A6K450R - 450Amp Fuse

A6K450R - 450Amp Fuse

The Mersen A6K450R Amp-Trap® Class RK1 Fast-Acting Fuse is designed for your electrical systems where reliable overcurrent protection is important. Rated at 450 Amps, this fuse helps protect your branch circuits and feeder circuits from overloads and short circuits before they can damage connected equipment or shut down operations.

In commercial and industrial environments, electrical faults can happen without much warning. The A6K450R is built to react quickly during those conditions, helping reduce the amount of fault current moving through the system. That fast response can help protect transformers, switchboards, disconnects, control panels, and other electrical equipment used every day in demanding applications.

Part of Mersen’s trusted Amp-Trap® A6K-R series, this Class RK1 fuse is commonly used in systems where high available fault currents are present. The blade-style terminals provide secure clip mounting, while the PolyTube body is designed for dependable day-to-day performance in industrial and commercial settings.

With a high 200 kA interrupting rating, the A6K450R works well in manufacturing facilities, commercial buildings, HVAC systems, industrial machinery, and power distribution equipment where dependable fault protection is needed.

Key Features and Benefits

• 450 Amp Class RK1 fast-acting fuse: Helps protect against overloads and short circuits.
• Current-limiting design: Helps reduce equipment damage.
• Fast fault clearing: Improves protection.
• High interrupting rating: 200 kA interrupting rating.
• Dual voltage rating: Rated for 600VAC and 300VDC applications.
• Blade terminals: Provide secure clip mounting.
• Commercial and industrial use: Designed for commercial and industrial systems.
• Equipment protection: Helps protect sensitive electrical equipment.
• High fault current applications: Suitable for systems with high available fault currents.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A6K450R
  
• Series: Amp-Trap® A6K-R
  
• Fuse Class: Class RK1
  
• Fuse Type: Fast-Acting
  
• Ampere Rating: 450A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 300VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Terminal Type: Blade
  
• Mounting: Clip
  
• Terminal Material: Tin-Plated Copper
  
• Body Material: PolyTube
  
• Diameter: 3.12 in
  
• Length: 13.38 in
  
• Product Weight: 4.89 lb
  
• Product Group: Low Voltage UL/CSA Fuses
  

Material Compliance and Certifications

• UL and CSA Applications: The A6K450R 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