50E1C8.25 - E-Rated Series

Series: E-Rated
Questions? Contact Littelfuse Support
E-Rated Fuses
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E-Rated fuses have time current characteristics designed to provide current limiting protection for power transformers, potential transformers, power centers, feeder centers, and unit sub stations. When properly applied, they can protect against high and low value fault currents.

NEMA Standards for E-rated medium voltage fuses require that fuses rated 100E or less open within 300 seconds (5 minutes) when subjected to an RMS value of 200-240% of the fuse's continuous current rating; and fuses with an E-rating larger than 100E must open within 600 seconds (10 minutes) when subjected to an rms current of 220-240% of the fuse's continuous current rating. These values establish one point on the time-current curve.

Live Parts
Live parts are available for mounting "E", "R", and "PT" single, double, and triple barrel fuses. Mounting clips are available for ferrule type and clip lock style fuses. All clips are sold in pairs.

Contact factory for additional live parts.
Property (Mouseover for details) Value
Ampere Rating (A) 50
VAC (V) 8250
Interrupting Rating 80000A@8250VAC

pdf icon Medium Voltage Fuse Datasheet

pdf icon Medium Voltage Fuses E-Rated 2D Prints

pdf icon Medium Voltage Cross-Reference - Fuses in Stock

Littelfuse_Mexico_PiedrasNegras_ISO14001icon 2021-02-14_ISO 14001 2015_Piedras Negras Mexico

Document 2020-10-20_IATF 16949_Piedras Negras Mexico

pdf icon E-Rated Time Current Curves - 2.75kV E-Rated 10E-80E - Melting Time

pdf icon E-Rated Time Current Curves - 2.75kV E-Rated 100E-400E - Melting Time

pdf icon E-Rated Time Current Curves - 2.75kV E-Rated 10E-80E - Clearing Time

pdf icon E-Rated Time Current Curves - 2.75kV E-Rated 100E-400E - Clearing Time

pdf icon E-Rated Time Current Curves - 5.5kV E-Rated 10E-600E - Melting Time

pdf icon E-Rated Time Current Curves - 5.5kV E-Rated 10E-600E - Clearing Time

pdf icon E-Rated Time Current Curves - 8.25kV E-Rated 10E-80E - Clearing Time

pdf icon E-Rated Time Current Curves - 8.25.kV E-Rated 10E-80E - Melting Time

pdf icon E-Rated Time Current Curves - 15.5kV E-Rated 10E-80E - Melting Time

pdf icon E-Rated Time Current Curves - 15.5kV E-Rated 100E-300E - Melting Time

pdf icon E-Rated Time Current Curves - 38.0kV E-Rated 15E-80E - Melting Time

pdf icon E-Rated Time Current Curves - 38.0kV E-Rated 15E-80E - Clearing Time

pdf icon E-Rated Time Current Curves - 25.8kV E-Rated 15E-100E - Clearing Time

pdf icon E-Rated Time Current Curves - 15.5kV E-Rated 100E-300E - Clearing Time

pdf icon E-Rated Time Current Curves - 15.kV E-Rated 10E-80E - Clearing Time

pdf icon E-Rated Time Current Curves - 25.8kV E-Rated 15E-100E - Melting Time

pdf icon E-Rated Time Current Curves 8.25 kV E-Rated 100E-400E Clearing Time

pdf icon E-Rated Time Current Curves 8.25 kV E-Rated 100E-400E Melting Time