Low-voltage modular and draw-out design switchgear
voltage 380V
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Description
Low-voltage modular and draw-out design switchgear (hereafter referred to as NKU MV) are designed for protection of electric circuits against short-circuit currents of 380 VAC, 50 Hz switchgear (switch boards) with solidearthed neutral used for receipt and distribution of electric power, protection against overloads and short-circuit currents.
NKU MV can be used in the following systems:
- 0.4 kV switchgear;
- electric equipment control and protection;
- control, automation and protection of electric power generation and distribution processes.
Due to draw-out design of the cabinets, high level or personnel safety is ensured.
OVERALL DIMENSIONS OF NKU
| A | B | H | |
|---|---|---|---|
| Gabarit 1 | 1000 | 670 | 2200 |
Specifications
| Rated voltage, kV | 0,4 (0,69) |
| Rated current of power collecting buses | 100, 160, 250, 400, 630, 1000, 1600, 2500 |
| Resistance of collecting buses to maximum short-circuit current values, kA | 50 |
| Rated voltage of protection, control and alarm circuit, V: | 220 |
| Weight**, kg | up to 600 |
** Overall dimensions and weight may be changed without change of specifications
Symbol structure
NKU MV Low-voltage modular draw-out design switchgear manufactured by Chelyabinsk Electric Equipment Plant LLC
Module function:
- В- lead-in
- А- emergency lead-in
- С- sectionaliztion
- Л- outgoing line
Quantity of outgoing feeders:
- 2-2 feeders
- 3-3 feeders
- 4-4 feeders
- 5-5 feeders
Rated switchgear current, A
У3 (N3) climatic modification and placement category according to GOST 15150