Medium voltage fuses
Medium voltage fuses
American Fuses
Potential Transformer Fuses (E-Rated)
2.4kV to 7.2 kV - A240T / A480T / A500 / A072T
POTENTIAL TRANSFORMER FUSES
Ferraz Shawmut E-rated PT fuses are current limiting fuses
with high interrupting rating, used for primary winding-
protection of potential transformers. They are small
dimension, ferrule-type fuses and mounted in standard
clips. Ratings are 1/2E to 5E at 2.4, 4.8, and 5.0 kV at
7,2kV rating are 1/2E to 3E
Features /Benefits Highlights
• Current limiting protection for transformers • E-Rated
• Ferrule mounting for ease of installation in • Current-Limiting
standard clips
• Compact size saves valuable mounting space Applications
• Fiberglass body provides dimensional stability in Primary protection for 2.4, 4.8, 5.0 or 7.2kV
harsh industrial environments potential transformer
• Metal embossed catalog number for lasting
identification
Ratings
A240T A500T
AC: 1/2E to 5E AC: 1/2E to 5E
2400VAC, 50kA I.R. Sym. 5000VAC, 50kA I.R. Sym.
A48OT A720T
AC: 1/2E to 5E AC: 1E to 3E
4800VAC, 50kA I.R. Sym. 7200VAC, 50kA I.R. Sym.
Dimensions
Catalog Number Dimensions - inches Fuse Clips*
Prefix A B C Centers Cat. NO.
A240T 4-5/8 13/16 5/8 4.0” CO8917P
A480T 5-5/8 13/16 5/8 5.0” CO8917P
A500T 5-5/8 1 9/16 5.0” -
A720T 9-1/2 13/16 5/8 8.88” CO8917P
Standard Fuse Ampere Ratings, Catalog and Reference Numbers
E-Rating Catalog Number Reference Number
2400V 4800V 5000V 7200V 2400V 4800V 5000V 7200V
1/2E A240T1/2E A480T1/2E A500T1/2E-1 A720T1/2E-1 P212855 C215397 S218470 Z203710
1E A240T1E A480T1E A500T1E-1 A720T1E-1 P213867 D215904 D219515 E211305
2E A240T2E A480T2E A500T2E-1 A720T2E-1 A214383 H216414 X221970 P211820
3E - A480T3E A500T3E-1 A720T3E-1 - Q216927 G222715 C212338
4E - A480T4E A500T4E-1 - - C217444 W223234 -
5E A240T5E A480T5E A500T5E-1 - Y214887 M217959 W201568 -
MV71 12/04
This datasheet has been downloaded from http://www.digchip.com at this page
Medium
Medium voltagevoltage
fuses fuses
American Fuses
Potential Transformer Fuses (E-Rated)
2.4kV to 7.2 kV - A240T / A480T / A500 / A072T
A240T1/2E to 5E
MELTING TIME – CURRENT DATA - PT FUSES - 2400V
A480T1/2E to 5E
MELTING TIME – CURRENT DATA - PT FUSES - 4800V
TIME IN SECONDS
TIME IN SECONDS
CURRENT IN AMPERES
CURRENT IN AMPERES
12/04 MV72
Medium voltage fuses
Medium voltage fuses
American Fuses
Potential Transformer Fuses (E-Rated)
2.4kV to 7.2 kV - A240T / A480T / A500 / A072T
A500T1/2E-1 to 5E-1 Melting Time
Current Data - PT Fuses - 5000V
A720T1E-1 and A720T2E-1
Melting Time – Current Data
TIME IN SECONDS
PT Fuses - 7200V
TIME IN SECONDS
CURRENT IN AMPERES
CURRENT IN AMPERES
MV73 12/04
Medium
Medium voltagevoltage
fuses fuses
12/04 MV74
