Product Introduction
Built on the proven modular-steel C-frame, our MNS LV drawer-type switchgear offers 1/4-, 1/2-, 1- and 2-tier withdrawable units rated 63 A – 630 A that can be removed or swapped under energized busbars-no shutdown-cutting plant downtime to near zero. Internal segregation up to Form 4 Type 7 with IP42-IP54 doors and arc-proof flaps withstands 100 kA / 1 s fault level and 85 kA internal arc for 0.5 s (IEC 61439-1&2, IEEE C37.20.1), protecting both operators and upstream transformers.
Smart accessories include motor-operated racking, shutter position sensors and an embedded IEC 61850 Ethernet gateway that streams temperature, current and breaker status to SCADA or cloud, enabling predictive maintenance and 15 % energy savings through load-balancing algorithms.
Copper busbars are tin-plated and sleeved in Class-F epoxy, limiting temperature rise to 50 K at 6 300 A while keeping impedance < 0.25 mΩ; top or bottom cable entry and reversible door hinges allow side-by-side or back-to-back mounting in only 600 mm depth, freeing 25 % floor space versus fixed-type panels.
Panels ship fully wired and FAT-tested; lifting eyes and knock-down side plates let a two-man team install a 24-way section in under two hours. Standard finish is RAL 7035 epoxy-polyester, marine-grade C5-M optional. MNS is GL, DNV, CE and ISO 9001 approved, seismic-qualified to 0.4 g, altitude 4 000 m, and ready for energization 24 hours after delivery.
Technical Data
|
Rated Working Frequency(Hz) |
50 |
|
|
Rated Working Voltage(V) |
380 |
|
|
Rated Insulation Voltage(V) |
660 |
|
|
Rated Impulse Withstand Voltage(kV) |
6 |
|
|
Over-voltage Degree |
/ |
|
|
Pollution Degree |
Ⅲ |
|
|
Max.Working Current(A) |
Horizontal Busbar |
6300 |
|
Vertical Busbar |
1200 |
|
|
Rated short-time withstand Current rms(1s)/Peak(kA) |
Horizontal Busbar |
100/220 |
|
Vertical Busbar |
50-105 |
|
|
Protection Degree |
IP30, IP40, IP54 |
|
|
Outline Dimensions(H*W*D) |
2200 ×600(800, 1000)×600(800, 1000) |
|
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