FLSR045-ID - 45Amp Fuse

FLSR045-ID - 45Amp Fuse

When your circuit needs 45-amp Class RK5 protection but must also handle the normal inrush current associated with motors, transformers, and other inductive loads, the FLSR045-ID is designed for the job. This dual-element, time-delay cartridge fuse carries a 45A continuous current rating and is rated for use up to 600VAC or 300VDC. With its combination of Class RK5 protection, high interrupting capability, and time-delay performance, it’s a useful choice for demanding industrial and commercial electrical applications where reliable circuit protection and easier maintenance both matter.

Key Features and Benefits

• 45A continuous rating for circuits requiring 45-amp overcurrent protection.
• Class RK5, dual-element design combines time-delay performance with short-circuit protection.
• 600 VAC and 300 VDC maximum voltage ratings provide flexibility for compatible AC and DC applications.
• Time-delay operation helps accommodate temporary startup and inrush currents associated with motors, transformers, and similar loads.
• The built-in indication makes an open fuse easier to identify during inspection and troubleshooting.
• Industrial cartridge construction is designed for use with the appropriate fuse block, clip, or holder.
• Compatible with the LFR60060 Series PG holder.
  

Technical Specifications

• Catalog Number: FLSR045-ID / FLSR045ID
  
• Series: FLSR_ID
  
• Fuse Type: Dual-Element Time-Delay Fuse
  
• Fuse Class: Class RK5
  
• Continuous Current Rating: 45A
  
• Maximum AC Voltage: 600VAC
  
• Maximum DC Voltage: 300VDC
  
• Opening: Slo-Blo / Time Lag / Time Delay
  
• AC Interrupt Amperage: 200,000A / 300,000A at 600VAC
  
• DC Interrupting Rating: 20,000A at 300VDC
  
• Indicating: Yes
  
• Construction: Industrial Cartridge
  
• Mounting: Fuse Block / Clip / Holder
  
• PG Holder: LFR60060 Series
  

Material Compliance and Certifications

The FLSR045-ID is identified as a Class RK5 fuse. For installations where a particular certification, environmental standard, or material compliance declaration is required, the applicable documentation should be checked for the exact catalog number before installation.

Where It Works Best

The FLSR045-ID makes the most sense in electrical systems where temporary inrush current is normal but sustained overcurrent still needs dependable protection. Motors and transformers are good examples: they can draw substantially more current during startup than during normal operation, so the time-delay characteristic can help prevent unnecessary fuse openings during those brief startup conditions.