High/Low Voltage Complete Plant

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
Rated current (A)	Vertical Busbar (MCC)	1000 2000
Busbar rated short-time withstand current (kA/1s)	Horizontal busbar	50~100
Busbar rated short-time withstand current (kA/1s)	Vertical Busbar (MCC)	60
Busbar rated peak withstand current(kA/0.1s)	Horizontal busbar	105~250
Busbar rated peak withstand current(kA/0.1s)	Vertical Busbar (MCC)	130~150
Power frequency test voltage(V/1min)	The main circuit	2500
Power frequency test voltage(V/1min)	Auxiliary circuit	2000
Busbar	Three-phase four-wire system	A、B、C、PEN
Busbar	Three-phase five-wire system	A、B、C、PE、N
Protection class		Ip30 Ip40

Operation environment

1. The ambient air temperature is not higher than+40°C and not lower than-5°C. The average temperature within 24 hours shall not be higher than+35°C.

2. Indoor installation and use, the altitude of the place of use shall not exceed 2000 meters.

3. The relative humidity of ambient air shall not exceed 50% at the highest temperature of+40°C, and a larger relative temperature is allowed at the lower temperature. (for example, 90% at +20°C) The influence of condensation that may occasionally occur due to temperature change should be considered.

4. When the equipment is installed, the inclination from the vertical plane shall not exceed 5%.

5. The equipment should be installed in a place where there is no violent vibration and where the electrical components are not corroded.

6. Users can negotiate with the manufacturer to solve special requirements.