Medium Voltage Fuses
Potential transformer fuses
AB, AM and
CAV
Ratings:
E-Rated: — See single asterisk in Basic Catalog Numbers
table
Volts: — 3.6-38kV (See Basic Catalog Numbers table)
Amps: — 2-15A (See Basic Catalog Numbers table)
IR: — 25-80kA (See Basic Catalog Numbers table)
Agency Information:
BS2692-1 and IEC60282-1
Features and Benefits
• Physically dimensioned for retrofitting in existing hardware.
• Space saving size.
Typical Applications
• Medium Voltage Potential Transformers
• Small Medium Voltage Service Transformers
Specifications
Description:
British Standard VT fuses with low current
ratings for use in voltage transformers or operating
transformers to provide isolation of the associated system in
the event of faults in the transformer circuit.
Dimensions:
See Basic Catalog Numbers table.
Basic Catalog Numbers for “AB” & “AM” Series
Basic Cat.
Numbers
ABWNA
ABCNA
ABWNA*
AMWNA*
ABWNA
ABCNA
ABCNA
ABFNA
ABGNA
ABGNA
ABGNA**
Volts
3.6kV
3.6kV
5.5kV
5.5kV
7.2kV
7.2kV
12.0kV
15.5kV
17.5kV
24.0kV
36.0kV
Amp Ratings
3.15, 6.3
3.15, 6.3, 10
0.5, 1, 2, 3, 5
0.5, 1.0, 2.0, 3.0, 4.0, 5.0
3.15, 6.3
3.15, 6.3
3.15
3.15
3.15
3.15
3.15
Type
AB
AB
AB
AM
AB
AB
AB
AB
AB
AB
AB
Dimensions - in (mm)
Length
Diameter
5.6 (142.2)
1 (25.4)
7.69 (195.3)
1 (25.4)
5.6 (142.2)
1 (25.4)
5.6 (142.2)
0.81 (20.6)
5.6 (142.2)
1 (25.4)
7.69 (195.3)
1 (25.4)
7.69 (195.3)
1 (25.4)
10.00 (254)
1 (25.4)
14.13 (358.9)
1 (25.4)
14.13 (358.9)
1 (25.4)
14.13 (358.9)
1 (25.4)
IR
50KA
50KA
50KA
50KA
45KA
45KA
45KA
32KA
35KA
25KA
31.5KA
Recommended fuse clip for 1 diameter fuses – A3354705.
Basic Catalog Numbers for “CAV” Series
Basic Cat.
Number
CAV
CAV*
CAVH*
CAV
CAV
CAV*
CAVH*
CAV
CAV
CAV
CAVH
CAV*
CAVH*
Volts
3.6kV
5.5kV
5.5kV
7.2kV
12kV
15.5kV
15.5kV
17.5kV
24kV
36kV
36kV
38kV
38kV
Amp
Ratings
2
15
0.5, 1, 2
2, 10
2
0.5, 1, 2, 3, 7
0.5, 1, 2
2, 4, 6, 10
2, 3, 4
2, 4
2
4
0.5, 1, 2
Dimensions - in (mm)
Length
Diameter
8.66 (220)
1.63 (41.4)
7.375 (187.3)
1.63 (41.4)
7.375 (187.3)
1.63 (41.4)
8.66 (220)
1.63 (41.4)
8.66 (220)
1.63 (41.4)
12.87 (326.9)
1.63 (41.4)
12.87 (326.9)
1.63 (41.4)
8.66 (220)
1.63 (41.4)
13.39 (340.1)
1.63 (41.4)
17.32 (439.9)
1.63 (41.4)
17.32 (439.9)
1.63 (41.4)
17.32 (439.9)
1.63 (41.4)
17.32 (439.9)
1.63 (41.4)
IR
50KA
50KA
50KA
40KA
40KA
80KA
80KA
40KA
40KA
40KA
40KA
40KA
40KA
Type CAVH are fitted with a striker pin for indication.
* E-Rated fuses
**For clean indoor applications only.
Catalog Number Build-A-Code
kV
Basic Catalog Number
___
_____
Amps
___
Recommended Fuse Clips: 1” dia. - A3354705, 1.63” dia. - 1A0835, .819 dia. - 1A1837
Contact Cooper Bussmann for complete specifications on Potential Transformer Fuses
82
For product Data Sheets, visit www.cooperbussmann.com/products/datasheet.asp
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