Mersen, formerly Ferraz Shawmut A4BT Catalog Page

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A4BT TIME DELAY/CLASS L
WHEN YOUR heavier loads NEED PROTECTION A4BT FUSES WON’T LET YOU DOWN
The high interrupting rating of A4BT current limiting fuses is ideally suited for protecting mains, feeders, and general circuits. The 10-sec­ond time delay at 500% of fuse rating is ideal for large motors and other loads with a high inrush. A4BT fuses are suitable for DC applications up to 500VDC. An A4BT fuse can be applied to normal loads up to its full ampere rating to allow 100% rating of equipment.
HIGHLIGHTS:
Current-Limiting
Full 10-Second Delay
DC Ratings
➤ ➤
Uniform Characteristics in all Ampere Ratings
APPLICATIONS:
Motors
Motor Controllers
Transformers
Mains
Feeders
Features/ Benefits
Unique dimensions prevent replacement by other fuse
classes. Blade-stamped catalog numbers for permanent
identification Glass melamine body and plated terminals
provide superior reliability in harsh environments
Ratings
AC: 200 to 2,000A
600VAC, 200kA I.R.
DC: 200 to 2,000A
500VDC, 100kA I.R.
Approvals
UL Listed to Standard 248-10 (601-2000A) File E2137
CSA Certified to Standard C22.2 No. 248.10 (601-2000A)
Ferraz Shawmut Certified
for DC per UL248 (601-2000A)
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TIME DELAY/CLASS L FUSES A4BT
Standard Fuse Ampere Ratings, Catalog Numbers
AMPERE CATALOG AMPERE CATALOG AMPERE CATALOG
RATING NUMBER RATING NUMBER RATING NUMBER
200 A4BT200 601 A4BT601 1100 A4BT1100 250 A4BT250 650 A4BT650 1200 A4BT1200 300 A4BT300 700 A4BT700 1400 A4BT1400 350 A4BT350 750 A4BT750 1500 A4BT1500 400 A4BT400 800 A4BT800 1600 A4BT1600 450 A4BT450 900 A4BT900 1800 A4BT1800 500 A4BT500 1000 A4BT1000 2000 A4BT2000 600 A4BT600
B
200-800A
801-2000A
Dimensions
AMPERE A B C D E RATING In. mm In. mm In. mm In. mm In. mm
200-600* 8-5/8 219 2 51 5/16 8 1-5/8 41 2-13/32 61 601-800 8-5/8 219 2-1/2 63 3/8 9 2 51 2-13/32 61 801-1200 10-3/4 273 2-1/2 63 3/8 9 2 51 3-15/32 88 1201-1600 10-3/4 273 3 76 7/16 11 2-3/8 60 3-15/32 88 1601-2000 10-3/4 273 3-1/2 89 1/2 13 2-3/4 70 3-15/32 88
Safety Note: Class L fuses are dimensioned for one-way interchangeability. A Class L fuse of any lower ampere rating can be substituted for a given Class L fuse.
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