Littelfuse JLS045 45 Amp Class J Fast-Acting Cartridge Fuse 600V

The Littelfuse JLS045 is a UL Class J fast-acting cartridge fuse designed for reliable overcurrent protection in commercial and industrial electrical systems. This high-performance fuse features a 45 amp rating with 600 VAC voltage capacity and an impressive 200,000 amp interrupting rating (RMS symmetrical), making it ideal for demanding applications requiring rapid short-circuit protection.

Key Specifications:

• Current Rating: 45 amperes
• Voltage Rating: 600 VAC
• Interrupting Rating: 200,000 amps (RMS symmetrical)
• Fuse Type: Class J, Fast-Acting
• Dimensions: 1-1/16 inch diameter x 2-3/8 inch length
• Terminal Type: Ferrule terminals
• Construction: Cartridge-style body

Applications and Benefits:

• General purpose circuits with minimal or no motor loads
• Resistive loads such as electric resistance heating
• Equipment with solid-state devices requiring fast-acting protection
• Space-saving design for compact installations

Certifications: UL Listed (UL 248-8), CSA Certified, CE marked, and QPL-W-F-1814 approved. This fuse meets North American electrical standards and is suitable for commercial and industrial applications. Cross-reference part number 486J45.

Note: For motor or inductive load applications, a higher ampere rating may be required to prevent nuisance opening from inrush currents. Consider Littelfuse JTD series time-delay fuses for such applications.