XL-21 power distribution box
1. Model
X----------------------------------------control box
L----------------------------------------power
21---------------------------------------LV switch cabinet.
□---------------------------------------plan No.
2. General
XL-21 LV power distribution cabinet is suitable for the power plant, industrial and mining enterprises, to distribute the power distribution in the AC 500V and below three-phase four-wire or three-phase five-wire system. XL-21 LV power distribution cabinet can be only mounted against the wall in the building. The shell is made of the bending steel plate; the knife switch operation handle is on the top of the right column to transfer the power. There are various kinds of circuit breaker for the users.
3. Technical parameters
|
Item |
Unit |
parameters |
|
Rated working voltage |
V |
AC380、AC660 |
|
Rated frequency |
HZ |
50/60 |
|
Rated short time withstand current (1s) |
KA |
50 |
|
Rated withstand current (peak) |
KA |
105 |
|
Dielectric strength |
V/1min |
2500 |
|
Rated insulation voltage |
V |
660 |
|
Protection degree |
|
IP30/IP40 |
|
External dimension (W*D*H) |
mm |
600(800、1000)*350（400、600）*1600（1800） |
