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A4BT / Class L / 10-Second Time Delay

When your heavier loads need protection, Ferraz 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.

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Brochure
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Features

  • 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

Highlights

  • Current-limiting
  • Full 10-second time delay
  • DC ratings
  • Uniform characteristics in all ampere ratings
Ratings
  • AC: 600VAC, 200kA I.R.
  • AC: 500VDC, 100kA I.R.
    (Ferraz Shawmut Certified)
Approvals
  • UL Listed to Standard 248-10
  • CSA Certified to Standard C22.2 No. 248.10
  • DC Tested to UL 198L limits (Ferraz Shawmut Certified)
  • Some ratings RoHS Compliant
Applications
  • Motors
  • Motor Controllers
  • Transformers
  • Mains
  • Feeders

Ferraz A4BT Series Fuse Selection

AMPERE RATING CATALOG NUMBER   AMPERE RATING CATALOG NUMBER   AMPERE RATING CATALOG NUMBER   AMPERE RATING CATALOG NUMBER
200 A4BT200   500 A4BT500   800 A4BT800   1500 A4BT1500
250 A4BT250   600 A4BT600   900 A4BT900   1600 A4BT1600
300 A4BT300   601 A4BT601   1000 A4BT1000   1800 A4BT1800
350 A4BT350   650 A4BT650   1100 A4BT1100   2000 A4BT2000
400 A4BT400   700 A4BT700   1200 A4BT1200      
450 A4BT450   750 A4BT750   1400 A4BT1400      
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