Bussmann E-Rated Medium Voltage Fuses: ECL155 For ...

1 E-Rated Medium Voltage Fuses: ECL155 For Transformer and feeder protection kV Form No. ECL155 Page 1 of 4 Data Sheet: 9004 Bussmann CATALOG SYMBOL:ECL155E-RATED Medium Voltage Fuses: Meets E requirements per ANSI General Purpose requirements per ANSI TRANSFORMER AND feeder PROTECTIONVOLTAGE KVINTERRUPTING RATING: See LIMITING CONSTRUCTION: Silver element in a double concentric helical configuration Silica filler Silver plated copper terminals and endcaps Filament wound, glass epoxy fuse tubeFEATURES: General Purpose Fuses. Bussmann s Medium Voltage fusesprovide general purpose protection and are capable of interrupt-ing fault currents up to 50,000A RMS sym. Clip-Lock Double Barrel Fuse Design. Indoor and Outdoor filament wound, glass epoxyfuse tube provides UV and moisture protection for the fuse.

2 Thismakes Bussmann s Medium Voltage fuses suitable for bothindoor and outdoor applications. Open Fuse Indication. Indicator travel distance is 16mm. Operating Frequency: 50/60 Hz Dimensional Data: ECL155 series , see page 2. Performance Curves. see pages CharacteristicsBussmannAmpereIR# ofNumber RatingVoltage Max # StyleECL155-10E10E Clip-Lock ECL155 -15E15E 20E 63KA 1 1 Clip-LockECL155-25E25E 200E Number ConstructionCatalog SymbolVoltage RatingAmpere RatingExampleECL155300E155 = kVCatalog Number Cross ReferenceFerraz-Shawmut Ferraz-ShawmutBussmannNew Catalog # Old Catalog # ECL155 -10E A155C1 DORO-10E225-007-967 ECL155 -15E A155C1 DORO-15E225-007-968 ECL155 -20E A155C1 DORO-20E225-007-969 ECL155 -25E A155C1

3 DORO-25E225-007-970 ECL155 -30E A155C1 DORO-30E225-007-971 ECL155 -40E A155C1 DORO-40E225-007-972 ECL155 -50E A155C1 DORO-50E225-007-973 ECL155 -65E A155C1 DORO-65E225-007-974 ECL155 -80E A155C1 DORO-80E225-007-975 ECL155 -100E A155C1 DORO-100E225-007-976 ECL155 -125E A155C2 DORO-125E225-007-977 ECL155 -150E A155C3 DORO-150E225-007-978 ECL155 -200E A155C3 DORO-200E225-007-979 ECL155 -250E A155C3 DORO-250E225-007-980 ECL155 -300E A155C3 DORO-300E225-007-981 Current-limiting Medium Voltage fuses are classifiedinto three categories: Full Range - defined by ANSI as a fuse capable of interruptingall currents from the maximum rated interrupting current down to the minimum continuous current that causes melting of thefusible element(s), when the fuse is applied at the maximumambient temperature specified by the manufacturer.

4 It is able to interrupt any normal 60 cycle current that will melt its Purpose- defined by ANSI as a fuse capableof interrupting all currents from the maximum rated interruptingcurrent down to the current that causes melting of the fusible element in one hour. Not all currents fall within this range. It ispossible to receive an overcurrent lower than the value given bythe one hour - defined by ANSI as a fuse capable of inter-rupting all currents from the maximum rated interrupting currentdown to the rated minimum interrupting current. The minimumrated interrupting current is the lowest current that the fuse willbe able to clear properly. This creates a need to place a low current interrupting device in series with the back-up rated Medium Voltage Fuses: ECL155 For Transformer and feeder protection kV - ECL155 SeriesForm No.

5 ECL155 Page 2 of 4 Data Sheet: 9004 Bussmann Figure 3 Figure 2 Figure 13-03-04SB03153E-Rated Medium Voltage Fuses: ECL155 For Transformer and feeder protection kV - Time-Current & Peak Let-Through DataForm Page 3 of 4 Data Sheet: 9004 Bussmann Time-Current Characteristics - Minimum MeltTime-Current Characteristics - Total ClearMax. Peak Let-Through Current Curves3-03-04SB03153 Bussmann E-Rated Medium Voltage Fuses: ECL155 For Transformer and feeder protection kV - Time-Current & Peak Let-Through DataForm Page 4 of 4 Data Sheet: 9004 Time-Current Characteristics - Minimum MeltTime-Current Characteristics - Total ClearMax. Peak Let-Through Current Curves3-03-04SB03153