XL21 control cabinet is the final equipment of the power distribution system.Assembly switchgear, measuring instrument, protective equipment and auxiliary equipment in closed or semi-closed metal cabinet or screen frame according to the electrical wiring requirements, forming a low-voltage distribution device.During normal operation, the circuit can be switched on or disconnected by a manual or automatic switch.Cut off the circuit or alarm with the protection appliance during the fault or abnormal operation.The measuring instrument can display various parameters in operation, and can also adjust some electrical parameters to prompt or signal the deviation from the normal operating state.Commonly used in each generation, distribution and substation.
(1) The installation height shall not exceed 1,000 meters above sea level;
(2) The surrounding medium temperature shall not be higher than + 40℃ and not less than-20℃;
(3) The relative air humidity shall not exceed 85%;
(4) There is no conductive dust and gas places enough to corrode metal and destroy insulation;
(5) Places with no danger of explosion;
(6) There is no violent vibration and turbulence, and the vertical inclination is not more than 5° of the place;
(7) After the treatment required by the humid heat belt, the power box can be applied to the areas where the air relative humidity does not exceed 95%, and condensation and mold exist.
XL-21 series low-voltage power distribution cabinet is suitable for power distribution and lighting distribution with AC frequency of 50HZ, voltage of 500V and below, and three-phase four power system in industrial and civil buildings.At the same time, it is suitable for making a variety of motor start cabinets, including full pressure direct start cabinet, full digital control soft start cabinet, self-coupling step-down start cabinet, star triangle start cabinet, multi-speed motor start cabinet, etc.With dozens of primary line scheme number or derivative program number for selective use, a wide range of application.
This product is an indoor closed power distribution box.The box is made of thin steel plate bent and welded, the front is a single left door, the door is equipped with voltmeter, ammeter and other measuring instruments and operating electrical appliances, signal electrical appliances, etc., is a simple structure, reliable operation, low cost of power distribution device.
Rated working voltage (Ue) | 380V |
Rated insulation voltage (Ui) | 660V |
Auxiliary circuit insulation voltage (Ui) | 380V |
Rated impulse withstand voltage (Uimp) | 6kV |
Rated frequency (fn) | 50Hz |
Rated current (InA) | 400A~100A |
Rated short-time withstand current (Icw) | 10kA |
Rated peak withstand current (Icw) | 17kA |
Rated total capacity (Qc) | 420kvar~60kvar |
Enclosure rating | IP30 |
Compensation phase number | Combination of three-phase compensation and single compensation |
Indoor type (outdoor type) | Indoor type |
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XL21 control cabinet is the final equipment of the power distribution system.Assembly switchgear, measuring instrument, protective equipment and auxiliary equipment in closed or semi-closed metal cabinet or screen frame according to the electrical wiring requirements, forming a low-voltage distribution device.
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