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Intro : The XL-21 low-voltage power distribution cabinet is suitable for power distribution in three-phase four wire or threephase five wire systems with AC voltage of 500 volts or below in power plants and industrial and mining enterprises. The XL- 21 low-voltage power distribution box is an indoor device installed against the wall and requires maintenance in front of the screen.
Operating ambient temperature range: -50℃ to +40℃, with an average temperature not exceeding +36℃ within 24 hours.
Suitable for installation at altitudes not exceeding 2000 meters.
Relative humidity should not exceed 50% at +40℃ ambient temperature.
Higher relative humidity is acceptable at lower temperatures (e.g., 90% at +20℃); moderate frost formation is permissible due to temperature changes.
Installation inclination angle should not exceed 5° from the vertical plane.
The equipment must be installed in environments free from severe vibration, impact, and corrosive conditions.
