Mersen A4BY300 - Class L Fuse 300A (200kA@600V Interrupting Capacity)

Mersen A4BY300 is a low-voltage current-limiting fuse from the AKR Series designed for industrial circuit protection up to 600V AC systems. This Class L fuse features a 300A current rating and 200kA interrupting capacity at 600V, housed in a durable 2-inch diameter single-barrel construction with a 2 lb weight. The fuse meets industry standards for high-performance protection in demanding environments, commonly used in motor control centers, switchgear, and power distribution panels where reliable short-circuit interruption is critical.

Key Features & Specifications

• Type: Current-limiting low-voltage fuse (Class L), single-barrel design
• Voltage Rating: 600V AC
• Current Rating: 300A
• Dimensions: 2" diameter
• Standards: UL/CSA certified
• Applications: Motor protection, switchgear, industrial power distribution
• AIC rating: 200kA @ 600V
• Class Rating: L
• Weight: 2 lb

Product Identification

• UPC: 782001939021
• GTIN: 00782001939021