Low-Voltage Switchgear Cabinet
MD MAXCustomized according to drawings and needs
The MDmax switchgear is a new generation of modular switchgear authorized by ABB for our company to produce. The device (standard type) has a maximum current of 4000A and can be widely adapted to various power supply and distribution needs. It complies with IEC61439 and GB7251 standards. The MDmax switchgear can provide a complete structural solution for power distribution control systems. These highly standardized, universal and systematized accessories can fully meet the application requirements of various types in the market, including meeting the technical standards. electrical and mechanical characteristics, protection level requirements, etc. related to power distribution or control systems. It can even be installed on site.
The MDmax switchgear is a brand-new series frame developed by ABB based on years of design and manufacturing experience. It features strong interchangeability of components, a limited variety of accessories, and easy and quick assembly, which makes it highly popular among customers. The MDmax switchgear is equipped with a new type of double T-shaped profile, three-way connectors, and multi-faceted channel busbar structure.
The MDmax series can be configured in various structures such as floor-standing and wall-mounted types. Whether it is used with miniature circuit breakers, molded case circuit breakers or frame circuit breakers, MDmax offers highly standardized accessories to achieve various internal partitions: the busbar area, equipment area and cable area are isolated from each other, and the incoming and outgoing lines can be arranged flexibly. It can also be arranged as a front maintenance or rear maintenance system as required.
-
Structural Features
Rational design: Function units are combined based on the characteristics of electrical components such as ABB's MegamaxF, Emax and Isomax S.
Universal structure and flexible assembly: K-type profiles are used to meet the requirements of various structural forms, protection levels and usage environments.
Standard modules: They can be respectively combined into standard units such as protection, operation, conversion and control, and the module structure can be arbitrarily selected and assembled.
Safety protection: By implementing isolation between areas and mutual isolation between the incoming and outgoing lines of functional units, the safety protection performance is effectively enhanced.
High technical performance: The main technical parameters are generally at a high level.
Compressed site: The degree of standardization, generalization and serialization of structural components is high, which can compress the storage and transportation site of prefabricated components.
Convenient installation: No special complex tools are required.
Product Features:
The adoption of a T-shaped frame system has enhanced the protection level of the cabinet.
The cabinet frame is assembled with three-way connectors to prevent eddy currents, and the cabinet body has high symmetrical precision..
The novel design of the glass door enhances the safety and aesthetic appeal of the switch cabinet.
Insertable or pull-out circuit breakers are adopted to ensure safety during component replacement and maintenance
The outgoing circuits of the distribution control cabinet can reach up to 18 circuits (separated form 3b).
Usage environment
(1) The ambient air temperature shal not exceed +40°C and shall not be lower than -15°C. The average temperature within 24 hours shall not exceed +35°C. When exceeded, the operation capacity shall be reduced according to the actual situation.
(2)It is for indoor use and the altitude of the installation site shall not exceed 2000m.
(3)The relative humidity of the ambient air shall not exceed 50% at the upper limit temperature of +40°C. At lower temperatures, a higher relative humidity is allowed, such as 90% at +20°C. The possible influence of occasional condensation due to temperature changes shall be taken into account.
(4)The inclination of the installation to the vertical plane shall not exceed 5.
(5)The installation shall be carried out in a place free from severe vibration, shock and corrosion.
(6) If the user has special requirements, they can be resolved through consultation with the manufacturer.
-
Item
Unit
Parameter
Rated Working Voltage
V
AC400 、AC660
Rated Frequency
Hz
50
Rated Current
Horizontal Busbar
A
≤4000
Vertical Busbar
A
400-1250
Rated Short-Time Withstand Current (1S)
kA
50- 80
Rated Peak Withstand Current
kA
105-176
Rated Ultimate Short-Circuit Breaking Capacity
kA
65-80
Rated Service Short-Circuit Breaking Capacity
kA
50-80
Rated Impulse Withstand Voltage (Low Voltage)
kV
12
Rated Insulation Voltage
V
AC660 、AC1000
Protection Class
IP4X
Overall Dimensions (Width × Depth × Height)
mm
600（800 、1000）×600（800 、1000）×2200