Littelfuse SPFJ-350 - Class J Time-Delay Fuse 350A (200kA AIC @ 600V)

Littelfuse SPFJ-350 is a Class J time-delay fuse designed for providing superior circuit protection in industrial power distribution systems. This fuse features a 600V AC voltage rating and 350A current rating with a 200,000A interrupting capacity at 600V AC, ensuring reliable protection against short-circuits and overloads. Constructed with a durable ceramic body and tin-plated copper ferrules, the fuse offers excellent thermal stability and mechanical strength for demanding environments. It complies with UL/CSA standards for Class J fuses and is recognized for use in industrial control panels and power distribution equipment. Typical applications include motor branch circuit protection, feeder circuit protection, and industrial machinery where high interrupting capacity and time-delay characteristics are required.

Key Features & Specifications

• Type: Class J time-delay fuse with ceramic body and tin-plated copper ferrules
• Voltage Rating: 600V AC
• Current Rating: 350A
• AIC Rating: 200kA @ 600V AC
• Dimensions: Standard Class J fuse dimensions
• Standards: UL/CSA certified
• Applications: Motor branch circuits, feeder circuits, industrial power distribution
• Weight: 5.19 lb
• Fuse Class: Class J
• Interrupting Rating: 200,000A
• Construction: Ceramic body with tin-plated terminals
• Operation: Time-delay characteristic