Main Distribution Panel (MDB)
Status: Order
The Main Distribution Board (MDB) is installed downstream of the Main Switchboard (MSB) and upstream of the Distribution Boards (DBs). It serves as an intermediate component in the low-voltage electrical distribution system.
The MDB receives power the MSB and then distributes it by converting the high-capacity current multiple lower-capacity circuits, supplying power to various electrical loads.
Technical characteristics
| Specification | Value |
|---|---|
| Standard | IEC 60439-1 & 2 |
| Rated operational voltage | 690 VAC |
| Rated insulation voltage | 1000 VAC |
| Rated frequency | 50 / 60 Hz |
| Rated impulse withstand voltage | 12 kV |
| Incoming/outgoing current limit | Up to 1600 A |
| Control circuit voltage | 230 VAC |
| Protection rating (IP) | IP3x / IP4x / IP5x |
| Enclosure construction | Form 1 / 2a / 2b |
Application
The Main Distribution Board (MDB) is an essential component of low-voltage electrical networks. It is commonly installed in technical rooms of factories, residential buildings, office complexes, shopping centers, hospitals, and airports, serving the power needs of production, daily operations, and services.
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