JLLN100 - 100 Amp Fuse

JLLN100 - 100 Amp Fuse

The Littelfuse JLLN100 is a reliable 100-amp Class T fuse with fast-acting and current-limiting features. Rated for 300VAC and 125VDC, it has interrupting capacities of 200 kA and 20 kA, respectively. This non-indicating fuse fits standard fuse blocks or holders, particularly the LFT30100 Series. It's a durable choice for your electrical applications when used within its specifications.

Key Features and Benefits

• 100A continuous current rating: Provides the specific amperage required by equipment designed around a 100-amp Class T fuse.
• Class T configuration: Clearly identifies the fuse class, helping you narrow the compatibility check beyond amperage alone.
• Fast-acting operation: The manufacturer specifies the JLLN100 with a Fast-Acting (F) opening characteristic.
• Current-limiting design: Listed by Littelfuse as part of its current-limiting fuse family.
• AC and DC ratings: Rated for a maximum of 300VAC and 125VDC, making it important to match the voltage and corresponding interrupting capacity to the actual application.
• Knife-blade/bolt-in construction: Gives you another physical characteristic to verify when matching the fuse to existing equipment.
• Non-indicating design: The JLLN100 does not include an indicating feature.

Technical Specifications

• Manufacturer: Littelfuse
  
• Catalog Number: JLLN100
  
• Series: JLLN
  
• Manufacturer Description: FUS 300V F/A CLASS T 100A
  
• Fuse Class: Class T
  
• Current Rating: 100A continuous
  
• Opening Characteristic: Fast-Acting (F)
  
• Family Style: Current Limiting
  
• Maximum AC Voltage: 300VAC
  
• Maximum DC Voltage: 125VDC
  
• AC Interrupting Rating: 200,000A (200 kA) at 300VAC
  
• DC Interrupting Rating: 20,000A (20 kA) at 125VDC
  
• Construction / Size: Knife-Blade/Bolt-In
  
• Indicating: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• PG Holder: LFT30100 Series
  

Material Compliance and Certifications

The supplied manufacturer specifications for the Littelfuse JLLN100 do not state specific UL, CSA, CE, RoHS, REACH, or other material-compliance or certification details.

Where It Works Best

The JLLN100 is best suited to compatible electrical equipment that specifically requires a 100A Class T, fast-acting, current-limiting fuse with the stated voltage and interrupting ratings. Its knife-blade/bolt-in construction also makes physical configuration an important part of the selection process. This is especially useful when servicing existing equipment where the replacement must match a defined catalog number, fuse class, electrical ratings, and mounting arrangement rather than simply matching the amp rating.