KLNR090 - 90Amp Fuse

KLNR090 - 90Amp Fuse

The KLNR090 is a 90A Class RK1 fast-acting, current-limiting fuse designed for electrical equipment that calls for this specific combination of amperage, fuse class, voltage capability, and operating characteristic. For the KLNR090 specifically, the physical format is knife-blade, and you install it through a compatible fuse block, clip, or holder. This combination makes the KLNR090 a strong fit when you're replacing a fuse with matching electrical and physical requirements—but don't stop at the 90A marking. Confirm the Class RK1 designation, fast-acting response, AC or DC voltage requirements, interrupting rating, and knife-blade construction against the equipment specifications before making the match.

Key Features and Benefits

• 90A continuous current rating for equipment designed to use a 90-amp Class RK1 fuse.
• Fast-acting (F) operation provides fast overload and short-circuit protection.
• The Class RK1 configuration helps narrow compatibility when identifying the correct replacement fuse.
• Uses the KLNR/KLSR family's single-element silver-link design.
• Current-limiting construction reduces equipment damage from the heating and magnetic effects of short-circuit currents.
• Maximum 250VAC rating for appropriately rated AC equipment.
• Knife-blade construction provides the specified physical format for the KLNR090.
• Designed for mounting in a compatible fuse block, clip, or holder.
• Non-indicating fuse with no built-in indicating feature.

Technical Specifications

• Catalog Number: KLNR090
  
• Manufacturer Description: FUS 250V F/A CLASS RK1 90A
  
• Series: KLNR
  
• Product Type: Fast-Acting Current-Limiting Fuse
  
• Continuous Current Rating: 90A
  
• Maximum AC Voltage: 250VAC
  
• Maximum DC Voltage: 125VDC
  
• AC Interrupting Rating: 200,000A at 250VAC
  
• DC Interrupting Rating: 20,000A at 125VDC
  
• Opening Characteristic: Fast-Acting (F)
  
• Fuse Class: Class RK1
  
• Family Style: Current Limiting
  
• Element Design: Single-Element, Silver Link
  
• Construction / Size: Knife-Blade
  
• Indicating: No
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Specified PG Holder: LFR25100 Series
  

Material Compliance and Certifications

The supplied manufacturer information identifies the KLNR090 as a Class RK1 current-limiting fuse and describes the KLNR/KLSR family as using a single-element silver-link design. The manufacturer also references applications requiring the current-limiting ability of UL Class RK1 fuses.

Where It Works Best

The KLNR090 90A fuse suits electrical equipment that requires a 90A Class RK1 fast-acting, current-limiting fuse with matching voltage, interrupting, mounting, and physical requirements. The manufacturer specifically identifies variable speed drives, rectifiers, and other equipment containing surge-sensitive components as applications where the KLNR/KLSR family's fast-acting characteristics can be useful.