XL-21 550V Distribution Box

Nov 07, 2022

XL-21 low voltage power distribution cabinet

The XL-21 power boxes are widely used in power plants and industrial and mining enterprises in the following three-phase AC 500V three-phase three-wire, three-phase four-wire, three-phase fivelines and distribution systems for power or lighting distribution purposes, the Department of indoor wall installation, front panel operation, maintenance front panel; cabinet is fully enclosed structure, assembled from C profiles or profiles made 8MF. Box using the new rotary load isolation switch, with a load operation, equipped with voltage, current indication instruments and lights, buttons, switches, etc. on the front door so that the main element. The distribution box using the new self-designed components, compact, elegant design, easy maintenance, a variety of wiring schemes to choose from

Working environment conditions:

*Ambient air temperature: -15°C-+40°C;

*Relative humidity: Daily average ≤ 95%,and daily average of water vapor pressure < 2.2kPa;

Monthly average ≤ 90%,and monthly average of water vapor pressure < 1.8kPa;

*Altitude: ^ 1000m;

*Seismic intensity: No more than 8 degree

*Ambient air should be free of pollution of corrosive or flammable gas or vapor;

*No obvious vibration;

Main technical parameters
Sequence number	Project Name	Unit	Electrical parameters
1	standards		GB 7251.1-2005
2	The rated voltage insulation Ui	V	690V
3	Rated voltage Ue	V	400V
4	Rated current In	A	630A~100A
5	Short-term tolerance current ability lew	kA	20KA
6	Shell IP protection grade		IP30/IP55/IP65
7	Environment temperature	°C	-20~+40
8	installation		landing
9	Case materials	mm	1.5-2.0 Cold-rolled steel sheet or stainless steel plate
10	Surface treatment		Electrostatic spraying technology
11	Open the direction		The opening Angle is equal or greater than 135 °

XL-21 (2)

XL-21 (3)

XL-21 (4)

XL-21 550V Distribution Box

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