Mersen A4BY450 - Class L Fuse 450A@600V (200kA AIC)

Mersen A4BY450 is a low-voltage current-limiting fuse designed for high-interrupting capacity circuit protection in industrial power distribution systems. This UL/CSA-certified Class L fuse features a 600V AC rating with a 450A current capacity and 200kA interrupting rating at 600V, housed in a durable 2-inch diameter single-barrel construction weighing 3 lb. Engineered to meet stringent safety standards, the AKR series fuse provides reliable short-circuit protection for motor control centers, switchgear, and other heavy-duty electrical equipment requiring robust overcurrent safeguards.

Key Features & Specifications

• Type: Current-limiting Class L fuse with silver-sand construction
• Voltage Rating: 600V AC
• Current Rating: 450A
• Dimensions: 2" diameter single-barrel design
• Standards: UL 248-12, CSA C22.2 No. 248.12
• Applications: Industrial switchgear, MCCs, power distribution panels
• AIC rating: 200kA@600V
• Class Rating: L
• Weight: 3 lb
• Certification: UL Recognized, CSA Certified

Product Identification

• GTIN: 00782001938994