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XL-21 cabinet

Product name: XL-21 cabinet Detailed description: XL (F) -21 series power distribution cabinet is suitable for power plants and industrial and mining enterprises, three-phase three-wire, three-phase four-wire, three-phase four-wire, three-phase four-wire, three…

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Product Details

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Technical Parameter

Product name: XL-21 cabinet


Detailed description:


XL (F) -21 series power distribution cabinets are suitable for power plants and industrial and mining enterprises, three-phase three-wire, three-phase four-wire, three-phase four-wire, three-phase five-wire systems with AC voltage of 550V and below, and are widely used in industrial and mining For indoor and outdoor power lighting and power distribution in enterprises, metallurgical and chemical industries, hotels, banks, stations and wharfs, rail transit, etc. If it is used outdoors, please negotiate with the equipment manufacturer.


Model meaning

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Use environmental conditions


1. Ambient temperature: -5℃+40℃, and the average temperature within 24h does not exceed +35℃.


2. Altitude: no more than 2000m.


3. Relative temperature: no more than 50% when the ambient air temperature is +40℃;


At a lower temperature, there can be a higher relative temperature (for example, 90%), taking into account the temperature change allows moderate condensation.


4. When the equipment is installed, the inclination of the vertical plane should not exceed 5°C. The equipment should be installed in a place without severe vibration, impact and corrosion.


Main technical parameters (see Table 1)

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Main circuit scheme


There are a total of 105 main circuit schemes for the closed cabinet, but excluding the derivative schemes and specifications due to changes in auxiliary circuit control and protection


product structure


XL(F)-21 low-voltage power distribution cabinet is installed indoors against the wall or not against the wall. It can be made into a single-door or double-door power distribution installation. Its basic structure is made of steel plate bending and angle steel welding. , The front door can be equipped with a knife and close operating handle, which can be used to cut off and turn on the power. The box door can be equipped with operating buttons, indicator lights and display instruments. Open the cabinet door, and all the equipment inside the distribution box is exposed. It is convenient for maintenance and repair. The distribution box is equipped with air circuit breakers. In addition to short-circuit protection, the fuse can also be equipped with contactors and thermal relays for frequent motor starting, undervoltage, and overload protection. If equipped with corresponding electrical components, Play the motor grounding protection function.


Both the door and the shell are welded with grounding screws to ensure a reliable connection between the shell and the ground.

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Online consultation

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