KLSR050 - 50Amp Fuse

KLSR050 - 50Amp Fuse

A 50-amp rating is only one part of choosing the right replacement fuse. The KLSR050 is a 50A Class RK1 fast-acting, current-limiting fuse built around a single-element silver-link design for fast overload and short-circuit protection. Its current-limiting design also helps reduce equipment damage caused by the heating and magnetic effects of short-circuit currents. For a proper replacement, match more than amperage: check the Class RK1 designation, voltage, interrupting capacity, fast-acting characteristic, physical configuration, and mounting requirements against your equipment specifications.

Key Features and Benefits

• 50A continuous current rating for circuits specifically designed around a 50-amp Class RK1 fuse.
• Fast-acting (F) operation provides quick overload and short-circuit protection.
• Class RK1 fuse design gives you a defined fuse class to verify when replacing an existing fuse.
• Current-limiting construction helps reduce damage associated with the heating and magnetic effects of short-circuit current.
• Built with the KLSR Series' single-element silver-link design.
• Handles applications requiring a maximum rating of 600VAC.
• Rated for up to 300VDC where the circuit and equipment requirements match.
• Industrial cartridge construction provides a specific physical format for replacement matching.
• Non-indicating design for installations that do not require an integral fuse-status indicator.
• Installs using a compatible fuse block, clip, or holder.

Technical Specifications

• Catalog Number: KLSR050
  
• Manufacturer Description: FUS 600V F/A CLASS RK1 50A
  
• Series: KLSR
  
• Product Type: Fast-Acting, Current-Limiting Fuse
  
• Continuous Current Rating: 50A
  
• 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 manufacturer specifically describes the KLSR Series as using a single-element silver-link design. The supplied information does not provide a complete product-specific breakdown of the other materials used in the KLSR050, nor does it include environmental compliance declarations for this exact catalog number.

Where It Works Best

The KLSR050 50A fuse suits electrical equipment that requires a 50A Class RK1 fast-acting, current-limiting fuse with compatible electrical and physical requirements. The manufacturer identifies variable speed drives, rectifiers, and other equipment containing surge-sensitive components as applications where the fast-acting KLSR design can provide appropriate protection. Its current-limiting construction is also intended to reduce damage caused by the heating and magnetic effects of short-circuit currents.