Description
Description of DZ47LE-63 Series Small Leakage Circuit Breaker
The DZ47LE-63 Series Small Leakage Circuit Breaker is a compact, high-reliability electrical protection device tailored for low-voltage AC power systems. Specifically engineered to operate at 50Hz or 60Hz frequency, it supports a rated voltage of 400V for three-phase applications and 230V for single-phase circuits, with a rated current range from 3A to 63A—covering the power needs of most small to medium-sized electrical setups. Beyond core protection against leakage, overload, and short circuits, it can be customized with an overvoltage protection function based on user requirements, forming a comprehensive safety barrier for both personal safety and equipment integrity.
It effectively prevents accidents caused by leakage currents, safeguards lines from overload and short-circuit damage, and serves as an infrequent switching device for normal circuit operation. Notably, models with a rated residual operating current of 30mA provide direct protection against electric shock, making it a pivotal component in low-voltage electrical safety systems.
Parameter of DZ47LE-63 Series Small Leakage Circuit Breaker
| model | rated current(A) | number of poles | rated operational voltage(KV) | frequency(Hz) | rated short circuit breaking capacity (KA) | rated surplus action current (mA) | Trip type |
| DZ47LE | 1,2,3, 6,10,16, 20,25,32, 40,50,63 | 1P+N | 230 | 50/60 | 6 | 30 | C |
| 2P | |||||||
| 3P | 400 | ||||||
| 3P+N | D | ||||||
| 4P |
Note: Rated residual current 50mA. Custom orders available.
Remaining action: current interruption time
| In(A) | I△n(A) | The tripping time is when the residual current equals the following value | ||||
| I△n | 2I△n | 51△n | I△t | |||
| 6-63 | 0.03 | 0.3 | 0.15 | 0.04 | 0.04 | maximum fragmentation time |
Application of DZ47LE-63 Series Small Leakage Circuit Breaker
The DZ47LE-63 Series Small Leakage Circuit Breaker is widely utilized in residential, commercial, and light industrial low-voltage AC circuits, thanks to its compact size and multi-functional protection capabilities. In residential settings, it is ideal for household distribution boxes, protecting sockets, lighting circuits, and household appliances from leakage, overload, and short-circuit faults—effectively preventing electric shock risks for residents.
In commercial spaces such as offices, retail stores, and hotels, it safeguards public electrical facilities and equipment, ensuring uninterrupted daily operations. For light industrial environments, including small workshops and equipment rooms, it protects low-power production equipment and distribution lines, reducing downtime caused by electrical faults. Additionally, it is suitable for temporary power supply circuits and small-scale electrical installations, where reliable personal and equipment protection is essential, and can be integrated into various low-voltage power distribution systems as a cost-effective safety solution.
