CN
The HNGFD fixed‑compartment low‑voltage switchgear adopts metal partitions to achieve complete isolation between units. It features robust structure and convenient maintenance. This design provides an extremely high safety level and can effectively prevent fault propagation to ensure power supply continuity. Therefore, this cabinet type is especially suitable for applications with strict requirements on power supply stability and safety, such as power plants, petrochemical industries, rail transit and large‑scale data centers, delivering reliable guarantee for critical electrical loads.
This product complies with GB/T 7251, JB/T 9661, IEC 61439.
|
Rated voltage of main circuit (V) |
400 |
|
|
Rated insulation voltage (V) |
690 |
|
|
Frequency (Hz) |
50 (60) |
|
|
Rated current (A) |
Horizontal busbar |
≤6300 |
|
Vertical busbar |
≤1600 |
|
|
Rated short‑time withstand current of busbar (kA/1s) |
50, 65, 80, 100 |
|
|
Rated peak withstand current of busbar (kA) |
105, 143, 176, 220 |
|
|
Power‑frequency withstand test voltage (V/min) |
Main circuit |
2500 |
|
Auxiliary circuit |
1760 |
|
|
Busbar |
Three‑phase four‑wire system |
A, B, C, PEN |
|
Three‑phase five‑wire system |
A, B, C, PE, N |
|
|
Degree of protection of enclosure |
IP41, IP40, IP31, IP30 |
|
|
Outlet unit specification |
1/2, 1, 1.5, 2, 3 |
|
