KLKR004 - KLKR Series Class CC Fuse for Electrical Protection

The KLKR004 fuse from the Littelfuse KLKR Series is a fast-acting Class CC fuse designed for general-purpose branch circuit protection. It is ideal for OEM equipment, control panels, and lighting solutions requiring fast overload response and current-limiting characteristics. This fuse is suitable for protecting solid-state devices such as SCRs and other electronic equipment that demand rapid response to overloads. As a product from a reputable electrical distributor and switchgear supplier, it supports reliable circuit protection in compact applications.

Specifications

• Amperage Rating: 4 A
• Voltage Rating: 600 V AC, 300 V DC
• Interrupting Rating: 200 kA AC rms symmetrical, 20 kA DC (Littelfuse self-certified)
• Material: Body - melamine; Caps - nickel-plated bronze
• Fuse Weight: 0.034 lb (15.42 g)
• Applicable Standards: UL 248-4, Class CC
• Environmental Compliance: RoHS Compliant
• Country of Origin: Mexico
• Certifications: UL Listed (File: E81895), CSA Certified (File: LR29862), CE Declaration of Conformity, RoHS 2 Directive compliant

Features

• Fast-acting fuse providing rapid overload protection for sensitive equipment
• Current-limiting design reduces damage from heating and magnetic effects during short-circuit events
• Rejection capability prevents substitution with lower rated fuses, ensuring appropriate protection
• Compact size saves panel space while delivering superior branch circuit protection
• Approved for branch circuit protection with 200,000 A interrupting rating at 600 V AC

Downloads & Links

• KLKR Series Datasheet
• UL JDDZ E81895
• KLKR_Series pdf
• CE KLKR Series
• ICPTest_KLKR_new pdf
• ChinaRoHS_KLKR pdf
• ICPTest_KLKR 10 22 2012 pdf
• CSA 1422-02 029862