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NF50-HRP Datasheet(PDF) 15 Page - Mitsubishi Electric Semiconductor |
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NF50-HRP Datasheet(HTML) 15 Page - Mitsubishi Electric Semiconductor |
15 / 105 page 14 5. CIRCUIT BREAKER SELECTION 5.1 Circuit Breaker Selection Table Following Table shows various characteristics of each breaker to consider selection and coordination with upstream devices or loads. Characteristics Standard : Standard characteristics MCCBs Low-inst : Low-inst. MCCBs for Discrimination When a power fuse (PF) is used as a high-voltage protector, it must be coordinated with an MCCBs on the secondary side. Generator : Generator-Protection MCCBs These MCCBs have long-time-delay operation shorter than standard type and low instantaneous operation. Mag-Only : Magnetic trip only MCCBs These are standard MCCBs minus the thermal tripping device. They have no time- delay tripping characteristic, providing protection only against large-magnitude short- circuit faults. PF short-time tolerancs capacity Pf. Tr. MCCB1 MCCB2 MCCB operating characteristic curve Low-inst.MCCBs Current |
Similar Description - NF50-HRP |
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