FLSR600-ID - 600Amp RK5 Fuse

FLSR600-ID - 600Amp RK5 Fuse

When you’re replacing a 600-amp fuse, matching the number on the label is only part of the job. The FLSR600-ID combines several important specifications in a single fuse: 600A continuous current, Class RK5 construction, time-delay operation, an indicating design, and ratings up to 600V AC and 300V DC. Its dual-element Slo-Blo / Time Lag (T) characteristic allows appropriate short-duration startup or inrush current without unnecessary opening, within the fuse’s specified operating characteristics.

Key Features and Benefits

• 600A continuous rating – Built for applications specifically requiring a 600-amp fuse.
• Class RK5 configuration – Gives electricians and maintenance teams a clear fuse classification to match against equipment requirements.
• Time-delay performance – The Slo-Blo / Time Lag (T) characteristic accommodates appropriate temporary startup and inrush current within the fuse’s specified operating characteristics.
• Indicating design – A particularly useful feature during maintenance and troubleshooting, and an important detail when matching an existing fuse.
• Dual-element construction – Part of the FLSR600-ID’s time-delay fuse design.
• Knife-blade style – Made for installation in compatible fuse blocks, clips, and holders.
  

Technical Specifications

• Catalog Number: FLSR600-ID
  
• Manufacturer Reference: FLSR600ID
  
• Series: FLSR_ID
  
• Product Type: Dual-Element Time-Delay Fuse
  
• Fuse Class: Class RK5
  
• Continuous Current Rating: 600A
  
• Maximum AC Voltage: 600V AC
  
• Maximum DC Voltage: 300V DC
  
• Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
  
• Construction / Size: Knife-Blade
  
• Indicating: Yes
  
• DC Interrupting Rating: 20 kA at 300V DC
  
• Manufacturer-Listed AC Interrupt Amperage: 200,000A and 300,000A at 600V AC*
  
• Mounting Method: Fuse Block / Clip / Holder
  
• PG Holder: LFR60600 Series
  

Material Compliance and Certifications

For this particular fuse, the supplied manufacturer information confirms the Class RK5 classification but does not provide catalog-specific details on UL, CSA, RoHS, or other compliance standards.

Where It Works Best

The FLSR600-ID makes sense when the equipment specification calls for a 600A Class RK5 time-delay fuse with knife-blade construction and an indicating configuration. It is particularly relevant in circuits where brief startup or inrush current can occur during normal operation, and the system has been engineered around the fuse’s time-delay characteristics.