®
Bu s s m a n n
E-Ra t e d Me d iu m Vo lt a g e Fu s e s
Fo r Tra n s fo rm e r a n d Fe e d e r P ro t e c t io n
1 5 .5 k V
MV1 5 5
CATALOG SYMBOL: MV155
E-RATED MEDIUM VOLTAGE FUSES:
Meets E requirements per ANSI C37.46
Meets Full Range requirements per ANSI C37.40
FOR TRANSFORMER AND FEEDER PROTECTION
VOLTAGE RATING: 15.5 kV
INTERRUPTING RATING: 50 kA Maximum Sym.
CURRENT LIMITING
CONSTRUCTION: Silver ribbon element surrounded by
silica filler housed in a fiberglass tube and plated endcaps.
An epoxy paint protects the fuse tube from the surround-
ing environment.
Electrical Characteristics
FEATURES:
Ampere
Rating
Min/
Melt I2t
Max.
Physical Size (inches)
• Standard Clip Center Lengths and Barrel Diameters.
The new line of Bussmann 15.5 kV medium voltage fuses
have standard clip center distances of 15 or 18 inches
and barrel diameters of 2 or 3 inches which allow fuses to
retrofit exisiting hardware.
Part Numbers†
Clear I2t
Length
Dia. Clip Center Barrels
MV155F1CBX5E
MV155F1CBX7E
5A
7A
180
2900
8000
850
MV155F1CBX10E 10A
MV155F1CBX15E 15A
MV155F1CBX20E 20A
MV155F1CBX25E 25A
MV155F1CBX30E 30A
MV155F1DBX10E 10A
MV155F1DBX15E 15A
MV155F1DBX20E 20A
MV155F1DBX25E 25A
MV155F1DBX30E 30A
MV155F1DBX40E 40A
MV155F1DBX50E 50A
MV155F1DBX65E 65A
MV155F1DBX80E 80A
MV155F1DBX100E 100A
MV155F2DBX125E 125A
850
8000
2070
2370
4650
9490
850
12000
23000
31000
45000
8000
18.75
2
15
1
• Blown Fuse Indication with Indicator.
• 100% Tested for Reliability. All medium voltage fuses
2
are pulsed twice with 90% of their minimum melt I t to
guarantee undamaged elements. This test does not affect
undamaged elements. A damaged element completely
2070
2370
4650
9490
9490
13600
30700
54600
116200
123000
12000
23000
31000
45000
45000
90000
181000
270000
600000
677000
2
opens when subjected to 90% of the minimum melt I t,
allowing it to be detected by a resistance check.
• Full Range Fuses. Bussmann medium voltage fuses
provide full range protection and are capable of interrupt-
ing fault currents of 50,000A sym.
• Time Current Curves and Dimensional Data:
MV155F1CB series, see page 2;
MV155F1DB and MV155F1DC series, see page 3.
• Peak Arc Voltage Curves and Peak Let-Through
Data, see page 4.
18.75
3
15
1
MV155F2DBX150E 150A
MV155F2DBX175E 175A
MV155F2DBX200E 200A
MV155F1DCX65E 65A
MV155F1DCX80E 80A
MV155F1DCX100E 100A
MV155F2DCX125E 125A
MV155F2DCX150E 150A
MV155F2DCX175E 175A
MV155F2DCX200E 200A
218700
314700
465100
30700
1287000
1689000
2405000
181000
270000
600000
677000
1287000
1689000
2405000
18.75
21.75
21.75
3
3
3
15
18
18
2
1
2
• Fuse Clips, see page 4.
54600
116200
123000
218700
314700
465100
† To order with the optional striker pin, see Part Number Construction chart below.
Part Number Construction
Medium Voltage
Voltage Rating
Number of Barrels
Barrel Diameter
Clip Center Distance
Indication Type Ampere Rating
Example
MV
155
F
1
C
B
X
5E
055 = 5.5 kV
155 = 15.5 kV
F = Full Range
1
2
C = 2 inches
D = 3 inches
A = 12 inches
B = 15 inches
C = 18 inches
X = Indicator only
S = Striker Pin
Form No. MV155
Page 1 of 5
Data Sheet: 6701
2-26-03
SB03044