®
Bussmann
E-Rated Medium Voltage Fuses: BoElBtI-0In55&& CECLL-01545
For Transformer and Feeder Protection
5.5 kV
CATALOG SYMBOL: ECL055 & EBI055
E-RATED MEDIUM VOLTAGE FUSES:
Meets E requirements per ANSI C37.46
Meets General Purpose requirements per ANSI C37.40
FOR TRANSFORMER AND FEEDER PROTECTION
VOLTAGE RATING: 5.5 KV
INTERRUPTING RATING: 63KA Maximum Sym.
CURRENT LIMITING
CONSTRUCTION:
• Silver element in a double concentric helical configuration
Electrical Characteristics
Bussmann
Ampere
IR
# of
• Silica filler
Number
Rating
Voltage
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
5.5kV
Max Sym.
Barrels
Figure #
Style
• Silver plated copper terminals and endcaps
• Filament wound, glass epoxy fuse tube
FEATURES:
•General Purpose Fuses. Bussmann’s medium voltage fuses
provide general purpose protection and are capable of interrupt-
ing fault currents up to 63,000A RMS sym.
•Clip-lock and bolt-in style available in double and triple
barrel fuse designs.
•Indoor and Outdoor Usage. The filament wound, glass epoxy
fuse tube provides UV and moisture protection for the fuse. This
makes Bussmann’s medium voltage fuses suitable for both
indoor and outdoor applications.
•Open Fuse Indication. Indicator travel distance is 16mm.
• Operating Frequency: 50/60 Hz
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
10E
15E
20E
25E
30E
40E
50E
65E
80E
100E
125E
150E
200E
250E
300E
400E
450E
500E
600E
750E
900E
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
63kA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
3
3
1
1
1
1
1
1
1
1
1
1
1
1
2
2
3
3
3
3
3
4
4
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Clip-Lock
Bolt-In
• Dimensional Data:
see pages 2-3.
Bolt-In
• Performance Curves. see pages 4-7.
Part Number Construction
Catalog Symbol
Voltage Rating
055
Ampere Rating
Example
ECL
500E
Current-limiting medium voltage fuses are classified
into three categories:
055 = 5.5 kV
Catalog Number Cross Reference
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.
Ferraz-Shawmut
New Catalog #
Ferraz-Shawmut
Bussmann
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
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
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
AO55B3DORO-750E
AO55B3DORO-900E
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.
Back-up - defined by ANSI C37.40 as “a fuse capable of inter-
rupting 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.
Form No. ECL055
Page 1 of 7
Data Sheet: 9002
SB01488
3-03-04
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