A6K4R - 4 Amp Fuse

A6K4R - 4 Amp Fuse

Small components can play a big role in keeping your electrical systems protected, and the Mersen A6K4R Amp-Trap® Class RK1 Fast-Acting Fuse is built to do exactly that. Rated at 4 Amps, this fast-acting fuse helps protect your circuits and connected equipment from overloads and short circuits before they turn into larger electrical problems.

The A6K4R is designed to respond quickly when fault conditions occur, helping reduce the amount of fault current passing through the system. That fast action can help protect your control panels, transformers, disconnects, and other sensitive electrical equipment commonly used in commercial and industrial settings. In environments where reliability matters every day, dependable overcurrent protection can help reduce downtime and unnecessary repairs.

Part of Mersen’s trusted Amp-Trap® A6K-R series, this Class RK1 fuse is commonly used in systems with high available fault currents. The ferrule-style terminals allow for secure clip mounting, while the PolyTube body is designed for consistent performance in demanding electrical applications.

With a high 200 kA interrupting rating, the A6K4R works well in industrial control systems, commercial power distribution equipment, HVAC applications, manufacturing facilities, and other electrical systems where quick fault protection is important.

Key Features and Benefits

• 4 Amp Class RK1 fast-acting fuse: Helps protect against overloads and short circuits.
• Current-limiting design: Helps reduce equipment damage.
• Fast fault clearing: Helps improve system protection.
• High 200 kA interrupting rating: Suitable for demanding electrical environments.
• Dual voltage rating: Rated for 600VAC and 300VDC applications.
• Ferrule terminals: Provide secure clip mounting.
• Commercial and industrial use: Designed for commercial and industrial electrical systems.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A6K4R
  
• Series: Amp-Trap® A6K-R
  
• Fuse Class: Class RK1
  
• Fuse Type: Fast-Acting
  
• Ampere Rating: 4A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Terminal Type: Ferrule
  
• Mounting: Clip
  
• Terminal Material: Tin-Plated Copper
  
• Body Material: PolyTube
  
• Diameter: 20.6 mm
  
• Length: 127 mm
  
• Product Weight: 0.0617 kg
  
• Product Group: Low Voltage UL/CSA Fuses
  

Material Compliance and Certifications

• UL and CSA Applications: The A6K4R is manufactured for low-voltage UL and CSA fuse applications requiring dependable overcurrent protection in commercial and industrial electrical systems.
  

Where It Works Best

• Branch circuit protection
• Feeder circuit protection
• Industrial control panels
• Commercial power distribution systems
• Manufacturing equipment
• HVAC systems
• Electrical distribution equipment
• Backup protection applications