Littelfuse FLSR01.8 Class RK5 Fuse 1.8A 600VAC 300VDC Slo-Blo

This Littelfuse FLSR Series component stands out as an essential solution for a variety of industrial applications, adeptly serving general-purpose circuits, motor control centers, and switchboard switches. With its unique Slo-Blo or Time Lag design, it offers a time delay feature that allows for controlled interruptions, enhancing the protection of your electrical systems. Capable of handling astonishing overcurrent interruptions of up to 200,000 amperes, it ensures reliability in the most demanding environments while accurately responding to overloads and short circuits thanks to its precision-manufactured components. Designed specifically for robust applications like distribution panelboards and service entrance switches, the series integrates seamlessly into fused combination motor controllers, safeguarding fully-rated panelboards and load centers. With a voltage tolerance of 600 VAC and 300 VDC, this model exemplifies durability and efficiency, making it a critical element for those who prioritize safety and performance in their electrical systems.

• UL Listed, CSA Certified, and QPL WF-1814 compliant for reliable safety assurance
• Dual-element construction for advanced short circuit and overload protection
• Time delay Slo-Blo design for controlled interruptions
• High interrupting rating up to 200,000 A AC rms symmetrical
• Rated for 600 VAC and 300 VDC operation for versatile voltage compatibility
• Accurate and reliable response to overloads and short circuits due to precision manufacturing
• Suitable for general-purpose circuits, motor control centers, and switchboard switches
• Designed for use in fused combination motor controllers and distribution panelboards
• Protects fully-rated panelboards, load centers, and service entrance switches
• Faster acting short circuit protection than any non-current limiting mechanical protective device

• Voltage: 600 V AC, 300 V DC
• Ampere Rating: 1.8 A
• Interrupting Rating: 20,000 A @ 300 V DC, 200,000 A AC rms symmetrical
• Opening: Slo-Blo/Time Lag/Time Delay
• Fuse Type: Dual Element, Time Delay
• Material: Industrial Cartridge
• Approvals: UL Listed, CSA Certified, QPL WF-1814

Certification

Datasheets