A2D5R - 5 Amp Fuse

A2D5R - 5 Amp Fuse

The Mersen A2D5R is a Class RK1 time-delay fuse designed to protect electrical systems from overloads and short circuits without getting in the way of normal equipment startup. Rated at 5 amps and suitable for 250VAC/250VDC applications, it’s commonly used in motor circuits, branch circuits, and other systems where your temporary inrush currents are expected.

One of the reasons electricians and maintenance teams continue to use the Amp-Trap 2000® A2D-R series is its ability to react fast during serious fault conditions while still allowing motors and transformers to start normally. That balance helps you reduce unnecessary downtime and can also help protect switches, starters, and related equipment from damage caused by high fault currents.

The A2D5R is also a practical replacement for older Class H, K, and RK5 fuses already installed in existing equipment.

Key Features and Benefits

• Class RK1 time-delay fuse: Designed for dependable overcurrent protection.
• Reduced nuisance openings: Helps manage temporary motor startup currents.
• Fast-acting fault protection: Responds quickly during serious fault conditions.
• High interrupting rating: Rated at 200kA for demanding applications.
• Replacement compatibility: Replaces older Class H, K, and RK5 fuses.
• Ferrule terminal design: Supports secure installation.
• Tin-plated copper terminals: Provide reliable electrical conductivity.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A2D5R
  
• Series: Amp-Trap 2000® A2D-R
  
• Fuse Class: RK1
  
• Fuse Type: Time-Delay
  
• Amp Rating: 5A
  
• Voltage Rating: 250VAC / 250VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200kA AC
  
• Terminal Type: Ferrule
  
• Terminal Material: Tin-Plated Copper
  
• Mounting Type: Clip
  
• Body Material: PolyTube
  
• Diameter: 14.2 mm
  
• Length: 50.8 mm
  
• Weight: 0.0168 kg
  
• UPC/EAN: 782001990732
  

Material Compliance and Certifications

• RoHS Compliant: Supports environmental compliance standards.
• UL and CSA applications: Designed for low-voltage fuse applications.
• IEC Type 2 protection: Supports IEC Type 2 “No Damage” protection requirements.
  

Where It Works Best

• The A2D5R works well in HVAC systems, motor control circuits, industrial equipment, feeders, branch circuits, control panels, and commercial electrical distribution systems. It’s especially useful where motors or transformers create temporary startup surges that standard fast-acting fuses may not handle well.