-
Huatuo groupKeep improving and focus on quality
-
Huatuo groupKeep improving and focus on quality
-
-
MNS low-voltage withdrawable switch cabinet
Product Details
Product overview
This series of low-voltage draw-out switchgear is a modular cabinet type assembled by factory (FBA) with standard modules. The products are used in power plants, substations, petrochemicals, light industry and textiles, metallurgical steel rolling, airports, schools and high-rise buildings and other places as AC 50(60)Hz, rated working voltage 660V and below power systems, as a power, lighting, motor control and distribution of centralized power distribution equipment to receive and use.
This product complies with GB7251 "low-voltage switchgear and control equipment", JB/T9961 "low-voltage draw-out switchgear" national professional standards and in line with IEC439-1 international professional standards.
Model meaning
| M | N | S | □ | □ |
| Modular, Modular | new type | Electrical System | Main circuit scheme code | Auxiliary circuit scheme code |
Working conditions
The ambient air temperature is not higher than 40°C, not lower than -5°C, and the 24-hour average temperature is not higher than 35°C;
The surrounding air is clean, the relative humidity does not exceed 50% at the maximum temperature of +40°C, and a higher relative humidity is allowed at lower temperatures, such as 90% at +25°C, but it should be considered that due to temperature changes May occasionally produce moderate condensation;
Indoor use, at an altitude of not more than 2000m above sea level, where there is no significant shaking and shock vibration;
Pollution level: 3;
Anti-seismic intensity: 8;
The temperature during the transportation and storage of the switch cabinet can range from -25°C to 55°C, and the temperature can reach 70°C in a short time (not exceeding 24h).
Technical parameters
|
Name |
GB7251.1-2013 Low Voltage Switchgear and Control Equipment (TTA) |
|
|
IEC61439 LV Switchgear and Control Equipment |
||
|
Overvoltage category |
IV III |
|
|
Pollution level |
3 |
|
|
Rated operating voltage (Ue)(V) |
400/660 |
|
|
Rated insulation voltage (Ui)(V) |
660/1000 |
|
|
Rated frequency |
(Hz) |
50(60) |
|
horizontal busbar |
Rated current |
<5000A |
|
Rated short-time withstand current (lcw)(kA) |
50,65,80(ls valid value) |
|
|
Rated peak additional current (lpk)(kA) |
105,140,176(0.1s max) |
|
|
Vertical B busbar |
Rated maximum operating current |
<1000A |
|
Rated short-time withstand current |
50kA |
|
|
Rated appeasement withstand current |
105kA |
|
|
Enclosure protection class |
IP30IP40 (special instructions) |
|
Key words:
MNS low-voltage withdrawable switch cabinet
Related Products
