Durable Residual Current 4-Pole Circuit Breaker

1. When installing the 4P Leakage Miniature Circuit Breaker, it is necessary to follow the installation specifications, leaving at least 5mm of space on the left and right sides, and more than 10mm at the top and bottom to avoid excessive temperature rise due to poor heat dissipation. 2. The 4P Leakage Miniature Circuit Breaker can be installed side by side with other circuit breakers, but it is necessary to ensure good ventilation in the distribution box, especially in the high-temperature envi

1. The neutral wire terminal of the 4P Leakage Miniature Circuit Breaker is usually non-directional, but some models are marked with 'N', which needs to be connected to the neutral wire (must be connected, otherwise the leakage protection will fail). 2. Wiring sequence: The incoming end L1/L2/L3 is connected to the three-phase live wire, and N is connected to the neutral wire; the outgoing end is connected to the load correspondingly. It is strictly forbidden to reverse the live wire and neutral

The leakage circuit breaker works by monitoring the current balance in the circuit. Under normal circumstances, the incoming and outgoing currents are equal. If there is a leakage (such as a person getting an electric shock or equipment insulation damage), the current is unbalanced, and the leakage circuit breaker will detect it and trip quickly to cut off the power supply, thereby protecting the safety of personnel and equipment.

The following parameters should be considered when choosing a leakage circuit breaker: 1. Rated current: Choose according to the circuit load, such as 16A, 20A, etc. 2. Rated leakage action current: Usually 30mA, suitable for home and commercial places. 3. Pole number: single-pole, double-pole, three-pole or four-pole, etc., choose according to the circuit requirements. 4. Breaking capacity: It represents the maximum fault current that the circuit breaker can cut off, commonly 6kA and 10kA.

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