Bussmann KTU-4000 - Class L Current-Limiting Fuse 4000A (200kA AIC @600V)

Bussmann KTU-4000 is a Class L low-voltage current-limiting fuse from the LIMITRON family designed for high-amperage circuit protection in industrial power distribution systems. It features a 600V AC voltage rating with a 4000A current rating and provides 200kA interrupting capacity at 600V for reliable fault protection. The fuse measures 7 inches in length with a 5.75-inch diameter and utilizes a single-barrel bolt-in connection design for secure installation. This fuse complies with industry standards for Class L fuses and is typically employed in service entrance equipment, switchboards, and motor control centers where high fault current protection is required.

Key Features & Specifications

• Type: Class L current-limiting fuse, single barrel, bolt-in connection
• Voltage Rating: 600V AC
• Current Rating: 4000A
• Dimensions: 7" L × 7" W × 11" H
• Diameter: 5.75 inches
• Weight: 30 lb
• Standards: Class L fuse specifications
• Applications: Industrial power distribution, service entrance equipment, switchboards, motor control centers
• AIC Rating: 200kA @ 600V
• Connection: Bolt-In
• Barrels: 1
• Class Rating: L
• Family: LIMITRON

Product Identification

• UPC: 051712613408
• GTIN: 00051712613408