KLSR080 - 80Amp Fuse

KLSR080 - 80Amp Fuse

When your equipment calls for an 80A Class RK1 fast-acting fuse, the KLSR080 delivers the electrical ratings and physical characteristics you need. This 80-amp current-limiting fuse is rated for a maximum of 600VAC and 300VDC, with an interrupting capacity of 200,000A at 600VAC and 20,000A at 300VDC. For a replacement, though, don't match on amperage alone—confirm the fuse class, voltage, interrupting capacity, opening characteristic, physical format, and equipment requirements before installation.

Key Features and Benefits

• 80A continuous current rating for equipment designed around an 80-amp Class RK1 fuse.
• Fast-acting (F) operation provides quick overload and short-circuit protection.
• The current-limiting design helps reduce equipment damage caused by the heating and magnetic effects of short-circuit currents.
• Uses the KLSR Series' single-element silver-link design.
• Rated for electrical systems requiring up to 600VAC.
• Also carries a maximum 300VDC rating for compatible DC applications.
• Class RK1 construction makes fuse-class verification straightforward when matching an existing specification.
• Knife-blade construction provides the physical configuration specified for this catalog number.
• The non-indicating design means the fuse does not include a blown-fuse indicator.
• Designed for installation using a compatible fuse block, clip, or holder.

Technical Specifications

• Catalog Number: KLSR080
  
• Manufacturer Description: FUS 600V F/A CLASS RK1 80A
  
• Series: KLSR
  
• Product Type: Fast-Acting, Current-Limiting Fuse
  
• Continuous Current Rating: 80A
  
• Maximum AC Voltage: 600VAC
  
• Maximum DC Voltage: 300VDC
  
• AC Interrupting Capacity: 200,000A at 600VAC
  
• DC Interrupting Capacity: 20,000A at 300VDC
  
• Listed Interrupting Rating: 20 kA at 300VDC
  
• Opening Characteristic: Fast-Acting (F)
  
• Fuse Class: Class RK1
  
• Family Style: Current Limiting
  
• Construction / Size: Knife-Blade
  
• Element Design: Single-element silver link
  
• Indicating: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Specified PG Holder: LFR60100 Series
  

Material Compliance and Certifications

The supplied manufacturer information specifically identifies a single-element silver-link design for the KLSR Series. This confirms the fuse-element material, but the supplied specifications do not include a complete, product-specific material composition for the KLSR080—including all body and terminal materials. Product-specific environmental compliance declarations are also not provided.

Where It Works Best

The KLSR080 80A fuse best matches electrical equipment that requires an 80A, Class RK1, fast-acting, current-limiting fuse with the corresponding voltage, interrupting, and knife-blade requirements. Manufacturer guidance specifically calls out variable speed drives, rectifiers, and other equipment containing surge-sensitive components as examples where the KLSR Series' fast-acting characteristics can provide useful protection. Its current-limiting design also helps reduce damage associated with the heating and magnetic effects produced by short-circuit currents.