XL-21 power distribution box is suitable for ac 50 (60) HZ, voltage to 690V, power supply system, for power or lighting power distribution, suitable for industrial and mining enterprises and various civil buildings, with overload, short circuit and leakage protection. This product meets the standard of GB 7251.1 Low Pressure Complete Switchgear and Control Equipment.
Technical data
Rated operating voltage: 380V (690V)
Rated operating voltage: 50 HZ (60 HZ)
The maximum rated working current is 630A
Rated short time (1S) tolerance current 30 KA
Rated peak tolerance current of 63 KA
Protection grade IP20, P30, IP40, IP54
Usage Environment
The ambient temperature is not higher than +40℃ and not lower than -5℃, and the average temperature within 24 hours is not higher than +300℃.
The relative humidity of the ambient air is not higher than 50% at +40℃. At lower temperatures, the relative humidity can be higher, but the condensation caused by temperature changes should be taken into account (For example, 90% at +200℃).
The equipment should be installed in a place without severe vibration and impact, and in a place where the electrical components are not corroded
The inclination of the equipment installation to the ground should not exceed 5 degrees
If the user has special requirements, they can negotiate with the manufacturer to solve.
Our capacitor compensation cabinets with harmonic filtering, reducing energy costs by 15-30%. UL/CE certified for grids, mining, and heavy machinery.
