FLSR020 - 20 Amp Fuse

FLSR020 - 20 Amp Fuse

When your electrical system calls for a 20-amp Class RK5 time-delay fuse, the FLSR020 provides the combination of overload protection and inrush tolerance needed in many industrial applications. This dual-element cartridge fuse is rated for 600VAC and 300VDC and uses a time-delay, or Slo-Blo, operating characteristic. That distinction matters for equipment such as motors and transformers, where a brief current surge can be perfectly normal during startup.

Key Features and Benefits

• 20-amp rating for circuits requiring a 20A Class RK5 fuse.
• Handles applications rated up to 600 VAC or 300 VDC.
• Time-delay operation helps prevent unnecessary fuse opening during normal temporary current surges.
• Dual-element design protects against sustained overloads and short circuits.
• Class RK5 construction provides current-limiting overcurrent protection.
• Industrial cartridge format works with compatible fuse blocks, clips, and holders.
• Non-indicating design for applications where a visual fuse-status indicator isn't required.
  

Technical Specifications

• Catalog Number: FLSR020
  
• Series: FLSR
  
• Current Rating: 20A
  
• Fuse Class: Class RK5
  
• Maximum AC Voltage: 600VAC
  
• Maximum DC Voltage: 300VDC
  
• Opening Characteristic: Slo-Blo / Time Lag / Time Delay
  
• Fuse Style: Dual Element
  
• Construction: Industrial Cartridge
  
• Indicating: No
  
• AC Interrupting Rating: 200,000A at 600VAC
  
• Additional Listed AC Interrupt Amperage: 300,000A at 600VAC
  
• DC Interrupting Rating: 20,000A at 300VDC
  
• Mounting: Fuse Block / Clip / Holder
  
• Specified Holder: LFR60030 Series
  

Material Compliance and Certifications

The FLSR020 is part of the Class RK5 fuse family and is intended for overcurrent protection in compatible electrical equipment. The supplied product specifications do not provide sufficient information to make specific claims regarding RoHS, REACH, material composition, or individual agency certifications; therefore, those details should be verified against current documentation for the exact FLSR020 catalog number when required.

Where It Works Best

The FLSR020 20A time-delay fuse is best suited for electrical circuits that may experience a temporary current surge as part of normal operation. Motor circuits, transformers, industrial machinery, motor control equipment, feeders, and distribution equipment are typical examples in which time-delay characteristics may be useful when the equipment is designed for this type of fuse.