The MNS low-voltage withdrawable switchgear mainly consists of circuit breakers, AC contactors, thermal overload relays, insulating supports, busbars, and a housing. It is assembled from 2.0mm thick cold-formed steel through partial welding.
MNS low-voltage withdrawable switchgear is suitable for power systems with an AC voltage of 50Hz and a rated operating voltage of 400V. It is mainly used for energy conversion, distribution, and control of distribution equipment. It is primarily suitable for airports, power plants, transportation and energy sectors, industrial and mining enterprises, residential communities, and other locations.
● Excellent Quality: The equipment framework is of a composite structure, with the basic skeleton assembled from C-shaped steel. All structural components of the cabinet frame are galvanized and firmly fixed to the basic cabinet frame using self-tapping screws or 8.8 grade hex bolts.
● Flexible Demand: Meets the requirements of various inlet and outlet lines: top inlet and bottom outlet, top inlet and bottom outlet, bottom inlet and bottom outlet.
● Efficient Design: Accommodates more functional units in a smaller space.
● Safe and Reliable: Made of high-strength flame-retardant engineering plastics, effectively enhancing protection and safety performance. Highly versatile, standardized, and easy to assemble, ensuring reliable quality.
● Ambient temperature: -25°C ~ +45°C.
● Humidity: daily average ≤ 95%; monthly average ≤ 90%.
● Altitude: ≤ 2000 meters.
● Earthquake resistance: 8 degree.
| Content | Unit | Value | |
| Rated Voltage | V | 400 | |
| Rated insulation voltage | V | 690 | |
| Rated frequency | HZ | 50/60 | |
| Main bus rated current | A | 1600 ~ 4000 | |
| Rated Current of Distribution Busbar | A | 400 ~ 1000 | |
| Rated short-time withstand current of Main Bus | KA | 80 | |
| Rated short-time withstand current of distribution busbar | KA | 50 | |
| Protection Level | IP41,IP40,IP31,IP30 | ||
