The JLLN125 is a current-limiting Class L fuse manufactured by Littelfuse. Class L fuses are heavy-duty fuses designed to protect electrical systems from overcurrent and short-circuit conditions. They are commonly used in industrial and commercial applications where high fault currents are possible.

Applications

• Main service entrance protection
• Feeder protection
• Branch circuit protection
• Industrial control panels
• Motor protection
• HVAC systems
• Power distribution equipment

Features

• 125 Ampere current rating
• 600VAC voltage rating
• Class L fuse type
• High interrupting rating (e.g., 200kA)
• Time-delay characteristics
• Bolted connection

Benefits

• Superior overcurrent protection
• Safe and reliable operation
• Reduced equipment damage
• Minimized downtime
• Compliance with electrical codes

Additional Details

The Littelfuse JLLN125 Class L fuse is designed to provide robust protection against overcurrents and short circuits in electrical systems. Its high interrupting rating ensures that it can safely interrupt very high fault currents without failing or causing damage to other equipment. The time-delay characteristics allow for temporary overloads, such as motor starting currents, without nuisance tripping. This helps to maintain system uptime and prevent unnecessary interruptions.

Class L fuses are typically bolted into fuse holders or disconnect switches to ensure a secure and reliable connection. The JLLN125 is designed to meet UL and CSA standards for Class L fuses. It is important to select the appropriate fuse size and type for each application to ensure proper protection and compliance with electrical codes. Refer to the Littelfuse datasheet for detailed specifications and application information.