FLSR020-ID - 20Amp Fuse

FLSR020-ID - 20Amp Fuse

Protect your electrical system with the Littelfuse FLSR020ID 20 A 600 V Time‑Delay Class RK5 Indicating Fuse—a high‑performance industrial cartridge fuse designed for heavy‑duty use where reliability matters most. This dual‑element fuse delivers dependable protection against both short‑circuit events and sustained overloads, making it ideal for applications such as motor control centers, HVAC systems, and power distribution panels. The built‑in visual indicator simplifies maintenance by showing the status of the fuse at a glance, helping you minimize downtime and keep systems running smoothly. With its rugged construction and high interrupting rating, the FLSR020ID is a go‑to solution when you need a fuse you can count on.

Key Features and Benefits

• Dual‑Element Construction: Offers dual protection by handling rapid short‑circuit events and slower overload conditions—giving you complete system reliability.
• Visual Indication Feature: The built‑in indicator lets you quickly identify a blown fuse without having to open panels or test each one individually—saving time and cutting maintenance effort.
• Cost‑Effective Protection: By helping prevent equipment damage and supporting longer equipment life, this fuse lowers operational costs and protects your investment.

Technical Specifications

• Continuous Current Rating: 20 A
  
• Voltage Rating: 600 V AC, 300 V DC
  
• Interrupting Rating: 200,000 A at 600 V AC; 20,000 A at 300 V DC
  
• Opening Characteristics: Time Delay (Slo‑Blo) dual‑element
  
• Fuse Class: Class RK5
  
• Construction Style: Industrial cartridge, dual‑element family
  
• Indication Feature: Yes (visual indicator included)
  

Material Compliance and Certifications

• Agency Approvals: UL Listed, CSA Certified
  
• Material Standards: RoHS Compliant
  
• Manufacturing Standards: Produced under strict environmental and quality controls to meet industry specifications
  

Where It Works Best

• Motor control centers are driving large motors or pumps
  
• HVAC and refrigeration systems operating in commercial buildings
  
• Industrial manufacturing machines with heavy load profiles
  
• Electrical distribution panels where reliable protection is essential
  
• Material handling systems, compressors, and essential equipment cannot afford unexpected downtime