In low Voltage applications, Circuit Breakers are commonly used. But due to its characteristics some applications still prefer fuses and switches or switch fuse units. Let us se which all applications find it necessary to use switch fuse units preferably over low voltage circuit breakers.
1. Protection of speed drives
2. Protection against short-circuit when CB characteristics are too short
3. Protection of capacitor banks.
4. Protection in DC applications (UPS, PV inverters …)
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