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