Medium Voltage Fuses
E-rated fuses: CL-14 & bolt-In
ECL055 & EBI055
Specifications
Description:
E-rated medium voltage, current-limiting fuses
for transformer and feeder protection.
Construction:
Filament wound, glass epoxy fuse tube, with
silica filler, and silver-plated copper terminals and endcaps
containing a silver element in a double concentric helical
configuration.
Ratings:
Volts: — 5.5 kV
Amps: — 10-900A
IR: — 63kA Sym. Max
Agency Information:
Meets E requirements per ANSI
C37.46, Meets General Purpose requirements per ANSI
C37.40.
Features and Benefits
• Clip-lock and bolt-in style available in double and triple barrel
fuse designs for application flexibility
• The filament wound, glass epoxy fuse tube provides UV and
moisture protection, making these medium voltage fuses
suitable for both indoor and outdoor applications
• Open fuse indication (indicator travel distance is 16mm)
easily integrates into automation schemes
• 50/60 Hz operating frequency make these fuses applicable
world-wide
Typical Applications
• 5.0 kV Transformer Primary Protection
• 5.0 kV Feeder Circuit Protection
• 5.0 kV Voltage Switches
• 5.0 kV Metal-enclosed Switchgear
Current-limiting medium voltage fuses are
classified into three categories:
1. Full Range - defined by ANSI as “a fuse capable of
interrupting all currents from the maximum rated interrupting
current down to the minimum continuous current that causes
melting of the fusible element(s), when the fuse is applied at
the maximum ambient temperature specified by the
manufacturer.” It is able to interrupt any normal 60 cycle
current that will melt its element.
2. General Purpose - defined by ANSI C37.40 as “a fuse
capable of interrupting all currents from the maximum rated
interrupting current down to the current that causes melting of
the fusible element in one hour.” Not all currents fall within
this range. It is possible to receive an overcurrent lower than
the value given by the one hour criterion.
3. Back-up - defined by ANSI C37.40 as “a fuse capable of
interrupting all currents from the maximum rated interrupting
current down to the rated minimum interrupting current.” The
minimum rated interrupting current is the lowest current that
the fuse will be able to clear properly. This creates a need to
place a low current interrupting device in series with the
back-up rated fuse.
Catalog Numbers
Catalog
Numbers
ECL055-10E
ECL055-15E
ECL055-20E
ECL055-25E
ECL055-30E
ECL055-40E
ECL055-50E
ECL055-65E
ECL055-80E
ECL055-100E
ECL055-125E
ECL055-150E
ECL055-200E
ECL055-250E
ECL055-300E
ECL055-400E
ECL055-450E
ECL055-500E
ECL055-600E
EBI055-750E
EBI055-900E
Amp
Rating
10
15
20
25
30
40
50
65
80
100
125
150
200
250
300
400
450
500
600
750
900
Voltage
5.5kV
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
IR
Max Sym.
63kA
# of
Barrels
1
Style
Clip-Lock
Medium
Voltage
Fuses
1
Clip-Lock
63kA
2
2
Clip-Lock
3
3
Bolt-In
Bolt-In
Catalog Number Construction (Example)
Catalog Number Voltage Rating
Ampere Rating
ECL
055
500E
055 = 5.5 kV
Catalog Number Cross Reference
Cooper Bussmann
Catalog Numbers
ECL055-10E
ECL055-15E
ECL055-20E
ECL055-25E
ECL055-30E
ECL055-40E
ECL055-50E
ECL055-65E
ECL055-80E
ECL055-100E
ECL055-125E
ECL055-150E
ECL055-200E
ECL055-250E
ECL055-300E
ECL055-400E
ECL055-450E
ECL055-500E
ECL055-600E
ECL055-750E
ECL055-900E
Ferraz-Shawmut
New Catalog #
A055C1DORO-10E
A055C1DORO-15E
A055C1DORO-20E
A055C1DORO-25E
A055C1DORO-30E
A055C1DORO-40E
A055C1DORO-50E
A055C1DORO-65E
A055C1DORO-80E
A055C1DORO-100E
A055C1DORO-125E
A055C1DORO-150E
A055C1DORO-200E
A055C1DORO-250E
A055C1DORO-300E
A055C1DORO-400E
A055C2DORO-450E
A055C2DORO-500E
A055C2DORO-600E
A055B3DORO-750E
A055B3DORO-900E
Ferraz-Shawmut
Old Catalog #
225-007-937
225-007-938
225-007-939
225-007-940
225-007-941
225-007-942
225-007-943
225-007-944
225-007-945
225-007-946
225-007-947
225-007-948
225-007-949
225-007-950
225-007-951
225-007-952
225-007-953
225-007-954
225-007-955
A055X750E-4
A055X900E-4
Data Sheet: 9002
For product Data Sheets, visit www.cooperbussmann.com/products/datasheet.asp
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