● Ambient Air Temperature：-5℃ to +40℃, the average temperature for 24 hours does not exceed +35℃.
● Installation Location：The altitude shall not exceed 2000m.
● Atmospheric Conditions：The relative humidity of the air should not exceed 50% at a maximum temperature of +40℃. At lower temperatures, higher relative humidity is acceptable, such as reaching 90% at 20℃. It is important to consider the condensation on the product surface due to temperature changes.
● Pollution Level：III
● Installation Category：The circuit breaker main circuit and undervoltage release coil are used for installation categoryⅢ. The auxiliary circuits and control circuits are installed in category III.
● MCCB can withstand the effects of humid air, salt spray, oil mist, mold, and nuclear radiation.
● The maximum inclination of MCCB installation is ±22.5°.
● MCCB can operate reliably under earthquake conditions (4g).
● MCCB should be installed in a location that is free from explosion hazards, conductive dust, ametal corrosion and insulation damage.
●MCCB should be installed in a place that is not exposed to rain or snow.
