|Mining switchboard boxes MSB-10, MSB-20, MSB-30, MSB-50 are designed for connection of intrinsically safe circuits of the UTAS system.
Maximum commutating voltage of intrinsically safe circuits – 30 V.
Maximum number of commutating conductor pairs:
MSB -10 10
MSB -20 20
MSB -30 30
MSB -50 50
Level and type of switchboard boxes explosion protection - RО (mining extra explosion- proof (Ukrainian standard)) Ia.
Level of switchboard boxes ingress protection – IP65.
Mining switchboard boxes (MSB) are designed for application in mines including gas and dust hazardous ones.