A6K300R - 300Amp Fuse

A6K300R - 300Amp Fuse

The Mersen A6K300R Amp-Trap® Class RK1 fuse is designed for your electrical systems that need fast, dependable protection in high-demand environments. Rated for 300 amps, this fast-acting fuse helps protect your branch and feeder circuits from overloads and short circuits before damage spreads through the system. In facilities where downtime can slow production or interrupt operations, having the right fuse in place makes a real difference.

The compact blade-style design also allows for straightforward installation in compatible fuse clips.

This fuse is commonly used in switchboards, motor control centers, panelboards, and industrial equipment where reliable overcurrent protection is essential.

Key Features and Benefits

• Fast-acting Class RK1 fuse: For quick overload and short-circuit protection.
• 200 kA interrupting rating: For high fault current applications.
• Current-limiting design: Helps reduce equipment damage.
• Designed for branch circuit and feeder circuit protection.
• Suitable for AC and DC electrical systems.
• Durable PolyTube body: For long-term performance.
• Tin-plated copper blade terminals: For dependable conductivity.
• Blade-style construction: Allows easy installation in compatible fuse holders.
• Trusted for commercial and industrial power distribution systems.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A6K300R
  
• Product Series: A6K-R
  
• Product Type: Class RK1 Fast-Acting Fuse
  
• Ampere Rating: 300A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• Frequency: 50/60 Hz
  
• Fuse Class: Class RK1
  
• Fuse Characteristic: Fast-Acting
  
• Interrupting Rating: 200 kA
  
• Terminal Type: Blade
  
• Terminal Material: Tin-Plated Copper
  
• Mounting Type: Clip
  
• Body Material: PolyTube
  
• Product Length: 295.4 mm
  
• Product Diameter: 65.1 mm
  
• Product Weight: 1.4606 kg
  
• UPC: 782001915858
  

Material Compliance and Certifications

• UL Requirements: Manufactured to meet UL requirements for Class RK1 fuses.
• Application Design: Designed for low-voltage AC/DC circuit protection applications.
• High Interrupting Capacity: Supports demanding industrial electrical systems.
• Durable Construction: Constructed with durable insulating and conductive materials for reliable operation.
  

Where It Works Best

• The Mersen A6K300R works well in industrial plants, commercial buildings, manufacturing facilities, and heavy-duty electrical distribution systems where fast overcurrent protection is required. Typical applications include switchboards, motor control centers, feeder circuits, panelboards, and equipment protection in systems with high available short-circuit current.