MR (Medium Rating) is the range dedicated to the distribution of power in medium to large companies, in riser power supplies (light wells), in service sector buildings.
The range of MR junction boxes is very large, to satisfy all customer needs. The MR range is the ideal solution in the vertical (riser column) applications, which do not require busbar blocking elements, or thermal expansion elements.
The monobloc that distinguishes the range compensates the thermal expansion of conductors.
The typical applications where the MR busbars can be used are:
And everywhere there is the need for power distribution (up to 1000A).
MR is available in various sizes, from 160 A to 1000 A with aluminium alloy conductors, and from 250 A to 1000 A with 99.9% electrolytic copper conductors.
The range of junction blocks is from 16 to 1000 A and can be fitted with protection devices such as fuses, miniaturised circuit breakers and/or moulded case circuit breakers.
Strong and reliable, the MR line has components with fire barrier (S120 according to IEC EN 1366).