Summary

X L (F) -21 series power distribution cabinet application system in the power plants and factories, the AC voltage 550V and below the three-phase three wire three-phase four wire, three-phase four wire, three-phase five wire. Widely used in industrial and mining enterprises, metallurgical chemical, bank guesthouse, stations, terminals, rail transportation and other indoor and outdoor power distribution lighting use. If used for outdoor. Please consult with equipment manufacturers to solve.

 

Model and meaning

Conditions of use

* environment temperature: -5 ~+40 DEG C, and the average temperature in 24h is less than +35 DEG C.

Altitude: not more than 2000m.

9:28 relative temperature: when the ambient air temperature is 40 DEG C does not exceed 50%: in low temperature can have a higher relative humidity (such as: + 20 DEG C to 90%), taking into account the changes in temperature

Allow moderate.

This equipment installation inclination of the vertical plane should not exceed 5 degrees. The equipment should be installed in the absence of severe vibration, shock and corrosion free place.

* the switchgear main circuit scheme of a total of 105. But not because of the change of the control and protection of the auxiliary circuit and derivative programs and specifications.

product mix

 

    XL (F) -21 type low voltage power distribution cabinet, indoor wall or wall installation. The distribution device can be made into a single door or double doors. The basic structure of the steel plate bending and welded steel. The front door can be provided with a knife switch operation handle. As the power is cut off and connected with the operation of the box, the door can be provided with an operation button, indicator light and display instrument, to open the door. Distribution box all the facilities open for maintenance and repair, the distribution box is provided with an air circuit breaker, fuse as a short circuit protection. Can also be fitted with a contactor and a thermal relay. For motor frequent start, under voltage, overload protection function. If equipped with the corresponding electrical components, then play the motor grounding protection function.

The door and the shell are welded with the grounding screw to ensure the reliability of the casing and the ground connection.