Low Voltage Combined Withdrawable Switchgear
MNS low-voltage combined draw out distribution cabinet is suitable for systems with AC 50~60Hz and rated operation voltage of 660V and below. It is used for the control of power generation, transmission, distribution, electric energy conversion and electric energy consumption.
This device is not only suitable for general places, but also can be used in offshore oil drilling and production platforms and nuclear power plants after special treatment. This device conforms to 1EC439, Part 5 of VDE0660,, GB7251 "Low-voltage switchgear" national standard and ZBK36001 "Low-voltage withdrawable switchgear" professional standard.
Technical parameters
| 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 | |
