The XL-21 low-voltage power distribution cabinet (box) is suitable for use in metallurgical, mining, petroleum, chemical, textile, port, station, and other industrial and mining enterprises. It is used for power distribution and lighting in three-phase three-wire, four-wire, or five-wire low-voltage distribution systems with an AC frequency of 50Hz, a rated voltage of 400V or 660V, and a rated current value of 630A. It can also be used for the control of some squirrel-cage and wound-rotor motors in low-voltage control systems.
This product complies with standards such as IEC60439-1:1992, GB7251·1-2013, GB7251·12-2013, and GB7251·3-2006 "Low-voltage Switchgear and Controlgear Assemblies".