A6D70R - 70 Amp Fuse

A6D70R - 70 Amp Fuse

The Mersen A6D70R Amp-Trap 2000® Class RK1 Time-Delay Fuse is made for your electrical systems that need reliable protection without the frustration of unnecessary shutdowns during startup. Rated at 70 Amps, this fuse is designed to handle temporary inrush currents from motors and equipment while still providing fast protection when overloads or short circuits occur.

In many commercial and industrial systems, motors draw extra current for a short time when starting up. That’s where the A6D70R stands out. Its time-delay design helps prevent nuisance fuse openings during normal operation, while still reacting quickly during serious fault conditions. That combination helps protect your motor starters, switches, control panels, feeders, and other important electrical components from damage.

The A6D70R is part of Mersen’s trusted Amp-Trap 2000® A6D-R series, commonly used in manufacturing facilities, HVAC systems, power distribution equipment, and industrial control applications. It also includes the built-in SmartSpot® indicator, which provides a quick visual indication when the fuse opens. For maintenance teams, that means less time spent troubleshooting and faster identification of blown fuses.

Built with blade-style tin-plated copper terminals and a durable PolyTube body, this fuse is designed for consistent performance in demanding environments.

Key Features and Benefits

• 70 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.
• Built-in SmartSpot® indication: Built-in SmartSpot® blown fuse indication.
• 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.
• Blade terminals: Blade terminals for secure clip mounting.
• Commercial and industrial use: Designed for commercial and industrial electrical systems.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A6D70R
  
• Series: Amp-Trap 2000® A6D-R
  
• Fuse Class: Class RK1
  
• Fuse Type: Time-Delay
  
• Ampere Rating: 70A
  
• AC Voltage Rating: 600VAC
  
• DC Voltage Rating: 600VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Indication System: SmartSpot®
  
• Terminal Type: Blade
  
• Mounting: Clip
  
• Terminal Material: Tin-Plated Copper
  
• Body Material: PolyTube
  
• Diameter: 33.3 mm
  
• Length: 200.2 mm
  
• Product Weight: 0.2803 kg
  
• Product Group: Low Voltage UL/CSA Fuses
  

Material Compliance and Certifications

• The Mersen A6D70R 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 high fault currents.