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MNH (MNS) W low-voltage withdrawable switchgear

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MNS low-voltage draw out switchgear is a new generation of low-voltage switchgear developed according to market demand. The technical standards of the products meet the requirements of IEC439 Low voltage Switchgear and Control Equipment in Sets, GB7251 Low voltage Switchgear in Sets and other standards. MNS low voltage draw out switch cabinet is suitable for power plants, substations, petrochemical, metallurgical steel rolling, light industrial and textile enterprises and small residential buildings Areas, high-rise buildings and other places are used for power conversion, distribution and control of power distribution equipment of power system with AC 50~60Hz and rated working voltage below 660V.

key word:

Low voltage draw out switchgear

Hotline:

400-0571-505

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Detailed introduction

Graphic details

Product Overview

Product model

Overall dimensions of products

Drawer type

There are five standard dimensions, all based on the height of 8E (200mm):

8E/4: Assemble 4 drawer units in 8E height space;

8E/2: Assemble 2 drawer units at 8E height

8E: Assemble one drawer unit in the space of 8E height;

16E: assemble one drawer unit at the height of 16E (400mm);

24E: Assemble one drawer unit at the height of 24E (600mm).

The five types of drawer units can be assembled in a single cabinet or mixed. The maximum number of drawer units that can be accommodated in a single cabinet for assembly is shown in Table 1.

Drawer type

8E/4

8E/2

16E

24E

Maximum number of units

Operating environment

·The ambient air temperature is not higher than+40 ° C and not lower than - 5 ° C, and the average temperature within 24h is not higher than+35 ° C;

·Atmospheric conditions: the air is clean, the relative humidity does not exceed 50% when the maximum temperature is+40 ° C, and it is allowed to have

High relative humidity, for example, 90% at+20 ° C, but the temperature change should be taken into account, which may cause occasional condensation;

·The altitude of the place of use shall not exceed 2000m;

·The device is suitable for the following temperature transportation and storage processes: - 25 ° C to+5.5 ° C. Within a short time (no more than

24h) can reach+70 ° C. Under these extreme temperatures, the device shall not suffer any irrecoverable damage, and under the above conditions

It shall be able to work normally;

·If the above use conditions cannot be met, the user and the manufacturer shall negotiate for solutions;

·When the unit is used in offshore oil drilling and production platforms and nuclear power plants, a separate technical agreement shall be signed.

technical data

Electrical performance

Rated insulation voltage 660V;

Rated working voltage: 380V, 660V

The maximum working current of the main bus is 5500A (IP0O) 4700A (IP30);

Short time (Is) withstand current of main bus 100kA (effective value);

Peak withstand current of main bus 250kA (maximum);

The maximum working current of distribution bus (vertical bus) is 1000A;

Short time withstand current of distribution bus (vertical bus);

Standard type 50kA (effective value)

Product features

·Compact design: more functional units can be accommodated in a smaller space;

·Strong structural versatility and flexible assembly: the C-shaped profile with 25mm module can meet the requirements of various structural types, protection grades and use environments;

·Standard module design: it can be used to form standard units for protection, operation, conversion, control, adjustment, measurement, indication, etc. Users can choose to assemble them according to their needs. The cabinet frame structure and drawer unit of different schemes can be composed of more than 200 assembly parts;

Safety: a large number of high-strength flame-retardant engineering plastic components are used to effectively enhance the protection and safety performance

High technical performance: the main parameters reach the contemporary international technical level;

·Compression site: the site for storage and transportation of prefabricated parts can be greatly compressed due to the high degree of "three modernizations";

·Convenient assembly: no special complex tools are required.

Main technical data

A. Power distribution center (PC) cabinet Unit: mm Table 2

High H	wide B	deep			remarks
High H	wide B	T	Ti	T2	remarks
2200	400	1000	800	200	Transfer of main bus
2200	400	1000	800	200
2200	600	1000	800	200
2200	800	1000	800	200
2200	1000	1000	800	200
2200	1200	1000	800	200

B. MCC cabinet Unit: mm Table 2

high H	wide			deep			remarks
high H	B	B1	B2	T	Ti	T2	remarks
2200	1000	600	400	400	400	200	Single side operation
2200	1000	600	400	1000	400	200	Double sided operation

Ordering Instructions

Users shall provide the following information when ordering products:

·Full model of the product (including main circuit scheme number and auxiliary circuit scheme number);

·Combination sequence diagram of main circuit system;

·Electrical schematic diagram of auxiliary circuit;

·List of components in the cabinet;

·Other special requirements of the product shall be mentioned separately.

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