JLLS1100 - 1100 Amp Fuse

JLLS1100 - 1100 Amp Fuse

At 1100 amps, selecting the right fuse means checking the entire specification rather than relying on current rating alone. The Littelfuse JLLS1100 is a Class T, fast-acting, current-limiting fuse with knife-blade-style construction for compatible electrical equipment. The JLLS1100 is also non-indicating and specified for Fuse block / Clip/Holder mounting. It's built to last, but the practical advantage for a buyer or technician is even simpler: the catalog number, electrical ratings, fuse class, opening characteristic, and construction are clearly defined, making it easier to determine whether the JLLS1100 meets your equipment's requirements.

Key Features and Benefits

• 1100A continuous current rating: Provides the specific current rating required by equipment designed for a 1100-amp fuse.
• Class T configuration: Clearly identifies the fuse class for more accurate equipment and replacement matching.
• Fast-acting operation: Littelfuse specifies the JLLS1100 with a Fast-Acting (F) opening characteristic.
• Current-limiting fuse: The JLLS1100 is part of Littelfuse's current-limiting fuse family.
• 600VAC maximum rating: Suitable for compatible equipment requiring a Class T fuse rated up to 600VAC.
• 300VDC maximum rating: The manufacturer also specifies a maximum DC voltage of 300VDC.
• Knife-blade-style construction: Gives you an important physical characteristic to confirm when matching an existing fuse.
• Knife-Blade/Bolt-In size: Helps identify the required physical configuration rather than relying on amperage or appearance alone.
• Non-indicating: The manufacturer specifies "No" for the indicating characteristic.

Technical Specifications

• Manufacturer: Littelfuse
  
• Catalog Number: JLLS1100
  
• Series: JLLS
  
• Manufacturer Description: FUS 600V F/A CLASS T 1100A
  
• Continuous Current Rating: 1100A
  
• Fuse Class: Class T
  
• Opening Characteristic: Fast-Acting (F)
  
• Family Style: Current Limiting
  
• Maximum AC Voltage: 600VAC
  
• Maximum DC Voltage: 300VDC
  
• AC Interrupting Rating: 200,000A (200 kA) at 600VAC
  
• DC Interrupting Rating: 20,000A (20 kA) at 300VDC
  
• Construction: Knife-blade style
  
• Size: Knife-Blade/Bolt-In
  
• Indicating: No
  
• Mounting Method: Fuse Block / Clip / Holder
  

Material Compliance and Certifications

The manufacturer specifications supplied for the JLLS1100 did not include any specific UL, CSA, CE, RoHS, REACH, or other certification or material-compliance information. This should not be interpreted as confirmation that the fuse either has or lacks any particular certification. If the application requires a specific listing, approval, or material-compliance standard, confirm it using the product markings and current authoritative Littelfuse documentation.

Where It Works Best

The Littelfuse JLLS1100 1100A Class T fuse is best suited to compatible electrical equipment that specifically requires a 1100-amp, fast-acting, current-limiting Class T fuse with a Knife-Blade/Bolt-In configuration. This is especially relevant when the equipment specification also calls for a 600VAC maximum AC rating or 300VDC maximum DC rating, along with the corresponding interrupting capacity stated above. Its knife-blade-style construction and Fuse Block / Clip / Holder mounting specification provide additional physical details to verify when replacing an existing fuse.