KLSR600 - 600Amp Fuse

KLSR600 - 600Amp Fuse

A 600-amp rating may be the first thing you notice on the KLSR600, but choosing the right replacement involves more than matching amperage. The KLSR600 is a 600A Class RK1 fast-acting, current-limiting fuse built around the KLSR Series' single-element silver-link design. For replacement work, check the complete specification—not just the 600A rating—including Class RK1 requirements, voltage, interrupting capacity, opening characteristic, physical configuration, and equipment protection requirements.

Key Features and Benefits

• 600A continuous current rating for electrical equipment specifically designed around this amperage.
• Class RK1 configuration provides a defined fuse class for accurate replacement matching.
• Fast-acting (F) operation provides fast overload and short-circuit protection.
• Built with the KLSR Series' single-element silver-link design.
• Current-limiting construction reduces equipment damage caused by the heating and magnetic effects of short-circuit currents.
• Rated for systems requiring up to 600VAC maximum.
• Supports properly matched DC equipment requiring up to 300VDC maximum.
• Knife-blade construction provides the physical format specified for this catalog number.
• Designed for installation using a compatible fuse block, clip, or holder.
• The non-indicating design means the KLSR600 does not include a blown-fuse indicator.

Technical Specifications

• Catalog Number: KLSR600
  
• Manufacturer Description: FUS 600V F/A CLASS RK1 600A
  
• Series: KLSR
  
• Product Type: Fast-Acting, Current-Limiting Fuse
  
• Continuous Current Rating: 600A
  
• 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: LFR60600 Series
  

Material Compliance and Certifications

The manufacturer specifically describes the KLSR Series as using a single-element silver-link design. The supplied product information does not provide a complete material composition for the KLSR600, so do not assume materials for the body, terminals, filler, and other components based on the silver-link description alone.

Where It Works Best

The KLSR600 best matches electrical equipment that requires a 600A Class RK1 fast-acting, current-limiting fuse with the corresponding electrical and physical characteristics. Manufacturer guidance points to variable speed drives, rectifiers, and other equipment containing surge-sensitive components as applications where the fast-acting KLSR Series can provide appropriate protection. Its current-limiting design is intended to reduce equipment damage associated with the heating and magnetic effects of short-circuit currents.