JLLN090 - 90Amp Fuse

JLLN090 - 90Amp Fuse

When you're matching a fuse for existing equipment, 90 amps is only one piece of the JLLN090 specification. The Littelfuse JLLN090 is a 90A Class T fuse with fast-acting operation, a current-limiting design, and knife-blade-style construction. The JLLN090 is also non-indicating and can be mounted in a fuse block, clip, or holder; the LFT30100 Series is the PG holder. For maintenance and replacement applications that require these exact characteristics, this provides a straightforward set of specifications to verify—a purpose-built electrical component designed to last when properly selected and operated within its stated ratings.

Key Features and Benefits

• 90A continuous current rating — Clearly identifies the amperage for equipment requiring a 90-amp Class T fuse.
• Fast-acting (F) operation — The specified opening characteristic helps you match the JLLN090 to applications calling specifically for fast-acting fuse behavior.
• Current-limiting design — Littelfuse identifies the JLLN090 as part of its current-limiting fuse family.
• Class T configuration — An essential compatibility detail to check alongside current, voltage, construction, and interrupting capacity.
• Rated up to 300VAC — Provides a defined maximum AC voltage for compatible applications.
• Rated up to 125VDC — Provides a separately defined maximum voltage for compatible DC applications.
• Knife-blade-style construction — Manufacturer data identifies the fuse as Knife-Blade/Bolt-In, giving you another concrete point to verify for physical compatibility.
• Non-indicating design — The JLLN090 does not incorporate an indicating feature.

Technical Specifications

• Manufacturer: Littelfuse
  
• Catalog Number: JLLN090
  
• Series: JLLN
  
• Manufacturer Description: FUS 300V F/A CLASS T 90A
  
• Product Type: Class T Fuse
  
• Continuous Current Rating: 90A
  
• Fuse Class: Class T
  
• Opening Characteristic: Fast-Acting (F)
  
• Family Style: Current Limiting
  
• Construction: Knife-Blade Style
  
• Size / Configuration: Knife-Blade/Bolt-In
  
• Maximum AC Voltage: 300VAC
  
• AC Interrupting Rating: 200,000A (200 kA) at 300VAC
  
• Maximum DC Voltage: 125VDC
  
• DC Interrupting Rating: 20,000A (20 kA) at 125VDC
  
• Indicating: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• PG Holder: LFT30100 Series
  

Material Compliance and Certifications

The manufacturer specifications provided for the JLLN090 did not include specific UL, CSA, CE, RoHS, REACH, or other material-compliance or certification information. This should not be interpreted as meaning that the fuse does not carry particular certifications. If your application requires a listing, approval, or material-compliance requirement, verify it against authoritative documentation and product markings for the exact JLLN090 catalog number.

Where It Works Best

The Littelfuse JLLN090 90A Class T fuse suits compatible electrical equipment that requires its combination of a 90A continuous current rating, fast-acting opening characteristic, current-limiting design, and Knife-Blade/Bolt-In construction. For AC applications, verify the equipment requirements against the fuse's 300VAC maximum rating and 200 kA interrupting capacity at 300VAC. DC applications have their own limits: 125VDC maximum with a 20 kA interrupting capacity at 125VDC.