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Product details
1、 Scope of application
DZ47LE-63 series residual current circuit breakerAssembled from DZ47 high breaking miniature circuit breaker and residual current release. This product is suitable for AC 50Hz, rated working voltage 230V~400V, and rated current up to 100A in power lines. It mainly consists of zero sequence current transformers, electronic component boards, residual current circuit breakers, and has overload and short circuit protection functions. It can also be added with overvoltage and undervoltage protection functions according to user needs to provide indirect contact protection for people, as well as overcurrent protection for buildings and similar power lines. It can also provide protection against fires caused by grounding faults that persist due to the malfunction of overcurrent protection devices. Leakage circuit breakers with overvoltage protection can also provide protection against high voltage caused by power grid faults.DZ47LE residual current circuit breakerIn low-voltage distribution systems, it has been increasingly adopted as a backup protection for ground faults and direct and indirect contact electric shocks. This product is mainly used for the protection of building lighting and distribution systems, and meets the requirements of GB16917.1 and IEC61009-1 standards. Our company has passed the national CCC and CE certifications.
2、 Model and specifications
3、 Structural features
The DZ47LE-63 residual current circuit breaker is assembled and integrated from residual current release accessories and DZ47 circuit breaker, thus maintaining the same time current action characteristics as DZ47. Its mechanical assembly can be completed by enterprises in the factory or on site. The leakage release characteristic parameters are set by the factory and cannot be adjusted by the user. The leakage release cannot be disassembled to avoid affecting performance. The residual current release has two levels of shell current: 32A and 50A, which can be connected to 10mm ² and 25mm ² wires respectively.There is a dedicated indicator device on the leakage release to indicate the leakage action. Only after the indicator device is reset,Leakage circuit breakerOnly then can it be closed. It is also equipped with a test device with a self resetting button. When pressed, the internal circuit generates a simulated residual current to break the circuit breaker. The experimental device should be tested regularly, once a month.
4、 Normal working conditions and installation conditions
The ambient air temperature ranges from -5 degrees Celsius to 40 degrees Celsius, with an average of no more than 35 degrees Celsius within 24 hours.◆ Altitude: The altitude of the installation site shall not exceed 2000m.
◆ Atmospheric conditions: The relative humidity of the air at the installation site shall not exceed 50% at a maximum temperature of 40 degrees Celsius, and a relatively high relative humidity is allowed at lower temperatures; For example, reaching 90% at 25 degrees Celsius.
Installation category: Level II and III.
Pollution level: Level 2.
Installation form: TH35-7 steel installation rail is used for installation.
Installation conditions: The external magnetic field of the installation site should not exceed 5 times the geomagnetic field in any direction; Residual current operated circuit breakers should generally be installed vertically, with the handle facing upwards as the power on position; The installation site should have no significant impact or vibration.
◆ Wiring method: Use screws to tighten the wiring.
5、 Main parameters and technical performance
Main specifications:Rated current (ln):
The current rating of the shell frame is 32A, which includes 6A, 10A, 16A, 20A, 25A, and 32A;
The current of the shell level 50A is: 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
◇ Rated residual operating current l △ n: 0.03, 0.05, 0.1, 0.3A
Divided by pole number and current circuit:
a. Single pole two-wire residual current operated circuit breaker;
b. Two pole residual current operated circuit breaker;
c. Three pole residual current operated circuit breaker;
d. Three pole four wire residual current operated circuit breaker;
e. Four pole residual current operated circuit breaker;
◇ Classified by instantaneous release characteristics:
C-type (5-10) ln, D-type (10-16) ln.
Main technical parameters:
Rated voltage Un (V): Single pole two wire, two pole 230V; Three pole, three pole four wire, and four pole are 400V;
◇ Rated short-circuit capacity lcn (A):
4000（C6~C40）;
3000 (C50, C63, D6~D63);
◇ Rated residual connection and disconnection capacity 2000l △ m (A);
◇ Rated residual non operating current l △ no; 0.5l△n；
| Rated voltage Ue (V) | number of poles | Shell level rated current lnm (A) | Rated current (A) | Rated leakage current (mA) | Rated leakage non operating current (mA) | Rated leakage breaking time (s) | Overvoltage protection setting value (V) | Rated short-circuit breaking capacity lcn (A) |
| 230 | 1+N | 32 | 6. 10, 16, 20, 25, 32 | 30 ； fifty | 15 ； twenty-five | ≤0.1 | 280±5% | 6000 |
| 2 | ||||||||
| 400 | 3 | |||||||
| 3+N | ||||||||
| 4 | ||||||||
| 230 | 1+N | 50 | 6. 10, 16, 20, 25, 32, 40, 50, 63 | 30 ； fifty | 15 ； twenty-five | 4500 | ||
| 2 | ||||||||
| 400 | 3 | |||||||
| 3+N | ||||||||
| 4 |
| test current | rated voltage | Set time | Expected results | Initial state | notes |
| 1.13ln | all values | t≥1h | Do not release | cold state | The current steadily rises to the specified value within 5 seconds |
| 1.45ln | all values | t＜1h | trip | Hot state | |
| 2.55ln | all values | 1＜t＜60s | trip | cold state | Close the auxiliary switch and turn on the power supply |
| 5ln | all values | t≥0.1s | Do not release | cold state | Close the auxiliary switch and turn on the power supply |
| 10ln | all values | t＜0.1s | trip | cold state | Close the auxiliary switch and turn on the power supply |
◇ Mechanical and electrical lifespan:
Electrical lifespan: 6000 cycles, COSφ=0.85~0.9；
Mechanical lifespan: 2000 cycles; Ln ≤ 25A 240 times/h; Ln>25A 120 times/h;
◇ Insulation impulse voltage resistance performance
The poles connected together and the neutral pole can withstand a peak impulse voltage of 6000V;
Each pole connected to the neutral pole and the metal bracket can withstand a peak impulse voltage of 8000V.
The residual current operated circuit breaker has the ability to withstand surge overvoltage with a peak current of 200A and a peak voltage of 2.5 √¯ 2Un. It does not cause any misoperation.
The torque of the wiring screw shall not be less than 1.5N · m;
◆ Surrounding air temperature: The maximum temperature of the surrounding air is 40 degrees Celsius, and the minimum temperature is not less than -5 degrees Celsius. The average temperature over 24 hours is not more than+35 degrees Celsius.
| Temperature ℃ | -15 | -5 | 0 | 10 | 20 | 30 | 40 | 55 |
| Rated current correction factor | 1.19 | 1.15 | 1.13 | 1.06 | 1.05 | 1 | 0.96 | 0.89 |
| Rated current ln (A) | Nominal cross-sectional area of copper wire (mm ²) |
| 10 and below | 1.5 |
| 10~20 | 2.5 |
| 20~25 | 4 |
| 25~32 | 6 |
| 32~50 | 10 |
| 50~63 | 16 |
6、 Appearance and installation dimensions
DZ47LE-63
DZ47LE-50 Large Shell Series
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