FLSR025 - 25 Amp Fuse

FLSR025 - 25 Amp Fuse

When your circuit experiences normal startup surges, you need a fuse that can distinguish between a temporary inrush and a genuine overcurrent condition. The FLSR025 is a 25A Class RK5 dual-element time-delay fuse built for that job. With ratings up to 600 VAC and 300 VDC, it provides overcurrent protection for compatible industrial and commercial electrical systems. At the same time, its Slo-Blo/time-delay characteristic helps prevent unnecessary fuse openings during brief current surges. This is especially useful around motors, transformers, and other loads that can draw considerably more current when first energized.

Key Features and Benefits

• 25A continuous current rating for applications requiring a 25-amp Class RK5 fuse.
• Handles systems rated up to 600 VAC or 300 VDC.
• Time-delay operation allows normal, short-duration current surges without unnecessarily opening the circuit.
• Dual-element fuse construction provides overload and short-circuit protection.
• A good match for circuits involving motors, transformers, and other equipment with startup or inrush current.
• Industrial cartridge style works with compatible fuse blocks, clips, and holders.
• Non-indicating design for applications where a visual blown-fuse indicator isn't required.
• Designed for use with compatible holders, including the specified LFR60030 Series.
  

Technical Specifications

• Catalog Number: FLSR025
  
• Series: FLSR
  
• Fuse Type: Dual-Element Time-Delay Fuse
  
• Fuse Class: Class RK5
  
• Current Rating: 25A
  
• Maximum AC Voltage: 600VAC
  
• Maximum DC Voltage: 300VDC
  
• Opening Characteristic: Slo-Blo / Time Lag (T) / Time Delay
  
• Size / Construction: Industrial Cartridge
  
• Family Style: Dual Element Fuse
  
• Indicating: No
  
• AC Interrupting Rating: 200,000A at 600VAC
  
• Additional Listed AC Interrupting Rating: 300,000A at 600VAC
  
• DC Interrupting Rating: 20,000A (20kA) at 300VDC
  
• Mounting Method: Fuse Block / Clip / Holder
  
• Specified Holder: LFR60030 Series
  

Material Compliance and Certifications

The FLSR025 is identified as a Class RK5 industrial fuse. Specific material-compliance information and individual certification details were not included in the supplied product specifications, so they should not be assumed. For applications that require particular regulatory approvals, RoHS or REACH documentation, or other material declarations, confirm the requirements against documentation for the exact FLSR025 catalog number.

Where It Works Best

The FLSR025 makes the most sense in circuits where brief surges are simply part of normal operation. Motor circuits are a classic example. Motors can draw significantly more current during startup than when running, and a time-delay fuse is designed to ride through an appropriate short-duration surge rather than open unnecessarily.

It can also be used in compatible transformer circuits, industrial machinery, control equipment, feeders, and electrical distribution applications that call for a 25A Class RK5 time-delay fuse. The dual-element design makes it particularly useful when the application needs protection against sustained overloads as well as short-circuit conditions.