An MDB is a panel or enclosure that houses the fuses, circuit breakers and ground leakage protection units where the electrical energy, which is used to distribute electrical power to numerous individual circuits or consumer points, is taken in from the transformer or an upstream panel. An MDB typically has a single or multiple incoming power sources and includes main circuit breakers and residual current or earth leakage protection devices.

 

Applications Operation, Control & protection of distribution network
System 3 Phase, 3 or 4 wire, 50Hz
Rated Current Upto 4000 Amps
Operational Voltage
110/230v 415v AC
Rated Insulation 1000v
Rated Service Voltage 690v
Ambient Temperature
45 Deg C
Short Time Current
50KA for 1Sec, 105KA peak
Degree of Protection
IP42-IP54
Form of Sepration
Upto 3B/4B (Optional Type 5)
Type Tested for
Short Time Current withstand Temperature Rise Degree of Protection
Bus Bar System
Interleaved above 1600A
Bus Bar Aluminium or Copper
Ref. Standard
IEC61439-12009, IS:8623
Feeder Configuration Semi Drowout or Fix Type

 

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