FLSR003 - 3 Amp Fuse

FLSR003 - 3 Amp Fuse

When a circuit has normal startup or inrush current, you need a fuse that won't react to every brief surge as though it were a fault. The FLSR003 is a 3-amp Class RK5 time-delay fuse with dual-element construction, designed to provide overcurrent protection while allowing appropriate short-duration inrush currents to pass. If your equipment calls for a 3A, 600V Class RK5 time-delay fuse, FLSR003 provides the specific electrical characteristics required for a proper replacement.

Key Features and Benefits

• 3A continuous current rating for equipment and circuits specified for 3-amp protection.
• Class RK5, dual-element design combines time-delay performance with overcurrent protection.
• Handles applications rated up to 600 VAC and 300 VDC.
• Time-delay/Slo-Blo operation helps prevent unnecessary fuse opening under acceptable temporary inrush conditions.
• Industrial cartridge style fits compatible fuse blocks, clips, and holders.
• Compatible with the LFR60030 Series holder family.
• Straightforward, non-indicating design.
  

Technical Specifications

• Catalog Number: FLSR003
  
• Series: FLSR
  
• Current Rating: 3A
  
• Fuse Class: Class RK5
  
• Fuse Type: Dual Element
  
• Opening: Slo-Blo / Time Lag / Time Delay
  
• Maximum AC Voltage: 600VAC
  
• Maximum DC Voltage: 300VDC
  
• DC Interrupting Rating: 20 kA at 300VDC
  
• Listed AC Interrupt Amperage: 200,000A / 300,000A at 600VAC
  
• Size / Construction: Industrial Cartridge
  
• Indicating: No
  
• Mounting: Fuse Block / Clip / Holder
  
• Holder Family: LFR60030 Series
  

Material Compliance and Certifications

Material-compliance and certification requirements can differ by installation, equipment type, and jurisdiction. If your project requires specific UL, CSA, RoHS, REACH, or other compliance documentation, confirm the current documentation for the exact FLSR003 part number before specifying or installing the fuse. This is especially worthwhile when the product will be used in equipment subject to formal inspection or documented compliance requirements.

Where It Works Best

The FLSR003 makes the most sense in a properly engineered circuit where a 3A fuse is required, but brief inrush currents are normal. Motors, transformers, control equipment, machinery, and other inductive loads can draw more current for a short period during startup. The time-delay characteristic is designed to accommodate appropriate temporary surges without sacrificing protection against sustained overcurrent conditions.