JLLN070 - 70Amp Fuse

JLLN070 - 70Amp Fuse

The Littelfuse JLLN070 is a 70-amp Class T fuse designed for your applications where the electrical ratings and physical configuration must match specific equipment requirements. This fast-acting, current-limiting fuse carries a maximum rating of 300VAC and 125VDC, with distinctly different interrupting capacities for AC and DC service: 200 kA at 300VAC and 20 kA at 125VDC.

Key Features and Benefits

• 70A continuous current rating — Clearly defined for equipment requiring a 70-amp Class T fuse.
• Fast-acting (F) operation — Provides the opening characteristic specified by Littelfuse for the JLLN070.
• Current-limiting design — Part of the Littelfuse JLLN current-limiting fuse family.
• Class T configuration — An important compatibility point when identifying the correct fuse for existing electrical equipment.
• 300VAC maximum rating — Suitable for compatible applications operating within the specified AC voltage limit.
• 125VDC maximum rating — Provides a defined DC voltage limit for compatible DC applications.
• Knife-blade-style construction — Littelfuse identifies the JLLN070 as a knife-blade-style fuse, with its size listed as Knife-Blade/Bolt-In.
• Non-indicating design — The manufacturer specifies that this fuse does not include an indicating feature.

Technical Specifications

• Manufacturer: Littelfuse
  
• Catalog Number: JLLN070
  
• Series: JLLN
  
• Manufacturer Description: FUS 300V F/A CLASS T 70A
  
• Product Type: Class T Fuse
  
• Construction: Knife-Blade Style
  
• Size / Configuration: Knife-Blade/Bolt-In
  
• Continuous Current Rating: 70A
  
• Fuse Class: Class T
  
• Opening Characteristic: Fast-Acting (F)
  
• Family Style: Current Limiting
  
• 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 supplied manufacturer specifications for the Littelfuse JLLN070 do not state specific UL, CSA, CE, RoHS, REACH, or other material-compliance or certification information. Do not interpret this as confirmation that the fuse has or lacks any particular certification. If a listing, approval, or material-compliance requirement applies to your installation, verify it using authoritative documentation and the markings associated with the exact JLLN070 catalog number.

Where It Works Best

The Littelfuse JLLN070 70A Class T fuse is best considered for compatible existing electrical equipment that specifically calls for its combination of 70A continuous current, Class T construction, fast-acting operation, current-limiting characteristics, and knife-blade/bolt-in physical format. For AC applications, verify the system against the fuse's 300VAC maximum voltage and 200 kA interrupting rating at 300VAC. For DC applications, the relevant figures are different: 125VDC maximum and 20 kA interrupting capacity at 125VDC.