A6D7R - 7 Amp Fuse

A6D7R - 7 Amp Fuse

The Mersen A6D7R Amp-Trap 2000® Class RK1 Time-Delay Fuse is a dependable choice for  protecting electrical systems that deal with normal startup surges from motors and equipment. Rated at 7 Amps, this fuse is designed to handle temporary inrush currents during startup while still providing fast protection when overloads or short circuits happen.

In many commercial and industrial systems, motors pull extra current for a short time when they start. A standard fuse can sometimes open too quickly during those brief surges, causing unnecessary downtime. The A6D7R is built to help you avoid that problem. Its time-delay design allows normal startup currents to pass while still reacting quickly during serious fault conditions to help protect your switches, motor starters, control panels, and other connected equipment.

Part of the trusted Amp-Trap 2000® A6D-R series, this fuse is commonly used in HVAC equipment, industrial machinery, branch circuits, and power distribution systems where reliable circuit protection matters. The ferrule-style terminals provide secure clip mounting, and the PolyTube body is designed for consistent performance in demanding environments.

The A6D7R is rated for both 600VAC and 600VDC applications and features a high 200 kA interrupting rating, making it suitable for systems with higher available fault currents. It can also replace older Class H, K, and RK5 fuses already installed in existing systems, making maintenance and upgrades easier.

Key Features and Benefits

• 7 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.
• Voltage rating: Rated for 600VAC and 600VDC applications.
• 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: A6D7R
  
• Series: Amp-Trap 2000® A6D-R
  
• Fuse Class: Class RK1
  
• Fuse Type: Time-Delay
  
• Ampere Rating: 7A
  
• 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 A6D7R 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 design 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.