Mersen, formerly Ferraz Shawmut A4J Catalog Page
AMP-TRAP
®
A4J
FAST ACTING/CLASS J
FOR excellent CURRENT LIMITING
PROTECTION
A4J Class J fuses deliver excellent current-limiting
protection to a wide variety of applications. Their
unique dimensions prevent the substitution of other
fuses with lower voltage ratings, interrupting ratings,
or current-limiting capability.
Features/Benefits
High current limitation for low peak let-thru current
➤
Unique dimensions prevent replacement by other fuse
➤
classes
Fiberglass body provides dimensional stability in
➤
harsh industrial environments
Easy-to-read imprint label for quick recognition
➤
and replacement
HIGHLIGHTS:
Fast Acting
➤
Very Current-Limiting
➤
DC Ratings
➤
APPLICATIONS:
Capacitors
➤
Loadcenters
➤
Panelboards
➤
Switchboards
➤
Bus Duct
➤
Feeder Circuits
➤
Circuit Breakers
➤
Lighting, Heating, and
➤
General Loads
B 14
Ratings
AC: 1 to 600A
➤
600VAC, 200kA I.R.
DC: 1 to 600A
➤
300VDC, 100kA I.R.
Approvals
UL Listed to
➤
Standard 248-8
File E2137
CSA Certified to
➤
Standard C22.2
No. 248.8
DC Listed to UL 248
➤
IEC 269-2-1
➤
AMP-TRAP
®
FAST ACTING/CLASS J FUSES
Standard Fuse Ampere Ratings, Catalog Numbers
AMPERE CATALOG AMPERE CATALOG AMPERE CATALOG
RATING NUMBER RATING NUMBER RATING NUMBER
1 A4J1 50 A4J50 200 A4J200
3 A4J3 60 A4J60 225 A4J225
6 A4J6 70 A4J70 250 A4J250
10 A4J10 75 A4J75 300 A4J300
15 A4J15 80 A4J80 350 A4J350
20 A4J20 90 A4J90 400 A4J400
25 A4J25 100 A4J100 450 A4J450
30 A4J30 110 A4J110 500 A4J500
35 A4J35 125 A4J125 600 A4J600
40 A4J40 150 A4J150
45 A4J45 175 A4J175
A4J
B
Recommended Fuse Blocks
With Box Connectors for
Amp-trap Class J Fuses
Fuse Catalog Number
1-60A
61-600A
Ampere 600V OR LESS
Rating 1 Pole 3 pole
0-30 US3J1I US3J3I
31-60 US6J1I US6J3I
61-100 61036J 61038J
101-200 62001J 62003J
201-400 64031J 64033J
401-600 6631J 6633J
A variety of pole configurations and termination provisions are available. Refer to the
fuse block section of this catalog for details.
Dimensions
AMPERE A B C D E F G H
RATING In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm
1-30 2-1/4 57 13/16 21 - - - - - - - - - - - 31-60 2-3/8 60 1-1/16 27 - - - - - - - - - - - 61-100 4-5/8 117 1-1/8 29 1/8 3.2 3/4 19 1 25 3-5/8 92 3/8 10 9/32 7
101-200 5-3/4 146 1-5/8 41 3/16 4.8 1-1/8 29 1-3/8 35 4-3/8 111 3/8 10 9/32 7
201-400 7-1/8 181 2-1/8 54 1/4 6.3 1-5/8 41 1-7/8 48 5-1/4 133 17/32 13 13/32 10
401-600 8 203 2-1/2 64 3/8 9.5 2 51 2-1/8 54 6 152 11/16 18 17/32 13
B 15
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