A6D5R - 5 Amp Fuse

A6D5R - 5 Amp Fuse

When electrical systems power up, temporary inrush currents are normal — but that doesn’t mean your equipment should be left unprotected. The Mersen A6D5R Amp-Trap 2000® Class RK1 Time-Delay Fuse is designed to handle those startup surges while still providing fast protection when real fault conditions occur. Rated at 5 Amps, this fuse helps protect motors, feeders, branch circuits, and other electrical equipment from overloads and short circuits without causing unnecessary interruptions during normal operation.

The A6D5R is part of Mersen’s trusted Amp-Trap 2000® A6D-R series, widely used in commercial and industrial electrical systems where dependable protection matters. Its time-delay design allows motors and equipment to start normally while still reacting quickly during dangerous fault conditions. That combination can help reduce downtime and protect valuable components such as motor starters, switches, and control equipment from electrical damage.

Designed for both 600VAC and 600VDC applications, the A6D5R offers flexibility across AC and DC systems. It also features a high 200 kA interrupting rating, helping provide added protection in systems with high available fault currents. The ferrule-style terminals allow secure clip mounting, while the PolyTube insulating body and tin-plated copper connections are built for reliable day-to-day performance in demanding environments.

This fuse is also a practical replacement option for older Class H, K, and RK5 fuses already installed in existing systems, making upgrades and maintenance simpler for many facilities.

Key Features and Benefits

• 5 Amp Class RK1 time-delay fuse: Helps protect against overloads and short circuits.
• Time-delay design: Allows temporary motor startup currents.
• Fast fault clearing: Helps reduce equipment damage.
• 600VAC / 600VDC rated: Rated for 600VAC and 600VDC applications.
• High interrupting rating: High 200 kA interrupting rating.
• Replacement compatibility: Compatible replacement for Class H, K, and RK5 fuses.
• Ferrule terminals: Ferrule terminals for secure clip mounting.
• AC/DC compatibility: Suitable for AC and DC electrical systems.
• Commercial and industrial use: Designed for commercial and industrial applications.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A6D5R
  
• Series: Amp-Trap 2000® A6D-R
  
• Fuse Class: Class RK1
  
• Fuse Type: Time-Delay
  
• Ampere Rating: 5A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 600VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Terminal Type: Ferrule
  
• Mounting: Clip
  
• Terminal Material: Tin-Plated Copper
  
• Body Material: PolyTube
  
• Diameter: 20.6 mm
  
• Length: 127 mm
  
• Product Weight: 0.0662 kg
  
• Product Group: Low Voltage UL/CSA Fuses
  

Material Compliance and Certifications

• The Mersen A6D5R fuse is manufactured for low-voltage UL and CSA fuse applications requiring dependable overcurrent protection in commercial and industrial electrical systems.
  

Where It Works Best

• Motor control circuits
• Industrial machinery
• HVAC systems
• Branch and feeder circuits
• Control panels
• Commercial electrical systems
• Power distribution equipment
• Manufacturing facilities
• Existing systems using Class H, K, or RK5 fuses

Its time-delay performance makes it especially useful in systems where motors and electrical equipment experience temporary startup surges but still need reliable protection from overloads and short circuits.