The DZ47-125DC DC circuit breaker integrates the functions of “control + protection + arc extinguishing + intelligentization”. During normal operation, it enables flexible switching of circuits; in case of faults, it quickly and reliably cuts off faults. Meanwhile, it solves the problem of DC arc through arc-extinguishing technology and improves system monitoring, operation, and maintenance efficiency with intelligent technologies. Its functions directly determine the safety, reliability, and operational flexibility of DC power systems (such as new energy, energy storage, DC power transmission, and rail transit systems). The picture is 80 Amp DC Circuit Breaker
The ZMB6-125A DC Miniature Circuit Breaker (MCB) has the following features:
- High Rated Current: With a rated current of up to 125A, it can meet the needs of high-current loads and is suitable for high-power scenarios.
- Wide Voltage Range: Applicable to a DC voltage range of 60V to 1200V, enabling stable operation in various DC circuits.
- Strong Breaking Capacity: It has a high rated short-circuit breaking capacity (e.g., up to 10kA for some models), which can quickly cut off high-current faults and effectively protect circuits and equipment.
- Precise Protection Performance: Equipped with a special arc-extinguishing and current-limiting system, it can accurately identify overload and short-circuit faults across the entire current range, achieving rapid protection and preventing the expansion of faults.
- Multiple Pole Configurations: Available in multiple pole options such as 1P, 2P, 3P, and 4P, it can be adapted to different types of DC circuits (e.g., single-phase circuits and three-phase circuits).
- High-Quality Materials and Structure: The shell may be made of high flame-retardant, high-temperature resistant, and impact-resistant materials such as PA66, providing excellent mechanical performance and safety. Some models are also equipped with a transparent cover for easy inspection of the circuit breaker’s status, and products with protection ratings like IP65 offer waterproof and dustproof functions.
- Long Service Life: It has a long mechanical life (generally up to approximately 20,000 operations), and its electrical life also meets practical application requirements, reducing maintenance and replacement costs.
- Compliance with Standards: Compliant with relevant standards such as GB/T 14048.2 and IEC 60947-2, ensuring the reliability of the product’s quality and performance.
This product is widely applied in various scenarios, including industrial, commercial, high-rise buildings, and residential homes
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| DZ47 Series Circuit Breaker | | DZ47-125 | | | |
| Frame Degree Rated Current | | 125A | | | |
| Pole | | 1P,2P,3P,4P | | | |
| Rated Operating Voltage (VDC) | | 12V,24V,48V,250V,500V,750V,1000V | | | |
| Rated Current In (A) | | 80A,100A,125A | | | |
| Rated Insulation Voltage Ui (VDC) | | 1050VDC | | | |
| Rated Impact Voltage Uimp(kV) | | 6 | | | |
| Ultimate Breaking Capacity Icu(kA) | | 6 | | | |
| Run Breaking Capacity Ics(%Icu) | | 100 | | | |
| Curve Type | 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) | | 25~50mm² | | | |
| Ambient Temperature (℃) | | -20℃~+70℃ | | | |
| Altitude | | ≤2000m | | | |
| 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 | 27 | 54 | 81 | 108 |
| H | 80 | 80 | 80 | 80 |
| D | 71 | 71 | 71 | 71 |
| Weight(KG) | | 0.18 | 0.36 | 0.54 | 0.72 |
Overall and installation dimensions (mm)
