A2D80R - 80 Amp Fuse

A2D80R - 80 Amp Fuse

When your electrical systems are exposed to overloads or short circuits, you need protection that reacts fast without interrupting normal startup conditions. The Mersen A2D80R Amp-Trap 2000® Class RK1 Time-Delay Fuse is built specifically for that balance. Designed for demanding commercial and industrial environments, this 80A fuse delivers high-performance overcurrent protection while still allowing temporary motor inrush currents to pass without nuisance opening. That means better protection for your motors, starters, switches, and branch circuits—along with less downtime and fewer maintenance headaches.

Part of Mersen’s trusted Amp-Trap 2000® A2D-R series, the A2D80R opens quickly during severe fault conditions to help limit damage to expensive electrical equipment. At the same time, its time-delay characteristics make it an excellent choice for motor-driven applications where startup surges are common. The built-in SmartSpot® indicator also makes troubleshooting faster by providing a clear visual indication when the fuse has operated, helping your maintenance teams identify issues quickly and keep systems moving efficiently.

Key Features and Benefits

• Advanced overcurrent protection: Provides advanced overcurrent and short-circuit protection for industrial electrical systems.
• Time-delay protection: Helps prevent nuisance fuse opening during motor startup.
• Fast fault clearing: Helps reduce damage to connected equipment.
• SmartSpot® indication: Simplifies maintenance and troubleshooting with blown-fuse indication.
• Replacement compatibility: Ideal replacement for existing Class H, K, and RK5 fuse applications.
• High interrupting rating: Supports demanding fault-current environments with a 200 kA rating.
• AC/DC compatibility: Suitable for both AC and DC applications.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A2D80R
  
• Series: Amp-Trap 2000® A2D-R
  
• Fuse Class: RK1
  
• Fuse Type: Time-Delay
  
• Ampere Rating: 80A
  
• Voltage Rating (AC): 250VAC
  
• Voltage Rating (DC): 250VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Terminal Type: Blade
  
• Terminal Material: Tin-Plated Copper
  
• Mounting Type: Clip
  
• Indication Type: SmartSpot® Visual Indicator
  
• Body Material: PolyTube
  
• Length: 149.4 mm
  
• Diameter: 26.9 mm
  
• Weight: 0.1338 kg
  

Material Compliance and Certifications

• RoHS Compliant: Supports environmental compliance requirements.
• UL/CSA applications: Designed for low-voltage fuse applications.
• AC/DC protection: Rated for both AC and DC circuit protection.
  

Where It Works Best

• The Mersen A2D80R fuse is an excellent choice for motor control centers, HVAC systems, industrial machinery, manufacturing equipment, feeder circuits, branch circuits, and commercial electrical distribution systems. Its combination of time-delay protection and high interrupting capacity makes it especially valuable in environments where motors and heavy electrical loads are frequently started and stopped throughout the day.