KLSR175 - 175Amp Fuse

KLSR175 - 175Amp Fuse

When your equipment calls for a 175A Class RK1 fast-acting fuse, the details beyond amperage matter. The KLSR175 combines a single-element silver-link design with current-limiting performance for fast overload and short-circuit protection. For replacement selection, match the KLSR175 by amperage, Class RK1 designation, voltage, interrupting capacity, opening characteristic, and physical configuration rather than relying on the 175A rating alone.

Key Features and Benefits

• 175A continuous current rating for equipment designed around a 175-amp fuse requirement.
• Class RK1 configuration gives you a clearly defined fuse class for equipment and replacement compatibility checks.
• Fast-acting (F) operation provides fast overload and short-circuit protection.
• Built around the KLSR Series' single-element silver-link design.
• The current-limiting design helps reduce equipment damage from the heating and magnetic effects of short-circuit currents.
• Rated for electrical systems requiring up to 600VAC.
• Supports properly specified DC applications up to 300VDC.
• Knife-blade construction provides the specified physical connection format.
• Non-indicating design—there is no built-in blown-fuse indicator.
• Designed for installation using a compatible fuse block, clip, or holder.

Technical Specifications

• Catalog Number: KLSR175
  
• Manufacturer Description: FUS 600V F/A CLASS RK1 175A
  
• Series: KLSR
  
• Product Type: Fast-Acting, Current-Limiting Fuse
  
• Continuous Current Rating: 175A
  
• 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: LFR60200 Series
  

Material Compliance and Certifications

The supplied manufacturer information identifies a single-element silver link as part of the KLSR Series design. It does not provide a complete product-specific material composition for the KLSR175, so the materials used for the fuse body, terminals, filler, and other components should not be assumed from the silver-link description alone.

Where It Works Best

The KLSR175 175A fuse is a strong match for electrical equipment designed to use a Class RK1, fast-acting, current-limiting fuse with matching ratings. Manufacturer guidance points to variable speed drives, rectifiers, and other equipment containing surge-sensitive components as examples where the KLSR Series' fast-acting characteristics can be useful. Its current-limiting design is intended to reduce damage caused by the heating and magnetic effects associated with short-circuit currents.