A4J6 - 6 Amp Fuse

A4J6 - 6 Amp Fuse

When sensitive electrical equipment needs your dependable protection, the Mersen A4J6 Amp-Trap® Class J Fast-Acting Fuse responds quickly to fault conditions. Rated at 6 amps, this fuse is designed to interrupt overloads and short circuits before they can cause more serious problems within the system. In commercial and industrial environments where even a small electrical fault can lead to downtime or equipment damage, fast overcurrent protection makes a real difference.

The A4J6 is commonly used in control panels, HVAC equipment, lighting systems, branch circuits, and OEM machinery where reliable circuit protection is important. Its fast-acting, current-limiting design helps reduce the amount of damaging fault energy passing through the circuit, helping protect sensitive electrical components from excess stress during short-circuit conditions.

Another advantage is the Class J rejection-style design, which helps prevent your incorrect replacement of fuses with lower-rated alternatives. That added protection can help support safer maintenance practices and maintain proper system coordination. The ferrule-style terminals provide secure installation in compatible fuse holders, while the PolyTube body is built for dependable performance in demanding operating environments.

With a 600 VAC / 300 VDC rating and a high 200 kA interrupting capacity, the Mersen A4J6 is a practical solution for your electrical systems that require fast fault interruption and dependable circuit protection.

Key Features and Benefits

• 6 amp Class J fast-acting fuse: Designed for rapid response during overloads and short circuits.
• Current-limiting design: Helps reduce equipment damage.
• Improves electrical system safety and reliability: Supports dependable circuit protection.
• Class J rejection-style construction: Helps prevent incorrect replacement.
• High 200 kA interrupting rating: Designed for demanding fault-current conditions.
• Suitable for AC and DC applications: Supports commercial and industrial electrical systems.
• Ferrule terminal design: Provides secure installation.
• Tin-plated copper terminals: Provide dependable conductivity.
• Durable PolyTube body: Designed for commercial and industrial environments.
• ROHS compliant: Supports environmental compliance requirements.
  

Technical Specifications

• Manufacturer: Mersen
  
• Catalog Number: A4J6
  
• Series: Amp-Trap® A4J
  
• Fuse Class: Class J
  
• Fuse Type: Fast-Acting
  
• Amp Rating: 6A
  
• Voltage Rating: 600VAC / 300VDC
  
• Frequency: 50/60 Hz
  
• Interrupting Rating: 200 kA AC
  
• Current Type: AC/DC
  
• Mounting Style: Clip
  
• Terminal Type: Ferrule
  
• Terminal Material: Tin-Plated Copper
  
• Body Material: PolyTube
  
• Product Diameter: 20.7 mm
  
• Product Length: 57.2 mm
  
• Product Weight: 0.044 kg
  
• UPC/EAN: 782001960094
  

Material Compliance and Certifications

• ROHS Compliant: Designed for low-voltage UL/CSA fuse applications.
• Suitable for industrial and commercial electrical systems: Supports dependable overcurrent protection.
  

Where It Works Best

• The A4J6 works well in industrial control panels, HVAC systems, lighting circuits, branch circuits, OEM equipment, and electrical distribution systems where fast overcurrent protection is important. It is especially useful in applications with sensitive electrical components that require quick interruption during overloads and short-circuit conditions to help reduce equipment damage and downtime.