A6D100R - 100 Amp Fuse

A6D100R - 100 Amp Fuse

The Mersen A6D100R Amp-Trap 2000® Class RK1 Fuse is designed for electrical systems that need both strong short-circuit protection and the flexibility to handle temporary motor inrush currents without unnecessary fuse openings. Rated at 100 amps with a 600VAC / 600VDC capacity, this time-delay fuse is a dependable option for protecting motors, feeders, branch circuits, and other critical equipment found in commercial and industrial environments.

This fuse also features Mersen’s SmartSpot® indication system, making maintenance inspections faster and easier by providing a visible indication when the fuse has opened. Built with tin-plated copper blade terminals and a durable PolyTube insulating body, the A6D100R is engineered for long-term performance in demanding electrical applications. With a 200 kA interrupting rating, it is well suited for systems where high available fault currents require dependable protection.

Whether you're replacing older Class H, K, or RK5 fuses or upgrading existing protection, the A6D100R offers a practical solution trusted across industrial facilities, manufacturing equipment, HVAC systems, and commercial power distribution setups.

Key Features and Benefits

• Time-Delay Performance: Helps prevent nuisance openings caused by temporary motor inrush currents.
• Fast Short-Circuit Response: Opens quickly under fault conditions to help protect electrical equipment.
• 100 Amp Rating: Suitable for a wide range of industrial and commercial applications.
• Class RK1 Current-Limiting Design: Helps reduce damaging fault currents and improve system protection.
• 600VAC / 600VDC Rated: Designed for both AC and DC circuit protection.
• SmartSpot® Fuse Indicator: Provides clear visual indication when the fuse has operated.
• 200 kA Interrupting Rating: Built for high fault-current applications.
• Tin-Plated Copper Blade Terminals: Helps maintain strong conductivity and durability over time.
• Replacement Upgrade Option: Can replace older 600V Class H, K, and RK5 fuses already installed in the field.
  

Technical Specifications

• Catalog Number: A6D100R
  
• Manufacturer: Mersen
  
• Series: A6D-R – Class RK1 – Time-Delay
  
• Fuse Type: Amp-Trap 2000® SmartSpot®
  
• Ampere Rating: 100A
  
• Voltage Rating AC: 600VAC
  
• Voltage Rating DC: 600VDC
  
• Frequency: 50/60 Hz
  
• Fuse Class: Class RK1
  
• Speed / Characteristic: Time-Delay
  
• Interrupting Rating: 200 kA AC
  
• Terminal Type: Blade
  
• Terminal Material: Tin-Plated Copper
  
• Mounting Type: Clip
  
• Indication System: SmartSpot®
  
• Body Material: PolyTube
  
• Product Length: 200.2 mm
  
• Product Diameter: 33.3 mm
  
• Product Weight: 0.2803 kg
  

Material Compliance and Certifications

• Designed for low-voltage UL/CSA fuse applications: Manufactured to meet demanding industrial circuit protection standards.
• Suitable for AC and DC electrical systems: Designed for dependable commercial and industrial circuit protection.
  

Where It Works Best

The A6D100R fuse is commonly used in applications where motors and electrical equipment need reliable overcurrent protection without frequent nuisance interruptions, including:

• Motor control centers
• HVAC equipment
• Industrial machinery
• Feeders and branch circuits
• Manufacturing facilities
• Commercial power distribution systems
• Pumps and compressors
• Electrical panels and switchgear                                                                                      
  

 For facilities that depend on reliable uptime and strong fault protection, the Mersen A6D100R delivers the combination of performance, protection, and convenience professionals expect in a Class RK1 time-delay fuse.