A6D500R - 500Amp Fuse

A6D500R - 500Amp Fuse

The Mersen A6D500R Amp-Trap 2000® Class RK1 time-delay fuse is built for your electrical systems that need dependable protection and consistent performance in demanding environments. Rated at 500 amps for both 600VAC and 600VDC applications, this fuse helps protect your motors, feeders, branch circuits, and other power distribution equipment from overloads and short circuits while still allowing normal startup currents to pass without unnecessary interruptions.

In many industrial applications, large motors pull higher current for a short time during startup. The A6D500R is designed to handle those temporary inrush currents without opening too soon, helping equipment stay online and reducing avoidable downtime. If a major fault occurs, the fuse reacts quickly to help limit damage to motor starters, switches, contactors, and connected electrical components.

Part of Mersen’s Amp-Trap 2000® A6D-R series, the A6D500R is commonly used in manufacturing facilities, HVAC systems, motor control centers, pumps, compressors, and commercial electrical distribution systems. It can also replace older Class H, K, and RK5 fuses already installed in many existing systems, making upgrades and maintenance more straightforward for electricians and maintenance personnel.

The built-in SmartSpot® indication system gives technicians a clear visual indication when the fuse has opened, helping speed up troubleshooting and service work. Blade-style terminals with tin-plated copper connections provide reliable conductivity, while the PolyTube body is designed for long service life in industrial and commercial environments.

Key Features and Benefits

• 500A Class RK1 time-delay fuse: For industrial and commercial applications.
• Equipment protection: Helps protect motors, feeders, branch circuits, and power distribution equipment.
• Time-delay design: Helps reduce nuisance openings during motor startup.
• Fast current-limiting protection: During fault conditions.
• SmartSpot® indication: Helps simplify troubleshooting and maintenance.
• 600VAC / 600VDC rated: Rated for both 600VAC and 600VDC systems.
• High interrupting rating: 200 kA interrupting rating for high fault-current protection.
• Replacement option: Replacement option for older Class H, K, and RK5 fuses.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A6D500R
  
• Series: Amp-Trap 2000® A6D-R
  
• Product Type: Time-Delay Fuse
  
• Fuse Class: RK1
  
• Ampere Rating: 500A
  
• Voltage Rating: 600VAC / 600VDC
  
• Frequency: 50/60 Hz
  
• Current Type: AC/DC
  
• Interrupting Rating: 200 kA
  
• Fuse Characteristic: Time Delay
  
• Indication System: SmartSpot®
  
• Mounting Type: Clip
  
• Terminal Type: Blade
  
• Terminal Material: Tin-Plated Copper
  
• Body Material: PolyTube
  
• Product Diameter: 79.4 mm
  
• Product Length: 339.9 mm
  
• Product Weight: 2.1863 kg
  
• UPC/EAN: 782001992293
  

Material Compliance and Certifications

• The Mersen A6D500R fuse is part of the Amp-Trap 2000® low-voltage fuse family and is designed for UL and CSA electrical applications.
  

Where It Works Best

• Motor control centers (MCCs)
• Industrial manufacturing equipment
• HVAC and refrigeration systems
• Pumps and compressors
• Conveyor and automation systems
• Commercial power distribution panels
• Feeders and branch circuits
• Heavy-duty machinery
• Retrofit projects replacing older Class H, K, or RK5 fuses
• Electrical systems with high available fault currents