KLSR045 - 45Amp Fuse

KLSR045 - 45Amp Fuse

When your equipment calls for a 45A Class RK1 fast-acting fuse, the KLSR045 delivers a specific set of electrical and physical characteristics. The KLSR045 is a 45-amp, fast-acting, current-limiting industrial cartridge fuse rated for up to 600VAC and 300VDC. Its single-element silver-link design provides fast-acting overload and short-circuit protection. At the same time, the current-limiting construction reduces equipment damage from the heating and magnetic effects of short-circuit currents. For replacement work, don't stop at the 45A marking—confirm the fuse class, fast-acting characteristic, voltage, interrupting capacity, cartridge configuration, and mounting requirements against the equipment specifications.

Key Features and Benefits

• 45A continuous current rating for equipment designed around this specific amperage.
• Class RK1 configuration provides a clearly defined fuse class for replacement matching.
• Fast-acting (F) operation provides fast overload and short-circuit protection.
• Current-limiting design helps reduce equipment damage caused by the heating and magnetic effects associated with short-circuit currents.
• Uses the KLSR Series' single-element silver-link design.
• Rated for electrical systems requiring up to 600VAC.
• Also rated for up to 300VDC when all other circuit requirements are compatible.
• Industrial cartridge construction gives buyers a specific physical format to match against the existing installation.
• Non-indicating design is appropriate where an integral blown-fuse indicator is not required.
• Designed for installation in a compatible fuse block, clip, or holder.

Technical Specifications

• Catalog Number: KLSR045
  
• Manufacturer Description: FUS 600V F/A CLASS RK1 45A
  
• Series: KLSR
  
• Product Type: Fast-Acting, Current-Limiting Fuse
  
• Continuous Current Rating: 45A
  
• 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: Industrial Cartridge
  
• Element Design: Single-element silver link
  
• Indicating: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Specified PG Holder: LFR60060 Series
  

Material Compliance and Certifications

The supplied manufacturer information specifically identifies the KLSR Series as having a single-element silver-link design. Beyond that silver-link detail, the supplied specifications do not provide a complete, product-specific material composition for KLSR045.

Where It Works Best

The KLSR045 45A fuse best matches electrical equipment that requires a 45A Class RK1 fast-acting, current-limiting fuse with compatible 600VAC or 300VDC requirements. The manufacturer specifically identifies variable speed drives, rectifiers, and other equipment containing surge-sensitive components as applications where the fast-acting KLSR design can be useful. Its current-limiting characteristics are intended to reduce damage caused by the heating and magnetic effects of short-circuit currents.