AMP-TRAP
®
CS-3 SERIES
E-RATED/MEDIUM
VOLTAGE FUSES
5kV, 8kV and 15.5kV FERRULE
MOUnTED FUSES
Amp-trap
®
CS-3 E-rated 5kV 8kV and 15kV fuses
have 2 or 3 inch diameter barrels with ferrules and
are mounted in spring reinforced clips. They are UL
listed as “general purpose current-limiting fuses” and
are for use indoors (or outdoors in a weatherproof
enclosure). The unique time-current characteristic
of Ferraz Shawmut E-rated fuses allows them to be
closely sized to transformer full-load rated current,
as recommended by IEEE guidelines, without being
affected by normal magnetizing inrush current. CS-3
fuses are typically sized at transformer rated current
of 133%, thereby providing superior overall
protection.
Features/Benefits
➤
UL Listed
for compatiblity with UL listed equipment
➤
Ferrule mounting
for standard clips and
interchangeability with other brands of fuses
➤
Current Limiting
for superior equipment protection
➤
Blown-fuse indicator
gives positive identification
of open fuse
➤
non-venting
for silent operation
➤
Metal Embossed Catalog number
and
manufacturing date for lasting identification
HIGHLIGHTS:
➤
E-Rated
➤
UL Listed 5.5kV and15.5kV
➤
Complies with ANSI C37.46
APPLICATIOnS:
➤
Protection for 5.5,
8.25
➤
or 15.5kV transformers
or distribution system.
Ratings
Approvals
➤
UL Listed to JEEG,
“Fuses Over 600 Volts”
UL File # E143362
DEFInITIOnS:
E-rating
E-rated fuses operate as follows:
100E or less - must melt in 300 seconds (5 mins.)
at 200 to 240% of E (ampere) rating.
Over 100E - must melt in 600 seconds (10 mins.)
at 220 to 264% of E (ampere) rating.
Example - A 100E fuse must melt in 300 seconds with an
applied current of 200 to 240 amperes.
General Purpose Current-Limiting Fuse
A general purpose current-limiting power fuse is one that
is capable of interrupting all currents from its rated inter-
rupting rating down to the current that causes melting of
the fusible element in one hour.
E
➤
A055F
AC:
5E to 450E
5.5kV, 63kA I.R. Sym.
➤
A825X
AC:
10E to 200E
8.25kV, 50kA I.R. Sym.
➤
A155F
AC:
5E TO 200E
15.5kV, 50kA I.R. Sym.
Spring-Reinforced Clips for CS-3 Fuses:
228-700-530 (One pair of clips)
For 3” Diameter, 2 barrels max.
AMP-TRAP
®
CS-3
E-RATED/MEDIUM
VOLTAGE FUSES/A055F
Catalog Numbering System
A
1
5 5
F
1
D
0
R 0 - 1 0 0 E
15.5kV Ferrule Mounted
Ampere Rating
Revision/No.
Special Features
Diameter (C=2”, D=3”)
No. of Barrels
Style (F=Ferrule Mount)
Max. Voltage Rating (155=15.5kV)
Amp-trap Fuse
Indicator Flush with Surface
in Untripped Position
Blown Fuse Indicator
E
Figure A
Figure B
Figure C
Catalog Numbering System, Ratings, Dimensions, CS-3 Series, 15.5kV
(mm) INTERRUPTING
NEW CATALOG
NUMBER
OLD CATALOG
NUMBER
AMPERE
RATING
NUMBER OF
BARRELS
FIG.
DIMENSIONS Inches
RATING
RMS SYM.* AMPERES
A
B
C
15.5kV Max.. – Ferrule Mounted Style – 15” (381 mm) Clip Centers – 2” (50.8mm) Barrel Diameter
A155F1CORO -
5E
7E
10E
15E
20E
25E
30E
A1550X - 5E-1B
7E-1B
10E-1B
15E-1B
20E-1B
25E-1B
30E-1B
5E
7E
10E
15E
20E
25E
30E
1
A
17.03
(433)
2.2
(56)
.19
(4.8)
Tripped
Force
1 lb.
50,000
15.5kV Max.. – Ferrule Mounted Style – 15” (381mm) Clip Centers – 3” (76.2mm) Barrel Diameter
A155F1DORO - 10E
15E
20E
25E
30E
40E
50E
A155F2DORO - 65E
80E
100E
A1550X - 10E-1F
15E-1
20E-1
25E-1
30E-1
40E-1
50E-1
65E-1
80E-1
100E-1
10E
15E
20E
25E
30E
40E
50E
65E
80E
100E
1
B
18.87
(479)
3.0
(76)
0.5
(13)
Tripped
Force
2 lbs.
50,000
2
C
15.5kV Max.. – Ferrule Mounted Style – 18” (457mm) Clip Centers – 3” (76.2mm) Barrel Diameter
A155F1DORO - 65E
80E
100E
A155F2DORO- 125E
150E
175E
200E
A1550X - 65E-1D
80E-1D
100E-1D
125E-1D
150E-1D
175E-1D
200E-1D
65E
80E
100E
125E
150E
175E
200E
1
B
21.75
(552)
3.0
(76)
0.5
(13)
Tripped
Force
2 lbs.
50,000
2
C
*
RMS ASYM. AMPERES = RMS SYM. AMPERES x 1.6
E
E
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