Mersen A4BY1000-55BA - A4BY Current-Limiting Fuse 600V/1000A (Class J Protection)
Mersen A4BY1000-55BA - A4BY Current-Limiting Fuse 600V/1000A (Class J Protection)

Mersen A4BY1000-55BA - A4BY Current-Limiting Fuse 600V/1000A (Class J Protection)

Ferraz Shawmut
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Mersen A4BY1000-55BA is a low-voltage current-limiting fuse from the Amp-Trap family, designed for short-circuit protection in industrial electrical systems. It features a 600V AC voltage rating and 1000A current capacity, with a compact A4BY-type construction weighing 0.15 lb for space-efficient panel mounting. The fuse meets stringent industry standards for overcurrent protection with its current-limiting design that rapidly interrupts fault currents. Typical applications include motor control centers, switchgear, and power distribution panels requiring reliable circuit protection.

Key Features & Specifications
  • Type: A4BY current-limiting fuse with silver element and ceramic body
  • Voltage Rating: 600V AC
  • Current Rating: 1000A
  • Dimensions: 55mm barrel length (standard Class J footprint)
  • Standards: UL 248-10, IEC 60269 compliant
  • Applications: Industrial switchgear, MCCs, power distribution
  • Fuse Class: J
  • Weight: 0.15 lb
  • Interrupt Rating: 200kA symmetrical
  • Construction: Ceramic body with silver element
  • Temperature Rating: -40°C to +100°C
Product Identification
  • UPC: 782001938512
  • GTIN: 00782001938512