Cut Sheet

E 36 E 36
AMP-TRAP
®
A240T/A480T/A500T/A720T POTENTIAL TRANSFORMER FUSES
APPLICATIONS:
Primary protection for
2.4, 4.8, 5.0 or 7.2kV
potential transformers
➤
A240T
AC: 1/2E to 5E
2400VAC, 50kA I.R. Sym.
A48OT
AC: 1/2E to 5E 4800VAC,
50kA I.R. Sym.
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Ratings
A500T
AC: 1/2E to 5E
5000VAC, 50kA I.R. Sym.
A720T
AC: 1/2E to 3E
7200VAC, 50kA I.R. Sym.
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Features/Benefits
Current limiting protection for transformers
Ferrule mounting for ease of installation in standard-
clips
Compact size saves valuable mounting space
Fiberglass melamine body provides dimensional
stability in harsh industrial environments
Metal embossed catalog number
for lasting
identification
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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 5.0kV. At 7.2kV ratings are 1/2E to 3E.
HIGHLIGHTS:
‰E-Rated
‰Current-Limiting
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 E RATING CATALOG NUMBER
2400V 4800V 5000V 7200V
 1/2E A240T1/2E A480T1/2E A500T1/2E-1 A720T12E-1
1E A240T1E A480T1E A500T1E-1 A720T1E-1
2E A240T2E A480T2E A500T 2E-1 A720T2E-1
3E - A480T3E A500T3E-1 A720T3E-1
4E - A480T4E A500T 4E-1 -
5E A240T5E A480T5E A500T5E-1 -
Standard Fuse Ampere Ratings, Catalog Numbers
CATALOG NO. DIMENSIONS - inches (mm) FUSE CLIPS*
PREFIX A B C CENTERS CAT. NO.
 A240T 4-5/8(117) 13/16(20.6) 5/8(15.9) 4.0”(102) CO8917P
A480T 5-5/8(143) 13/16(20.6) 5/8(15.9) 5.0”(127) CO8917P
A500T 5-5/8(143) 1(25.4) 9/16(12) 5.0”(127) -
A720T 9-1/2(241) 13/16(20.6) 5/8(15.9) 8.88”(225) CO8917P
Dimensions
*Use 2 clips per fuse.
Gross Automation [phone] · www.ferrazshawmutsales.com · [e-mail]