I. Overview

XL-21 power distribution cabinet is widely used in power plants and industrial and mining enterprises. It is used for power or lighting distribution in three-phase three wire, three-phase four wire, three-phase five wire and other distribution systems with AC voltage below 500V. It is installed indoors against the wall, operated in front of the screen, and maintained in front of the screen; The box is a fully enclosed structure, assembled from C or 8MF profiles. The box adopts a new type of rotary load isolation switch, which can be operated with load. The front door is equipped with voltage and current indicator instruments, as well as main control components such as signal lights, buttons, and conversion switches. This distribution box adopts newly designed components, which are compact in structure, aesthetically pleasing in appearance, and easy to maintain. Multiple wiring schemes are available for users to choose from.

II. Terms of Use

-- Environmental temperature: -5 ℃ -+40 ℃, and the average temperature within 24 hours does not exceed+35 ℃.

-- Altitude: not exceeding 2000m.

-- Relative humidity: not exceeding 50% when the ambient air temperature is+40 ℃; At lower temperatures, there can be higher relative humidity (e.g. 90% at+20 ℃), allowing for moderate condensation due to temperature changes.

-- The inclination angle between the equipment and the vertical plane during installation should not exceed 5 °.

-- The equipment should be installed in a place without severe vibration, impact, and corrosion.