NX and CX Transformer Fuses
CX fuses are general purpose current limiting fuses, which are designed specifically to provide complete fault protection on high capacity indoor and underground distribution systems. These fuses are C-rated and exceed the requirements of c37 standards for general purpose distribution current limiting fuses.
Most of the fuses are constructed with pure silver fuse elements, high purity silica sand filler with controller grain size, an inorganic core with spaced arc suppressors, and a glass melamine or glass epoxy outer casing.
Features
- Quiet, safe operation
- Limits fault current let-through
- Arc-voltage protection
- Maintains non-conductance after interruption
- Fits many mountings
- Interchangeable with other brands
Applications
- Pad-mounted and submersible three-phase and single-phase transformers.
- Pad-mounted and submersible switch and fuse units.
- Station service protection
- Primary switch and fuse units on mine rectifiers/
Definitions
- In a C-rated fuse, the current responsive element shall melt in 1000 seconds at an rms current within the range of 170% to 240% of the continuous current rating of the device.
Brands:
- Eaton Cutler Hammer Westinghouse
- Ferraz Shawmut
- Cooper Power Systems
- Hi-Tech Fuse
