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ANSI outdoor current limiting fuse COL

The COL fuse is designed for outdoor use only. It is current limiting, indicating and disconnecting.

The COL fuse is a full range current limiting capacitor fuse. It is designed for outdoor use only. COL fuses exist in voltage classes of 2.8 kV, 5.5 kV, 8.3 kV, 15.5 kV and 23 kV, and are applied to individual capacitor units in outdoor stacking equipment. The normal current is 8-80 A. The COL fuse is current limiting, indicating and disconnecting.

The COL current limiting capacitor fuse is a two-part design: The high current section interrupts high 60 Hz fault currents and/or high frequency discharge current from parallel capacitors. The low voltage section consists of a standard NEMA type K fuse link mounted in a fiber tube. The low current section interrupts fault associated with progressive failure of the capacitor unit's dielectric, or 60 Hz fault current limited by the circuit impedance to low values.

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