FLNR175 - 175 Amp Fuse

FLNR175 - 175 Amp Fuse

When your application calls for a 175-amp Class RK5 fuse, the FLNR175 provides time-delay overcurrent protection in a familiar knife-blade design. Rated for 250VAC and 125VDC, this dual-element fuse is designed to handle brief current surges without unnecessary opening, while still providing protection when an overcurrent condition persists. That makes the FLNR175 particularly useful in electrical systems where startup and inrush currents are part of normal operation.

Key Features and Benefits

• 175A current rating for applications designed around a 175-amp fuse.
• Class RK5 construction for systems requiring this specific fuse class.
• Time-delay / Slo-Blo operation allows the fuse to ride through temporary current surges that can occur during normal equipment startup.
• Dual-element design provides the operating characteristics needed for time-delay applications.
• Handles systems rated up to 250VAC or 125VDC.
• Knife-blade configuration fits compatible fuse blocks, clips, and holders.
• Non-indicating design.
  

Technical Specifications

• Catalog Number: FLNR175
  
• Series: FLNR
  
• Continuous Current Rating: 175A
  
• Fuse Class: Class RK5
  
• Fuse Type: Dual Element
  
• Opening: Slo-Blo / Time Lag / Time Delay
  
• Maximum AC Voltage: 250VAC
  
• Maximum DC Voltage: 125VDC
  
• AC Interrupting Rating: Up to 300 kA
  
• DC Interrupting Rating: 20 kA
  
• Construction: Knife-Blade
  
• Indicating: No
  
• Mounting: Fuse Block / Clip / Holder
  
• Specified Holder: LFR25200 Series
  

Material Compliance and Certifications

The FLNR175 is classified as a Class RK5 fuse. The product information provided does not specify individual RoHS, REACH, lead-free, or other material-compliance declarations. Where a job, facility, or project has specific compliance requirements, the documentation for the exact FLNR175 catalog number should be checked before the fuse is specified or installed.

Where It Works Best

The FLNR175 makes sense in industrial and commercial electrical systems where a 175A Class RK5 time-delay fuse is required. Its time-delay characteristics are especially useful around equipment that can experience a short burst of higher current during startup. Instead of opening due to a normal momentary surge, the fuse can accommodate that transient condition while remaining available to protect against sustained overcurrent.

Depending on the equipment specifications, applications can include motor circuits, transformers, industrial machinery, control equipment, and electrical distribution systems. It's also a straightforward choice when replacing an existing FLNR175 and the original electrical requirements haven't changed.