FLSR090-ID - 90Amp Fuse

FLSR090-ID - 90Amp Fuse

A motor doesn't draw current the same way at startup as it does once it's running. Neither does a transformer. That short burst of inrush current is one reason the FLSR090-ID uses a time-delay design. If the fuse opens, the indication provides maintenance personnel with a quicker way to identify the affected fuse—particularly useful when they're working on equipment with several fuses. For your system that specifically calls for 90A Class RK5 time-delay protection with indication, the FLSR090-ID combines those characteristics into a single industrial fuse.

Key Features and Benefits

• 90A continuous rating for equipment designed around 90-amp fuse protection.
• Class RK5 dual-element design combines time-delay operation with protection against sustained overloads and short circuits.
• Suitable for properly specified circuits up to 600 VAC or 300 VDC.
• Slo-Blo / time-delay response allows for appropriate temporary inrush associated with equipment startup.
• Indicating design makes an open fuse easier to identify during inspection and troubleshooting.
• Knife-blade construction installs in a compatible fuse block, clip, or holder.
• Specified with the LFR60100 Series PG holder.
  

Technical Specifications

• Catalog Number: FLSR090-ID / FLSR090ID
  
• Series: FLSR_ID
  
• Fuse Class: Class RK5
  
• Fuse Style: Dual Element Fuse
  
• Continuous Current Rating: 90A
  
• Maximum AC Voltage: 600VAC
  
• Maximum DC Voltage: 300VDC
  
• Opening: Slo-Blo / Time Lag (T) / Time Delay
  
• AC Interrupt Amperage: 200,000A at 600VAC
  
• Additional Manufacturer-Specified AC Interrupt Amperage: 300,000A at 600VAC
  
• DC Interrupting Rating: 20,000A at 300VDC
  
• Construction: Knife-Blade
  
• Indicating: Yes
  
• Mounting: Fuse Block / Clip / Holder
  
• PG Holder: LFR60100 Series
  

Material Compliance and Certifications

The FLSR090-ID is identified as a Class RK5 fuse. When you're matching it to an existing installation, though, the class is only part of the picture. The amperage, voltage, interrupting capacity, time-delay requirement, physical configuration, and equipment specifications must all agree.

If your application requires specific UL, CSA, RoHS, REACH, environmental, or material compliance documentation, confirm the current documentation for the exact FLSR090ID catalog number. That's a better approach than assuming every fuse within the same product family carries identical approvals or declarations.

Where It Works Best

The FLSR090-ID is at home in circuits where a temporary current spike is part of normal operation. A motor starting from rest is a good example. It can demand substantially more current for a short period than it needs once it's up to speed. Transformers can also experience an initial inrush when energized.

Potential applications include properly specified motor circuits, transformers, motor-control equipment, industrial machinery, feeders, switchboards, service equipment, and industrial power-distribution systems requiring a 90A Class RK5 time-delay fuse.