Littelfuse KLDR-07.5 - Medium Voltage Current-Limiting Fuse 7.5A 5.5kV (50kA Interrupt Rating)

Littelfuse KLDR-07.5 is a medium voltage current-limiting fuse designed for circuit protection in industrial power distribution systems. Rated for 7.5A at 5.5kV AC, it provides reliable overcurrent protection with a compact cylindrical design featuring silver-sand filler and ceramic body construction. The fuse meets IEEE C37.41 standards and carries UL/CSA certifications, making it suitable for transformer protection, capacitor banks, and medium voltage switchgear applications up to 38kV systems.

Key Features & Specifications

• Type: Current-limiting medium voltage fuse with silver-sand element in ceramic body
• Voltage Rating: 5.5kV AC (38kV system voltage)
• Current Rating: 7.5A
• Dimensions: 108mm length x 38mm diameter
• Standards: IEEE C37.41, UL/CSA certified
• Applications: Transformer protection, capacitor banks, medium voltage switchgear
• Interrupting Rating: 50kA symmetrical
• Fuse Class: K-Link (current-limiting)
• Operating Temperature: -40°C to +85°C
• Mounting: Horizontal/vertical with standard end caps

Product Identification

• Manufacturer Part Number: KLDR-07.5