- It is mainly used in electrical wiring of modern buildings and overload, short circuit protection of equipment.

| Model | HKD-4A |
| Residual Current Circuit Breaker Parameters | |
| Pole | 1P+N |
| Rated Current | 20A |
| Rated Voltage Ue | AC230V or AC400V |
| Insulation Voltage Ui | 500V |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 2kV |
| Rated Breaking Capacity (Ics) | 4.5kA |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 1kV |
| AC Circuit Breaker Parameters | |
| Pole | 2*1P(10A) | 1*1P(16A) |
| Rated Voltage Ue | AC200-400V |
| Insulation Voltage Ui | 500V |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 6kV |
| Rated Breaking Capacity (Ics) | 4kA |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV |
| Box Parameters | |
| Box Material | Flame Retardant, PC+ABS Plastic, UV-Proof |
| Operating Temperature | -25°C~+55°C |
| Altitude | 2000 Meter |
| Allowable Relative Humidity | 0~95%, no condensation |
| Box Size(MM) | 107*202*100 |

| Model | HKD-4B | |
| Residual Current Circuit Breaker Parameters | ||
| Pole | 2P+PE (L N PE) | |
| Rated Current | 10A,16A,20A,25A,32A,40A,50A,63A | |
| Rated Voltage Ue | 120V/240V AC | |
| Insulation Voltage Ui | 500V | |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 4kV | |
| Rated Breaking Capacity (Ics) | 6kA | |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV | |
| Residual leakage tripping current | 30mA/300mA | |
| Thermo-Magnetic Release Characteristic | C-Curve (5-10In),D-Curve (10-14In) | |
| Lightning Protection Parameters | The maximum flow Imax (kA) | 15 |
| Nominal flux In (kA) | 10 | |
| Response time t (ns) | <25 | |
| The ground terminal links the stranded copper conductors | 6mm² | |
| Box Parameters | ||
| Box Material | Flame Retardant, PC+ABS Plastic, UV-Proof | |
| Operating Temperature | -25°C~+55°C | |
| Altitude | 2000 Meter | |
| Allowable Relative Humidity | 0~95%, no condensation | |
| Box Size(MM) | 107*202*100 | |

| Model | HKD-6A |
| Residual Current Circuit Breaker Parameters | |
| Pole | 1P+N |
| Rated Current | 25A |
| Rated Voltage Ue | AC230V or AC400V |
| Insulation Voltage Ui | 500V |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 2kV |
| Rated Breaking Capacity (Ics) | 4.5kA |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 1kV |
| AC Circuit Breaker Parameters | |
| Pole | 1*1P(6A) | 2*1P(10A) | 1*1P(16A) |
| Rated Voltage Ue | AC200-400V |
| Insulation Voltage Ui | 500V |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 6kV |
| Rated Breaking Capacity (Ics) | 4kA |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV |
| Box Parameters | |
| Box Material | Flame Retardant, PC+ABS Plastic, UV-Proof |
| Operating Temperature | -25°C~+55°C |
| Altitude | 2000 Meter |
| Allowable Relative Humidity | 0~95%, no condensation |
| Box Size(MM) | 165*200*100 |

| Model | HKD-6B | |
| Residual Current Circuit Breaker Parameters | ||
| Pole | 2P+PE (L N PE) | |
| Rated Current | 20A | |
| Rated Voltage Ue | 120V/240V AC | |
| Insulation Voltage Ui | 500V | |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 4kV | |
| Rated Breaking Capacity (Ics) | 6kA | |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV | |
| Residual leakage tripping current | 30mA/300mA | |
| Thermo-Magnetic Release Characteristic | C-Curve (5-10In),D-Curve (10-14In) | |
| Lightning Protection Parameters | The maximum flow Imax (kA) | 15 |
| Nominal flux In (kA) | 10 | |
| Response time t (ns) | <25 | |
| The ground terminal links the stranded copper conductors | 6mm² | |
| AC Circuit Breaker Parameters | ||
| Pole | 1*1P(10A) | 1*1P(16A) | |
| Rated Voltage Ue | AC90V-125V AC200-400V | |
| Insulation Voltage Ui | 500V | |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 6kV | |
| Rated Breaking Capacity (Ics) | 4kA | |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV | |
| Box Parameters | ||
| Box Material | Flame Retardant, PC+ABS Plastic, UV-Proof | |
| Operating Temperature | -25°C~+55°C | |
| Altitude | 2000 Meter | |
| Allowable Relative Humidity | 0~95%, no condensation | |
| Box Size(MM) | 165*200*100 | |

| Model | HKD-9A |
| Residual Current Circuit Breaker Parameters | |
| Pole | 1P+N |
| Rated Current | 40A |
| Rated Voltage Ue | 110V / 220V AC |
| Insulation Voltage Ui | 500V |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 4kV |
| Rated Breaking Capacity (Ics) | 4.5kA |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV |
| AC Circuit Breaker Parameters | |
| Pole | 2*1P(10A) | 2*1P(16A) | 1*1P(20A) |
| Rated Voltage Ue | AC90V-125V AC200-400V |
| Insulation Voltage Ui | 500V |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 6kV |
| Rated Breaking Capacity (Ics) | 4kA |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV |
| Meter Circuit Breaker Parameters | |
| Meter Voltage | 220V / 110V |
| Meter Current | Maximum Current 80A |
| Meter Display | LCD Display (Voltage Current Power) |
| Meter Insulating Property | 1min 4KV Alternating Voltage, 1.2/50us 6KV Waveform Impulse Voltage |
| Power | 0.1-17000W |
| Box Parameters | |
| Box Material | Flame Retardant, PC+ABS Plastic, UV-Proof |
| Operating Temperature | -25°C~+55°C |
| Altitude | 2000 Meter |
| Allowable Relative Humidity | 0~95%, no condensation |
| Box Size(MM) | 165*200*100 |

| Model | HKD-9B | |
| Residual Current Circuit Breaker Parameters | ||
| Pole | 2P+PE (L N PE) | |
| Rated Current | 32A | |
| Rated Voltage Ue | 120V/240V AC | |
| Insulation Voltage Ui | 500V | |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 4kV | |
| Rated Breaking Capacity (Ics) | 6kA | |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV | |
| Lightning Protection Parameters | The maximum flow Imax (kA) | 15 |
| Nominal flux In (kA) | 10 | |
| Response time t (ns) | <25 | |
| The ground terminal links the stranded copper conductors | 6mm² | |
| AC Circuit Breaker Parameters | ||
| Pole | 2*1P(10A) | 1*1P(16A) | |
| Rated Voltage Ue | AC90V-125V AC200-400V | |
| Insulation Voltage Ui | 500V | |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 6kV | |
| Rated Breaking Capacity (Ics) | 4kA | |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV | |
| Meter Circuit Breaker Parameters | ||
| Meter Voltage | 220V / 110V | |
| Meter Current | Maximum Current 80A | |
| Meter Display | LCD Display (Voltage Current Power) | |
| Meter Insulating Property | 1min 4KV Alternating Voltage, 1.2/50us 6KV Waveform Impulse Voltage | |
| Power | 0.1-17000W | |
| Box Parameters | ||
| Box Material | Flame Retardant, PC+ABS Plastic, UV-Proof | |
| Operating Temperature | -25°C~+55°C | |
| Altitude | 2000 Meter | |
| Allowable Relative Humidity | 0~95%, no condensation | |
| Box Size(MM) | 107*202*100 | |

| Model | HKD-12A |
| Residual Current Circuit Breaker Parameters | |
| Pole | 1P+N |
| Rated Current | 40A |
| Rated Voltage Ue | 110V / 220V AC |
| Insulation Voltage Ui | 500V |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 4kV |
| Rated Breaking Capacity (Ics) | 4.5kA |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV |
| AC Circuit Breaker Parameters | |
| Pole | 2*1P(10A) | 3*1P(16A) | 1*1P(20A) | 1*2P(25A) |
| Rated Voltage Ue | AC90V-125V AC200-400V |
| Insulation Voltage Ui | 500V |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 6kV |
| Rated Breaking Capacity (Ics) | 4kA |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV |
| Meter Circuit Breaker Parameters | |
| Meter Voltage | 220V / 110V |
| Meter Current | Maximum Current 80A |
| Meter Display | LCD Display (Voltage Current Power) |
| Meter Insulating Property | 1min 4KV Alternating Voltage, 1.2/50us 6KV Waveform Impulse Voltage |
| Power | 0.1-17000W |
| Box Parameters | |
| Box Material | Flame Retardant, PC+ABS Plastic, UV-Proof |
| Operating Temperature | -25°C~+55°C |
| Altitude | 2000 Meter |
| Allowable Relative Humidity | 0~95%, no condensation |
| Box Size(MM) | 273*230*110 |

| Model | HKD-12B | |
| Residual Current Circuit Breaker Parameters | ||
| Pole | 2P+PE (L N PE) | |
| Rated Current | 32A | |
| Rated Voltage Ue | 120V/240V AC | |
| Insulation Voltage Ui | 500V | |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 4kV | |
| Rated Breaking Capacity (Ics) | 6kA | |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV | |
| Lightning Protection Parameters | The maximum flow Imax (kA) | 15 |
| Nominal flux In (kA) | 10 | |
| Response time t (ns) | <25 | |
| The ground terminal links the stranded copper conductors | 6mm² | |
| AC Circuit Breaker Parameters | ||
| Pole | 2*1P(10A) | 3*1P(16A) | 1*1P(20A) | |
| Rated Voltage Ue | AC90V-125V AC200-400V | |
| Insulation Voltage Ui | 500V | |
| Rated Impulse Withstand Voltage (1.2/50) Uimp | 6kV | |
| Rated Breaking Capacity (Ics) | 4kA | |
| Dielectric Test Voltage At And Ind. Freq. For 1min | 2kV | |
| Meter Circuit Breaker Parameters | ||
| Meter Voltage | 220V / 110V | |
| Meter Current | Maximum Current 80A | |
| Meter Display | LCD Display (Voltage Current Power) | |
| Meter Insulating Property | 1min 4KV Alternating Voltage, 1.2/50us 6KV Waveform Impulse Voltage | |
| Power | 0.1-17000W | |
| Box Parameters | ||
| Box Material | Flame Retardant, PC+ABS Plastic, UV-Proof | |
| Operating Temperature | -25°C~+55°C | |
| Altitude | 2000 Meter | |
| Allowable Relative Humidity | 0~95%, no condensation | |
| Box Size(MM) | 273*230*110 | |