$1,640.98 per piece


Brand / Manufacturer: MERSEN (FERRAZ SHAWMUT)

Amperage Rating: 801

Voltage: 600

UPC: 0782001939120

Department: 16

Series: A4BY

Catalog Number: A4BY801

Catalog / Class: L

Speed: Time-Delay

SKU: A4BY801

Categories: , , ,

*Prices Subject to Change


801A 600V TD L

Amp-Trap A4BY fuses have been the industry’s favorite when it comes to protecting service entrance equipment, feeder circuits, and circuit breakers. The A4BY is a 100percent rated device and may be applied at continuous currents up to its ampere rating. A 4-second minimum time delay at 500percent rating allows the A4BY to pass normal current surges and to coordinate with ground fault relays.

  • 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

Less specifications


  • Mains
  • Feeders
  • Circuit Breakers
  • Load centers
  • Panelboards
  • Switchboards
  • Metering Centers