The 100 and 185mm systems are designed for use in efficient power distribution assemblies with a high short-circuit withstand capacity. the small size of the NH in-line fuse switch disconnectors used in these systems allows the switch cubicle space to be used optimally. The wide spacing of the busbars in the 185mm system means that short-circuit ratings in excess of 100ka can be achieved. all components of the 100 and 185mm system can be mounted with little handling, and the time-consuming task of drilling busbars no longer required.
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