A2K100R - 100Amp Fuse

A2K100R - 100Amp Fuse

The Mersen A2K100R Amp-Trap® Class RK1 fast-acting fuse is built to help you protect electrical systems from damaging overloads and short circuits before they turn into bigger problems. Designed for branch and feeder circuit protection, this 100 amp fuse responds quickly during fault conditions, helping reduce equipment damage and unnecessary downtime. Its current-limiting performance makes it a dependable choice for commercial and industrial applications where your electrical protection and system reliability are important.

Built with Mersen’s trusted Amp-Trap® technology, the A2K100R is commonly used in control panels, switchboards, HVAC equipment, motor circuits, and other power distribution systems that operate under demanding conditions. The fuse features a durable PolyTube body along with tin-plated copper blade terminals that help provide reliable conductivity and long service life. Because it is rated for both 250VAC and 250VDC applications, it can be used across a wide range of AC and DC electrical systems.

For facilities that need fast fault-clearing protection in compact electrical equipment, the A2K100R offers a practical and dependable solution. Its fast-acting RK1 design helps you protect sensitive components while supporting safer and more efficient system operation.

Key Features and Benefits

• Fast-acting Class RK1 fuse: Designed for quick response to overloads and short circuits.
• 100 amp rating: Suitable for branch and feeder circuit protection.
• Current-limiting design: Helps reduce potential equipment damage.
• 250VAC / 250VDC rated: Suitable for both AC and DC electrical applications.
• High interrupting rating: Rated for 200 kA interrupting capacity for demanding electrical systems.
• Blade-style terminals: Includes clip mounting for straightforward installation.
• Tin-plated copper terminals: Helps improve conductivity and corrosion resistance.
• Compact design: Works well in industrial and commercial electrical equipment.
• Amp-Trap® technology: Supports dependable circuit protection.
• ROHS compliant construction: Built to support environmental compliance requirements.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A2K100R
  
• Product Series: A2K-R – Class RK1 – Fast-Acting
  
• Product Type: Amp-Trap® Fuse
  
• Fuse Class: Class RK1
  
• Speed/Characteristic: Fast-Acting
  
• Ampere Rating: 100 A
  
• Rated Voltage AC: 250 VAC
  
• Rated Voltage DC: 250 VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Mounting Type: Clip
  
• Terminal Type: Blade
  
• Terminal Material: Tin-Plated Copper
  
• Insulating Material: PolyTube
  
• Product Diameter: 27 mm
  
• Product Length: 149.4 mm
  
• Product Weight: 0.151 kg
  
• UPC/EAN: 782001915223
  
• Product Group: Low Voltage UL/CSA Fuses
  

Material Compliance and Certifications

• ROHS Compliant: Supports environmental compliance requirements.
• UL/CSA applications: Designed for low-voltage fuse applications.
• PolyTube insulating body: Provides electrical insulation and durability.
• Tin-plated copper blade terminals: Supports conductivity and oxidation resistance.
  

Where It Works Best

• The Mersen A2K100R fuse works well in commercial and industrial electrical systems that require fast and reliable overcurrent protection. It is commonly used in branch circuits, feeder circuits, motor protection systems, switchboards, HVAC systems, industrial machinery, and electrical distribution panels where high available fault currents may be present.