A6D50R - 50 Amp Fuse

A6D50R - 50 Amp Fuse

The Mersen A6D50R Amp-Trap 2000® Class RK1 time-delay fuse is designed to provide reliable circuit protection in commercial and industrial electrical systems. Rated at 50 amps for both 600VAC and 600VDC applications, this fuse helps protect your motors, feeders, branch circuits, and other electrical equipment from overloads and short circuits while still allowing temporary startup currents during normal operation.

Many electrical systems experience brief inrush currents when motors start. The A6D50R is designed to handle those temporary surges without opening unnecessarily, helping reduce your downtime and avoid nuisance fuse replacements. If a serious fault occurs, the fuse responds quickly to help protect motor starters, switches, contactors, and connected equipment from damage.

As part of Mersen’s Amp-Trap 2000® A6D-R series, the A6D50R is commonly used in HVAC equipment, industrial machinery, motor control centers, pumps, compressors, and commercial distribution systems. It can also replace older Class H, K, and RK5 fuses already installed in existing systems, making maintenance and upgrades easier.

The built-in SmartSpot® indication system gives technicians a visual indication when the fuse has opened, helping you simplify troubleshooting and maintenance. Ferrule-style terminals with tin-plated copper connections provide dependable conductivity, while the PolyTube body is designed for long service life in demanding environments.

Key Features and Benefits

• 50A Class RK1 time-delay fuse: For industrial and commercial applications.
• Equipment protection: Helps protect motors, feeders, branch circuits, and electrical equipment.
• Time-delay design: Helps reduce nuisance openings during motor startup.
• Fast current-limiting protection: During fault conditions.
• SmartSpot® indication: Helps simplify troubleshooting.
• 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: A6D50R
  
• Series: Amp-Trap 2000® A6D-R
  
• Product Type: Time-Delay Fuse
  
• Fuse Class: RK1
  
• Ampere Rating: 50A
  
• 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: Ferrule
  
• Terminal Material: Tin-Plated Copper
  
• Body Material: PolyTube
  
• Product Diameter: 26.9 mm
  
• Product Length: 139.7 mm
  
• Product Weight: 0.1542 kg
  
• UPC/EAN: 782001992033
  

Material Compliance and Certifications

• The Mersen A6D50R 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)
• HVAC and refrigeration systems
• Industrial machinery and automation equipment
• Pumps and compressors
• Manufacturing and processing equipment
• Commercial electrical distribution systems
• Feeders and branch circuits
• Control panels and switchgear
• Retrofit projects replacing older Class H, K, or RK5 fuses
• Electrical systems with temporary startup surge currents

For facilities looking to improve equipment protection and reduce unnecessary interruptions, the Mersen A6D50R provides dependable performance for demanding industrial and commercial electrical systems.