MNS Switchgear

MNS low-voltage withdrawable switchgear meets the requirements of JB/T9661, GB7251.1 "Low-Voltage Switchgear and Control Equipment" and other standards. This low-voltage switchgear is suitable for power systems with AC 50Hz~60Hz and rated voltage to 660V and below, as the control of...

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Description

MNS low-voltage withdrawable switchgear meets the requirements of JB/T9661, GB7251.1 "Low-Voltage Switchgear and Control Equipment" and other standards.

This low-voltage switchgear is suitable for power systems with AC 50Hz~60Hz and rated voltage to 660V and below, as the control of power generation, transmission, distribution, power conversion and power consumption equipment.

Model and meaning

M N S

M: standard mode N: low voltage S: switch power distribution device

Normal use environmental conditions

1. For indoor installation;

2. The ambient air temperature is not higher than +40℃, not lower than -5℃, and the average temperature within 24h is not higher than +35℃;

3. Air cleanliness: the relative humidity does not exceed 50% when the high ambient temperature is +40℃, and higher humidity is allowed at lower temperatures, such as at +20℃, the relative humidity is 90% and temperature changes are allowed A small amount of condensation occurs occasionally;

4. The altitude does not exceed 2000m;

5. The pollution level is 3;

6. The temperature during transportation and storage is -25℃~+55℃, and it can reach +70℃ in a short time (not more than 24h);

7. When some electrical components and accessories used in the device do not meet the above conditions and the use conditions do not meet the normal conditions, the manufacturer and the user shall negotiate and resolve.

Main technical parameters

Item	Unit	Data
Rated voltage	V	380 / 660
Rated insulation voltage	V	660/1000
Rated frequency	Hz	50 / 60
Rated main bus bar max. current	A	5500(IP00),4700(IP30)
Rated short time withstand current of main bus bar(1s)	kA	100
Rated short time peak withstand current of main bus bar	kA	250
Rated distribution bus bar current	A	1000(IP30)
Rated short time peak withstand current of distribution bus bar	kA	95
Degree of protection		IP30,IP40