Why Mfg increase HRC fuse breaking capacity
Why Mfg increase HRC fuse breaking capacity
(OP)
Recently Siemens has increased the 415 V HRC fuse breaking capacity to 120 KA, Why it happens??
As a end user how we can choose right breaking capacity for 415 V system ?? particulraly for 415 V Motor Feeders.
As a end user how we can choose right breaking capacity for 415 V system ?? particulraly for 415 V Motor Feeders.





RE: Why Mfg increase HRC fuse breaking capacity
Siemens are likely adapting to market demand for higher breaking capacities as LV fault levels get higher, especially in Europe and in the European sphere of influence where LV fault levels have typically been lower than the equivalents in North America. IIRC, 200kA breaking capacity isn't unusual for North American fuses.
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