Fuse Amp-Trap 600V 800A Time-Delay Class L, 8.63 Inch Length, 3 Inch Diameter
Mersen

Mersen A4BT800 Fuse Amp-Trap 600V 800A Time-Delay Class L, 8.63 Inch Length, 3 Inch Diameter

  • MPN: A4BT800
  • UPC: 782001939908
  • PPN: FER-A4BT800

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$444.64

/ EA

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Spec sheet

Description

The high interrupting rating of the Amp-Trap A4BT current-limiting fuses makes it suitable for protecting mains, feeders, and general circuits. The 10-second time-delay at 500 percent of fuse rating is ideal for large motors and other loads with high inrush currents. A4BT fuses can be applied to normal loads up to its full ampere rating to allow 100percent rating of equipment.

Features

  • Engineered with a true 10-second time-delay at 500% rated current, this Class L fuse absorbs intense temporary inrush currents typical of large industrial motors and transformers. This prevents unnecessary system downtime and eliminates premature, costly replacement trips caused by routine equipment startups.
  • Featuring an exceptional interrupting rating of 200kA AC and 100kA DC, the Amp-Trap series provides a robust defense against catastrophic short circuits. It limits fault currents rapidly to shield downstream feeders, service entrances, and sensitive circuit breakers from massive thermal and mechanical stress.
  • Built to standard Class L dimensions (2.5-inch diameter times 8.625-inch length) with high-conductivity blade terminals, this 800A power fuse features integrated mounting slots for a secure, bolt-on installation. Its specialized structural dimensions function as a physical rejection mechanism, ensuring no lower-rated or incorrect fuse classes can be mistakenly installed in its place.
  • Constructed with a heavy-duty glass melamine tube body and silver-plated copper contacts, this low-voltage power fuse offers superior structural integrity and corrosion resistance. It maintains optimal electrical tracking and thermal stability even when subjected to the high temperatures, moisture, and vibrational stress of severe heavy-industrial environments.

Documentation & Downloads

Specifications

Additional

Voltage
600 V AC, 500 V DC
Interrupting Rating
200 kA AC, 100 kA DC
Time Delay
10 seconds at 500% rating
Length
8.63 in
Weight
3.73 lb
Mounting
Bolted
Body Material
GMG
Compliance
UL Listed, CSA Certified, RoHS Compliant
Amperage800 A
Fuse TypeTime-Delay, Class L
Current LimitingYes
Diameter3 in
Connection TypeBlade
Connection MaterialSilver-Plated Copper
Frequency50/60 Hz
AC or DCAC/DC

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