MNS electrical power distribution cabinet low voltage switchgear movale drawer type switchgear with panel
MNS Drawout Low-Voltage Switchgear is assembled with modularized components as combination unit (hereinafter called the device). It is applied to AC 50-60Hz @ rated operating voltage of 660V or below for power receiving and distribution of low voltage distribution system and for power switching, distribution and control of power distribution and motor control center as well as capacitance compensation. The switchgear cabinet complies with GB7251.12-2013.
1). Adopting panel-division design, flexible equipment of charging cabinet and distribution cabinet, easy to charge;
2). Adopting intelligent high-frequency switch charging module, advanced technique and high reliability;
3). Providing dual-circuits alternating-current input interface, capable of accomplishing dual-circuits alternating-current input main and standby automatic switching and locking;
4). High charging efficiency, small volume, steady product quality, excellent performance;
5). The charger adopting intelligent module design, easy to connect with automation system; has function of self-protection;
6). The module equipped with alternating current under-voltage protection and AC phase-lack protection to realize alternating-current side protection; the module can recover normal working state when input is normal; besides, the module is equipped with lightning protection to realize slow starting function and slow function;
7). Over-voltage protection: the module inputting voltage, capable of automatically turning off machine, to realize load-side protection; the over-voltage protective point of 220V module is 320V±5%, while 110V module is 160V±5%;
8). Short-circuit protection : when short-circuit fault occurs in module input, the output voltage of module fall to 0V and input current lower 15% than rated current; when fault is solved, the module can work again;
9). Over-temperature protection: when radiator temperature detected by module exceeds to 85°C, the system automatically turn off machine; and when the temperature recover to normal scope, the module can work again;10). module connection in parallel protection: the module is equipped with circuit in parallel inside; it can automatically log out system when fault occurs, and has no effect on other modules.
Conditions of use
1. For indoor use, the elevation of the service point shall not exceed 2000m.
2, the ambient air temperature is not higher than +40 degrees, not lower than negative 5 degrees.The average temperature should not be higher than +35 degrees within 24 hours.When exceeding, the capacity should be reduced according to the actual situation.
3. The relative high temperature of the surrounding air is +40 ° c and does not exceed 50%, and a large relative temperature is allowed at a lower temperature;If +20 degrees is 90%, consideration should be given to the effect of occasional condensation caused by temperature changes.
4. When the device is installed, the tilt with the vertical plane shall not exceed 5°, and the whole set of cabinets shall be relatively flat in line with the standard of gbj232-2.
5. The device shall be installed in a place where there is no severe vibration and impact and no corrosion of electrical components is sufficient to use
4. Electrical panels Basic Parameters
|Rated operating voltage
|Rated insulation volatge
|Horizontal busbar current rating
||1250 2000 2500 3200
|Vertical busbar current rating
|Max. feeder circuit current
|Max. drawer circuit current
|Max. control motor capacity
|Horizontal busbar peak withsatnd current
|Horizontal busbar short-time withstand current
|Vertical busbar peak withstand current
|Vertical busbar short-time withstand current
|Rated power freq. withstand voltage
|Secondary power freq. withstand voltage
|Enclosure protection degree
5. Order information
Schematic diagram of main circuit or electrical schematic diagram
Arrangement and layout
Model, specification and quantity of main components.
Incoming and outgoing wire method and cable specification, etc
If bus connection is required between the devices, bus connection and height from the ground shall be provided.
1. Indoor altitude above sea level: Maximum installation altitude: 2000m
2. Ambient air temperature: -5℃~+40℃ and the average temperature should not
exceed +35℃ in 24h
3. Relative humidity should not exceed 50% at max temperature +40℃. Higher
relative humidity is allowed at lower temperature. Ex. 90% at +20℃. But in view of
the temperature change, it is possible that moderate dews will produce casually.
4. No fire, explosion danger, serious pollution, chemical corrosion and severe vibration
5. Installation gradient not exceed 5°
6. This product is suitable for the following temperature transportation storage: -25℃ ~+55℃ 24h, in a short period of time (no more than 24hours) not more than+70℃.
This series of products with high breaking capacity, good dynamic stability, advanced and reasonable structure, electrical program of practical, series, strong versatility, various schemes of unit combination, a cabinet contained many circuits, save the area , beautiful appearance, high level protection, safe and reliable, convenient maintenance etc.
It accords with the standards IEC439 NEMA ICS2-322 as well as the GB7251-87 “Low voltage complete switch device ” national standards and ZBK36001-89 "low voltage withdraw type complete switch device” professional standards"