Regulacion

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Fusing Equipment
Coordination Tables of Current-Sensing and Dual-Sensing Bay-O-Net Fuses with Types K and T Fuse Links

R240-30-8

Reference Information

The following coordination charts showthe maximum fault current coordination levels of Current-Sensing and Dual-Sensing Bay-O-Net Fuses with both Cooper Power Systems K and T Fuse Links, using a 75% safety margin. Coordination ofCurrent-Sensing Bay-O-Net Fuses with EEI-NEMA Type K Fuse Links
Rating in Amperes of Protected Type K Fuse Link Bay-O-Net 353C Series (Protecting) 6A (C04) 10A (C06) 15A (C08) 25A (C10) 40A (C12) 65A (C14)100A (C16) 140A (C17) 10K 210 12K 300 15K 460 270 20K 630 430 300 25K 820 650 510 30K 1050 950 800 40K 1360 1360 1180 620 50K 1680 1680 1680 1175 65K 2200 2200 2200 1780 230 80K 2720 2720 2720 24001025 100K * * * * 2650 140K * * * * * * 200K * * * * * * * Maximum Current (rms) that Protecting and Protected Fuses Coordinate

Coordination of Current-Sensing Bay-O-Net Fuses with EEI-NEMA Type TFuse Links
Rating in Amperes of Protected Type T Fuse Link Bay-O-Net 353C Series (Protecting) 6A (C04) 10A (C06) 15A (C08) 25A (C10) 40A (C12) 65A (C14) 100A (C16) 140A (C17) 10T 500 12T 700 15T 900800 20T 1200 1200 25T 1480 1480 1400 30T 1900 1900 1900 40T 2500 2500 2500 2500 50T 3100 3100 3100 3100 65T * * * * * 80T * * * * * 100T * * * * * 140T * * * * * * 200T * * * * * * * Maximum Current(rms) that Protecting and Protected Fuses Coordinate

* Fuse combination should not be used together because the current level that the fuses coordinate to exceeds the maximum interrupting rating ofthe Bay-O-Net Fuse. NOTE: Some fuses as shown in the table below have lower interrupting ratings depending on the system voltage levels and transformer insulating fluid. Maximum Single-PhaseInterrupting Rating Voltage (kV) 8.3 Catalog Number 353C04-C08 353C10-C12 353C14-C17 353C04-C08 15.5 23.0 353C10-C12 353C14-C17 353C04-C17 Cover Mount Assembly (rms symmetrical) in Mineral Oil 3500 A 3500 A...
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