K-BLOCK Drawout-type control and distribution board
Description
Low-voltage package systems of K-BLOCK series are used to receive and distribute three-phase AC, 50 Hz, 0.4 kV and 0.69 kV electrical power in dead-earthed or insulated neutral, electrical equipment control and fault current / overload protection systems.
A K-BLOCK LV package is used as part of power supply, control and automation systems as distribution switchboards, power distribution stations, control and automation panels and cabinets. K-BLOCK LV packages are also suitable as low-voltage distribution switchgears in integrated transformer substations.
P.O. Details
P.O. Details
A draw-out distribution and control board is fabricated based on data sheets and specifications.
General Characteristics
|
Cable entry |
Top/bottom |
|
Pillar maintenance |
One-side/two-side access |
|
IP (protection against ingress of solids and liquids) |
max. 54 |
|
IK (protection against mechanical impacts) |
max. 10 |
|
Form of separation |
4b |
Pillar size
|
Height, mm |
2200/2350 (including a 100 mm base) |
|
Width, mm |
325/650/1000/1550 |
|
Depth, mm |
500/600/800/900/1000/1100/1200/1300/1400 |
|
Average weight, kg |
650 |
|
Enclosure & case parts |
Zinc galvanized steel, polymerized epoxy-polyester powder coating (SP03); >50 μm |
|
Enclosure colour |
As specified by Customer |
Electrical Perfomance
|
Rated insulation voltage (Ui), V |
1000 |
|
Rated operating voltage (Ue), V |
690/400 |
|
Rated frequency (F), Hz |
50 |
|
Rated impulse voltage (Uimp), kV |
12/24/48/230 |
|
Rated secondary voltage, V |
<230 or as specified by Customer |
|
Overvoltage category |
IV |
|
Degree of pollution |
3 |
|
Current rating of horizontal main busbars (In), А |
7300 max. |
|
Current rating of main busbars in CB sections, А |
6300 max. |
|
Current rating of vertical distribution busbars, А |
6300; 4000; 2100; 1500 |
|
Rated short-time withstand current (Icw), 1 sec, horizontal main busbars (rated peak value current Ipk) |
50/80/100/150 kA rms value (110/176/220/330 kA) |
|
Rated short-time withstand current (Icw), 1 sec, vertical distribution busbars (rated peak value current Ipk) |
50/80/100 kA rms value (110/176/220/330 kA) |
|
Rated conditional short-circuit current (Icc), kA |
150 max. |
|
IEC internal arc protection (100 kA, rms value), sec |
0,3 |
|
Earthing diagram |
TT, IT, TNS,TNC, TN-C-S |
|
Certificate |
Meets CU TR 004/2011, CU TR 020/2011, # ЕАЭС RU C-RU.МЮ62.В.01286/19 |
Flexibility of design and technical solutions
The modular structure of the K-BLOCK series LV package allowing for multiple pillar designs and protection and switching device configurations makes it easy and convenient to tailor the product to any applications.
Max power distribution capacity
The maximum 7,300 A current in main distribution busbars ensures 0.4/0.69 kV power supply to most power-consuming systems.