JLLS025 - 25Amp Fuse

JLLS025 - 25Amp Fuse

Getting the amperage right is important, but with a Class T fuse, that's only part of the match. The Littelfuse JLLS025 is a 25-amp Class T fuse combining fast-acting operation, current-limiting characteristics, and industrial cartridge construction in one clearly specified component. When you're replacing a fuse in existing equipment, those details give you practical checkpoints beyond simply matching "25A" on the label.

Key Features and Benefits

• 25A continuous current rating: Provides the specific amperage needed when equipment documentation calls for a 25-amp fuse.
• Class T designation: Makes fuse-class verification straightforward during maintenance and replacement work.
• Fast-acting operation: The JLLS025 carries Littelfuse's Fast-Acting (F) opening designation.
• Current-limiting characteristics: Provides another clear specification for matching the fuse to the electrical system's requirements.
• 600VAC maximum rating: Suitable for compatible AC equipment operating within the manufacturer's stated voltage rating.
• 300VDC maximum rating: Provides a separate manufacturer-specified rating for compatible DC applications.
• Industrial cartridge construction: Provides technicians with a key physical characteristic to confirm when checking compatibility.
• Non-indicating configuration: This model does not incorporate an indicating feature.

Technical Specifications

• Manufacturer: Littelfuse
  
• Catalog Number: JLLS025
  
• Series: JLLS
  
• Manufacturer Description: FUS 600V F/A CLASS T 25A
  
• Continuous Current Rating: 25A
  
• 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
  
• Size / Construction: Industrial Cartridge
  
• Indicating: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• PG Holder: LFT60030 Series
  

Material Compliance and Certifications

The supplied manufacturer specifications for the JLLS025 did not include specific UL, CSA, CE, RoHS, REACH, or other material-compliance or certification information. This should not be interpreted to mean the fuse does or does not carry a particular certification. For applications that require a specific approval or material standard, confirm the product markings and the applicable current manufacturer documentation.

Where It Works Best

The Littelfuse JLLS025 25A fuse is best matched with compatible electrical equipment that specifically calls for a 25A Class T, fast-acting, current-limiting industrial cartridge fuse and the applicable 600VAC or 300VDC electrical ratings. This is especially important for maintenance and replacement situations, where you can check the required catalog number, fuse class, opening characteristic, voltage ratings, interrupting capacity, construction, and mounting arrangement against the equipment specifications.