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All Manufacturers > Littelfuse > High Voltage E Rated > Quick Guide
Series: E-RATED 
E Rated Distribution fuses
E rated power fuses are current limiting partial-range fuses usually used for fusing the primary windings of medium voltage distribution transformers and associated distribution circuits.
Their high degree of current limitation greatly reduces the thermal and mechanical stresses imposed on system components during a short circuit. They can be used indoors or outdoors in a suitable enclosure and conform to standard N.American dimensions. Features
- General purpose 'E' rated characteristics.
- Pure silver elements
- Fully plated metal parts for cool running.
- Excellent current limitation for substantial reduction of short
circuit stresses.
- Blown fuse indicator pin for visual indication or mechanical
actuation (except 2" body)
- All D Case 3" Diameter fuses can be hermetically sealed and
supplied without indicator for use in hazardous location application.
Companion Products
Standoff insulators, fuse clips and bases. Please see accessories section in rear of this section. For other ratings and designs, please contact Fusetek.
Retrofitting
Fusetek power fuses are dimensionally compatible with and interchangeable with other manufacturers' fuses having the same dimensions and ratings. Standard 'E' rated characteristics ensure electrical equivalency.
Fuses should be replaced in sets of three to avoid nuiscance blowing caused by element damage.
Tag Variations
3" diameter E rated fuses are available with the following options. Add the suffixes shown to the end of the part number - example;
X - 2" longer tube to line up with some manufacturers' longer bodies.
Bi - Offset mounting brackets for bolt mounting.
W - Hookeye disconnect feature.
CL - ITE/Gould style clip-lock mounting.
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