MNS low-voltage combined withdrawable switchgear (hereinafter referred to as the device) is a product manufactured according to the technology transferred from ABB in Switzerland. The products have been localized by our factory. MNS type low-voltage combined withdrawable power distribution cabinet is suitable for systems with AC 50~60HZ and rated working voltage of 660V and below, for control of power generation, transmission, distribution, power conversion and power consumption.
In addition to being suitable for general places, the device can also be used in offshore oil drilling platforms and nuclear power plants after special treatment. This device complies with 1EC439, VDE0660 Part 5 and GB7251 "Low-voltage switchgear" national standard, ZBK36001 "Low-voltage withdrawable switchgear" professional standard.
Main circuit rated voltage (V) | AC 380 400 660 | |
Auxiliary circuit rated voltage (V) | AC 220 380 400 | |
Rated frequency (Hz) | 50(60) | |
Rated insulation voltage (V) | 660 1000 | |
Rated current (A) | Horizontal busbar | 630- 5000 |
Vertical Busbar (MCC) | 1000 2000 | |
Busbar rated short-time withstand current (kA/1s) | Horizontal busbar | 50~100 |
Vertical Busbar (MCC) | 60 | |
Busbar rated peak withstand current(kA/0.1s) | Horizontal busbar | 105~250 |
Vertical Busbar (MCC) | 130~150 | |
Power frequency test voltage(V/1min) | The main circuit | 2500 |
Auxiliary circuit | 2000 | |
Busbar | Three-phase four-wire system | A、B、C、PEN |
Three-phase five-wire system | A、B、C、PE、N | |
Protection class | Ip30 Ip40 |