FLNR225-ID - 225Amp Fuse

FLNR225-ID - 225Amp Fuse

When your circuit needs reliable overcurrent protection while also handling normal startup current, the FLNR225-ID is built for the job. This 225-amp Class RK5 fuse features a dual-element, time-delay design that allows it to ride through appropriate short-duration inrush currents while still protecting against damaging overcurrent conditions. It is rated for 250VAC and 125VDC and uses a knife-blade configuration for installation in compatible fuse blocks, clips, and holders. One particularly useful feature is its indicating design.

Key Features and Benefits

• 225A continuous current rating for compatible 225-amp applications.
• Class RK5, dual-element design provides time-delay overcurrent protection.
• Slo-Blo/time-delay operation helps accommodate normal short-term startup and inrush currents.
• The built-in indication makes it easier to identify an open fuse during maintenance and troubleshooting.
• Rated for applications up to 250VAC or 125VDC.
• Knife-blade construction fits compatible fuse blocks, clips, and holders.
  

Technical Specifications

• Catalog Number: FLNR225-ID
  
• Manufacturer Reference: FLNR225ID
  
• Series: FLNR_ID
  
• Fuse Class: Class RK5
  
• Fuse Style: Dual Element
  
• Current Rating: 225A
  
• Maximum AC Voltage: 250VAC
  
• Maximum DC Voltage: 125VDC
  
• Opening Characteristic: Slo-Blo / Time Lag / Time Delay
  
• AC Interrupting Rating: Up to 300 kA
  
• DC Interrupting Rating: 20 kA
  
• Construction: Knife-Blade
  
• Indicating: Yes
  
• Mounting: Fuse Block / Clip / Holder
  
• Holder Series: LFR25400 Series
  

Material Compliance and Certifications

The FLNR225-ID is specified as a Class RK5 fuse. When a project requires specific regulatory approvals, certifications, environmental declarations, or material compliance documentation, these requirements should be verified against the applicable product documentation prior to installation.

Where It Works Best

The FLNR225-ID makes sense in commercial and industrial electrical systems that require a 225A Class RK5 time-delay fuse, particularly where equipment produces a temporary current surge at startup. The time-delay characteristic allows the fuse to tolerate appropriate short-duration inrush currents while maintaining overcurrent protection.

That makes this type of fuse useful in compatible applications involving motors, transformers, machinery, and other equipment with startup current demands. The indicating feature is also handy in facilities where maintenance teams routinely inspect and troubleshoot electrical equipment. Instead of spending extra time determining which fuse has opened, technicians have a visible indication to help point them in the right direction.