Description
Description of DZ47-63 Series Miniature Circuit Breaker
The DZ47-63 Series Miniature Circuit Breaker is a compact, high-performance low-voltage protection device, engineered with advanced structural design to deliver consistent reliability and exceptional breaking capacity. Crafted from impact-resistant, high-flame-retardant materials for its housing and key components, this breaker effectively prevents fire hazards and structural damage caused by electrical faults, ensuring long-term operational stability.
It is specifically designed for AC power systems with a frequency of 50Hz or 60Hz, supporting a rated working voltage of up to 400V and a rated current range from 6A to 63A. Beyond core overload and short-circuit protection, it serves as a versatile solution for non-frequent circuit breaking and switching in daily operations. Fully compliant with international standard IEC60898 and national standard GB/T10963, the DZ47-63 Series meets stringent quality and safety benchmarks, making it a preferred choice for low-voltage power distribution and protection.
Parameter of DZ47-63 Series Miniature Circuit Breaker
| rated current （A） | number of poles | rated voltage （V） | Trip type | Rated short-circuit breaking capacity (A) |
| 6,10,16,20, | 1P | 230/400 | C | 6000 |
| 25,32,40 | 2P | |||
| 3P | ||||
| 4P | ||||
| D | 4500 | |||
| 50,63 | C | 4500 | ||
| D | 4500 |
Overcurrent tripping characteristic table
| type | test current （A） | rated current （In） | preset-time | expected result | start stare | notes appended to a book |
| C | 1.13In | All values | t≥1h | No tripping | cold position | |
| 1.45In | All values | t<1h | trip | thermal state | The current rises steadily to the specified value within 5 seconds. | |
| D | 2.55In | In≤32A | 1s<t<60s | trip | cold position | |
| In>32A | 1s<t<120s | trip | cold position | |||
| C | 5In | All values | t≥0.1s | No tripping | cold position | The closed auxiliary switch is powered on. |
| 10ln | All values | t<0.1s | trip | cold position | The closed auxiliary switch is powered on. | |
| D | 10ln | All values | t≥0.1s | No tripping | cold position | The closed auxiliary switch is powered on. |
| 14In | All values | t<0.1s | trip | cold position | The closed auxiliary switch is powered on. |
Feature of DZ47-63 Series Miniature Circuit Breaker
The DZ47-63 Series Miniature Circuit Breaker is widely utilized in low-voltage power distribution scenarios, with a primary focus on commercial and residential buildings. It is ideally suited for protecting lighting systems, power distribution lines, and electrical equipment in office buildings, residential complexes, and similar premises, shielding against damage caused by overloads and short circuits.
Additionally, it is applicable to small-scale commercial spaces, retail stores, and light industrial workshops, catering to the protection needs of small to medium-sized electrical loads. In normal operating conditions, it can also function as a non-frequent circuit breaker and switch, facilitating flexible power management for daily maintenance and load adjustment. Its compact size allows for easy integration into distribution boxes and control panels, making it suitable for space-constrained installation environments, whether for new construction or renovation projects.
