Working environment conditions:

1.1 Ambient air temperature: -5℃ ~ +40℃; the mean temperature within 24h does not exceed +35℃; please contact the manufacturer when the ambient air temperature exceeds +40℃ or below -5℃;

1.2 Installation altitude: ≤2,000 meters;

1.3 The relative air humidity does not exceed 50% at the maximum temperature +40℃, and a higher relative humidity is allowed at a low temperature; the mean temperature does not exceed +25℃ in the wettest month, and the maximum mean relative humidity of that month does not exceed 90%. Necessary measures are taken for condensation occurred occasionally due to temperature changes;

1.4 Installed in places whether there is no impact vibration or rain and snow invasion;

1.5 Installed in places whether there is no explosive or hazardous medium, and there is no enough gas or conductive dust to cause corrosion to the metal or damage to the insulation;

1.6 1, 3, 5, and LINE are connected to the power side; 2, 4, 6, LOAD are connected to the load side; the circuit breaker can be installed vertically (vertical installation), and can be installed horizontally (lateral installation); reverse connection is prohibited;

1.7 Pollution degree: 3;

1.8 The installation category of main circuit is III, and of the auxiliary circuit and control circuit not connected to main circuit is II;

1.9 The external magnetic field near the circuit breaker installation site shall not exceed 5 times earth’s magnetic field in any direction;

1.10 Please handle the product with care, do not put it upside down and avoid severe collision during transport.