A2K3R - 3 Amp Fuse

A2K3R - 3 Amp Fuse

When electrical systems demand fast, reliable protection, the Mersen A2K3R Amp-Trap® Fuse delivers the performance professionals trust. Built for branch and feeder circuit protection in commercial and industrial environments, this Class RK1 fast-acting fuse is designed to respond quickly to overcurrents and short circuits before they can damage sensitive equipment or interrupt operations. Its current-limiting design helps minimize the destructive effects of fault currents, making it a smart choice for protecting control panels, transformers, HVAC equipment, motor circuits, and other critical electrical components.

Rated for both 250VAC and 250VDC, the A2K3R fuse offers flexible protection across a wide range of AC and DC applications. With a high interrupting rating of 200kA, this fuse is especially valuable in systems where available fault current levels are high and equipment protection is essential. Whether you're maintaining an industrial facility or upgrading electrical distribution equipment, the Mersen A2K3R fuse provides dependable circuit protection designed for demanding environments.

Key Features and Benefits

• Fast-acting Class RK1 fuse: For quick overcurrent protection.
• Helps reduce equipment damage: Caused by short circuits and overloads.
• Current-limiting design: Improves overall electrical system protection.
• Rated for both 250VAC and 250VDC applications
• High 200kA interrupting rating: For demanding electrical systems.
• Ferrule-style design: Allows simple installation in clip-mounted fuse holders.
• Tin-plated copper terminals: Improve conductivity and durability.
• Compact design: Ideal for industrial, commercial, and OEM applications.
  

Technical Specifications

• Catalog Number: A2K3R
  
• Manufacturer Series: A2K-R – Class RK1 – Fast-Acting
  
• Fuse Class: RK1
  
• Ampere Rating: 3A
  
• Voltage Rating (AC): 250VAC
  
• Voltage Rating (DC): 250VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200kA AC
  
• Terminal Type: Ferrule
  
• Mounting Type: Clip
  
• Terminal Material: Tin-Plated Copper
  
• Body Material: GMG
  
• Product Diameter: 14.3 mm
  
• Product Length: 50.8 mm
  
• Product Weight: 0.0172 kg
  

Material Compliance and Certifications

• RoHS Compliant
• Suitable for UL low-voltage fuse applications
• Designed for AC and DC electrical protection systems
• Manufactured to meet industry performance requirements for Class RK1 fuses
  

Where It Works Best

• The Mersen A2K3R fuse is an excellent fit for industrial and commercial electrical systems where fast fault interruption is critical. It performs especially well in branch circuits, feeder circuits, control panels, motor protection systems, transformers, HVAC systems, machinery, and electrical distribution equipment operating in environments with high available short-circuit currents. Its fast-acting performance helps protect valuable equipment while supporting safer and more reliable system operation.