) circuits, which are commonly used in solar energy systems for transmitting electricity from solar panels to inverters and other components.
Advantages of DC Miniature Circuit Breakers (DC MCBs)
- Efficient arc extinguishing, adaptable to DC arc characteristics
- Precisely matched with the protection curves of DC loads
- Resistant to ripple and reverse current in DC circuits
- Compact size, saving installation space
- Compatible with DC systems in multiple scenarios, featuring strong versatility
- Long service life and high reliability, with low maintenance costs
- They are used in the output circuits of PV string systems to protect the DC lines from PV strings to inverters — preventing overcurrent caused by uneven shading of PV modules or local short circuits, as well as reverse current impact triggered by inverter faults.
- They are applied in the “cell/module branches” of energy storage battery packs and the DC-side circuits of Power Conversion Systems (PCS) — protecting against overcurrent and short circuits during battery charging and discharging, while preventing circuit faults from affecting the entire energy storage cluster.
- They are used in new energy vehicle-related scenarios: the charging circuits of electric bicycles/mopeds, the on-board DC power distribution systems of low-speed electric vehicles, and the internal DC branches of charging piles (e.g., protection for the output branches of DC charging piles), to prevent battery or line damage caused by overcurrent during charging.
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| DZ47 Series Circuit Breaker | | DZ47-63DC | | | |
| Frame Degree Rated Current | | 63A | | | |
| Pole | | 1P,2P,3P,4P | | | |
| Rated Operating Voltage(VDC) | | 12V,24V,48V,300V,600V,900V,1200V | | | |
| Rated Current In (A) | | 10A,16A, 20A,25A,32A,40A, 50A, 63A | | | |
| Rated Insulation Voltage Ui (VDC) | | 1250VDC | | | |
| Rated Impact Voltage Uimp (kV) | Rated Impact Voltage Uimp (kV) | 6 | | | |
| Ultimate Breaking Capacity Icu (kA) | | 6 | | | |
| Run Breaking Capacity Ics (%Icu) | | 100 | | | |
| Curve Type | | C | | | |
| Trip Type | | Thermal-magnetic | | | |
| Mechanical | Actual average value | 20000 times | | | |
| Standard value | 8500 times | | | |
| Electrical | Actual average value | 2500 times | | | |
| Standard value | 1500 times | | | |
| Wiring Capacity(mm²) | Actual average value | In≤32A,1.5-6mm²; In≥40A,10~16mm² | | | |
| Ambient Temperature(℃) | | -20℃~+70℃ | | | |
| Altitude | | ≤2000m | Actual average value | Actual average value | Actual average value |
| Relative Humidity | | ≤9.5% | | | |
| Pollution Level | | 2,3 | | | |
| Installation Environment | | No obvious shock and vibration | | | |
| Installation Category | | Class II, Class III | | | |
| Installation | | Standard din rail | | | |
| Dimensions (W)*(H)*(D) (mm) | W | 18 | 36 | 54 | 72 |
| H | 98 | 98 | 98 | 98 |
| D | 71 | 71 | 71 | 71 |
| Weight (KG) | | 0.12 | 0.24 | 0.26 | 0.48 |
If you would like to learn more about our DC miniature circuit breakers, please feel free to contact us and we will provide you with detailed answers.
