Mersen A4BY800-55BA - Low Voltage Fuse 800A (600V AC Current-Limiting)

Mersen A4BY800-55BA is a low-voltage current-limiting fuse from the Amp-Trap family, designed for robust circuit protection in industrial power distribution systems. It features a 600V AC rating and 800A current capacity, housed in a durable 4 lb ceramic body with precision-engineered silver alloy elements for rapid fault interruption. The fuse complies with UL/CSA standards for safety and reliability in demanding environments. Typical applications include motor control centers, switchgear, and transformer protection where high short-circuit currents are present.

Key Features & Specifications

• Type: A4BY current-limiting fuse with ceramic housing and silver alloy elements
• Voltage Rating: 600V AC
• Current Rating: 800A
• Dimensions: Standard A4BY frame size (55mm width)
• Standards: UL/CSA certified
• Applications: Industrial power distribution, MCCs, switchgear, transformer protection
• Weight: 4 lb
• Family: Amp-Trap

Product Identification

• UPC: 782001938505
• GTIN: 00782001938505